Merge 'main' into sparsehistogram

Signed-off-by: Jesus Vazquez <jesus.vazquez@grafana.com>

.circleci/config.yml

@@ -1,195 +1,33 @@
 ---
+# Prometheus has switched to GitHub action.
+# Circle CI is not disabled repository-wise so that previous pull requests
+# continue working.
+# This file does not generate any CircleCI workflow.
+
 version: 2.1
 
-orbs:
-  prometheus: prometheus/prometheus@0.16.0
-  go: circleci/go@1.7.0
-  win: circleci/windows@2.3.0
-
 executors:
-  # Whenever the Go version is updated here, .promu.yml
-  # should also be updated.
   golang:
     docker:
-      - image: quay.io/prometheus/golang-builder:1.18-base
-  golang_oldest:
-    docker:
-      - image: quay.io/prometheus/golang-builder:1.18-base
+      - image: busybox
 
 jobs:
-  test_go:
+  noopjob:
     executor: golang
 
     steps:
-      - prometheus/setup_environment
-      - go/load-cache:
-          key: v1
       - run:
-          command: make GO_ONLY=1
-          environment:
-            # Run garbage collection more aggressively to avoid getting OOMed during the lint phase.
-            GOGC: "20"
-            # By default Go uses GOMAXPROCS but a Circle CI executor has many
-            # cores (> 30) while the CPU and RAM resources are throttled. If we
-            # don't limit this to the number of allocated cores, the job is
-            # likely to get OOMed and killed.
-            GOOPTS: "-p 2"
-            GOMAXPROCS: "2"
-            GO111MODULE: "on"
-      - run: go test ./tsdb/ -test.tsdb-isolation=false
-      - run: make -C documentation/examples/remote_storage
-      - run: make -C documentation/examples
-      - prometheus/check_proto:
-          version: "3.15.8"
-      - prometheus/store_artifact:
-          file: prometheus
-      - prometheus/store_artifact:
-          file: promtool
-      - go/save-cache:
-          key: v1
-      - store_test_results:
-          path: test-results
-
-  test_ui:
-    executor: golang
-
-    steps:
-      - checkout
-      - restore_cache:
-          keys:
-            - v3-npm-deps-{{ checksum "web/ui/package-lock.json" }}
-            - v3-npm-deps-
-      - run: make assets-tarball
-      - run: make ui-lint
-      - run: make ui-test
-      - persist_to_workspace:
-          root: .
-          paths:
-            - .tarballs
-      - save_cache:
-          key: v3-npm-deps-{{ checksum "web/ui/package-lock.json" }}
-          paths:
-            - ~/.npm
-
-  test_windows:
-    executor:
-      name: win/default
-      shell: powershell
-    working_directory: /go/src/github.com/prometheus/prometheus
-    steps:
-      - checkout
-      - run:
-          # Temporary workaround until circleci updates go.
-          command: |
-            choco upgrade -y golang
-      - run:
-          command: refreshenv
-      - run:
-          command: |
-            $TestTargets = go list ./... | Where-Object { $_ -NotMatch "(github.com/prometheus/prometheus/discovery.*|github.com/prometheus/prometheus/config|github.com/prometheus/prometheus/web)"}
-            go test $TestTargets -vet=off -v
-          environment:
-            GOGC: "20"
-            GOOPTS: "-p 2"
-
-  test_golang_oldest:
-    executor: golang_oldest
-    steps:
-      - checkout
-      - run: make build
-      - run: go test ./tsdb/...
-      - run: go test ./tsdb/ -test.tsdb-isolation=false
-
-  test_mixins:
-    executor: golang
-    steps:
-      - checkout
-      - run: go install ./cmd/promtool/.
-      - run: go install github.com/google/go-jsonnet/cmd/jsonnet@latest
-      - run: go install github.com/google/go-jsonnet/cmd/jsonnetfmt@latest
-      - run: go install github.com/jsonnet-bundler/jsonnet-bundler/cmd/jb@latest
-      - run: make -C documentation/prometheus-mixin clean
-      - run: make -C documentation/prometheus-mixin jb_install
-      - run: make -C documentation/prometheus-mixin
-      - run: git diff --exit-code
-
-  repo_sync:
-    executor: golang
-    steps:
-      - checkout
-      - run: ./scripts/sync_repo_files.sh
+          command: "true"
 
 workflows:
   version: 2
   prometheus:
     jobs:
-      - test_go:
-          filters:
-            tags:
-              only: /.*/
-      - test_ui:
-          filters:
-            tags:
-              only: /.*/
-      - test_golang_oldest:
-          filters:
-            tags:
-              only: /.*/
-      - test_mixins:
-          filters:
-            tags:
-              only: /.*/
-      - test_windows:
-          filters:
-            tags:
-              only: /.*/
-      - prometheus/build:
-          name: build
-          parallelism: 3
-          promu_opts: "-p linux/amd64 -p windows/amd64 -p linux/arm64 -p darwin/amd64 -p darwin/arm64 -p linux/386"
-          filters:
-            tags:
-              ignore: /^v2(\.[0-9]+){2}(-.+|[^-.]*)$/
-            branches:
-              ignore: /^(main|release-.*|.*build-all.*)$/
-      - prometheus/build:
-          name: build_all
-          parallelism: 12
-          filters:
-            branches:
-              only: /^(main|release-.*|.*build-all.*)$/
-            tags:
-              only: /^v2(\.[0-9]+){2}(-.+|[^-.]*)$/
-      - prometheus/publish_main:
-          context: org-context
-          requires:
-            - test_go
-            - test_ui
-            - build_all
-          filters:
-            branches:
-              only: main
-          image: circleci/golang:1-node
-      - prometheus/publish_release:
-          context: org-context
-          requires:
-            - test_go
-            - test_ui
-            - build_all
-          filters:
-            tags:
-              only: /^v2(\.[0-9]+){2}(-.+|[^-.]*)$/
-            branches:
-              ignore: /.*/
-          image: circleci/golang:1-node
-  daily:
+      - noopjob
     triggers:
       - schedule:
-          cron: "49 19 * * *"
+          cron: "0 0 30 2 *"
           filters:
             branches:
               only:
                 - main
-    jobs:
-      - repo_sync:
-          context: org-context

.github/actions/build/action.yml

@@ -0,0 +1,23 @@
+name: Build
+inputs:
+  thread:
+    type: integer
+    description: Current thread
+    required: true
+    default: 3
+  parallelism:
+    type: integer
+    description: Number of builds to do in parallel
+    default: 3
+  promu_opts:
+    type: string
+    description: Options to pass to promu
+runs:
+  using: composite
+  steps:
+    - uses: ./.github/actions/setup_environment
+    - run: ~/go/bin/promu crossbuild -v --parallelism ${{ inputs.parallelism }} --parallelism-thread ${{ inputs.thread }} ${{ inputs.promu_opts }}
+      shell: bash
+    - uses: ./.github/actions/save_artifacts
+      with:
+        directory: .build

.github/actions/check_proto/action.yml

@@ -0,0 +1,20 @@
+name: Check proto files
+inputs:
+  version:
+    type: string
+    description: Protoc version
+    default: "3.5.1"
+runs:
+  using: composite
+  steps:
+    - run: |
+        env
+        set -x
+        curl -s -L https://github.com/protocolbuffers/protobuf/releases/download/v${{ inputs.version }}/protoc-${{ inputs.version }}-linux-x86_64.zip > /tmp/protoc.zip
+        unzip -d /tmp /tmp/protoc.zip
+        chmod +x /tmp/bin/protoc
+        export PATH=/tmp/bin:$PATH
+        make proto
+      shell: bash
+    - run: git diff --exit-code
+      shell: bash

.github/actions/publish_images/action.yml

@@ -0,0 +1,47 @@
+name: Publish image
+inputs:
+  registry:
+    type: string
+    description: Docker registry
+  organization:
+    type: string
+    description: Organization
+  login:
+    type: string
+    description: Username
+  password:
+    type: string
+    description: Password
+  dockerfile_path:
+    description: Path to Dockerfile
+    type: string
+    default: ""
+  dockerbuild_context:
+    description: Path to Dockerbuild context
+    type: string
+    default: ""
+  container_image_name:
+    description: Name of the container image
+    type: string
+    default: ""
+runs:
+  using: composite
+  steps:
+    - if: inputs.dockerfile_path != ''
+      run: echo "export DOCKERFILE_PATH=${{ inputs.dockerfile_path }}" >> /tmp/tmp-profile
+      shell: bash
+    - if: inputs.container_image_name != ''
+      run: echo "export DOCKER_IMAGE_NAME=${{ inputs.container_image_name }}" >> /tmp/tmp-profile
+      shell: bash
+    - if: inputs.dockerbuild_context != ''
+      run: echo "export DOCKERBUILD_CONTEXT=${{ inputs.dockerbuild_context }}" >> /tmp/tmp-profile
+      shell: bash
+    - run: |
+        touch /tmp/tmp-profile
+        . /tmp/tmp-profile
+        make docker DOCKER_REPO=${{ inputs.registry }}/${{ inputs.organization }}
+        docker images
+        echo ${{ inputs.password }} | docker login -u ${{ inputs.login }} --password-stdin ${{ inputs.registry }}
+        make docker-publish DOCKER_REPO=${{ inputs.registry }}/${{ inputs.organization }}
+        make docker-manifest DOCKER_REPO=${{ inputs.registry }}/${{ inputs.organization }}
+      shell: bash

.github/actions/publish_main/action.yml

@@ -0,0 +1,43 @@
+name: Publish image
+inputs:
+  docker_hub_organization:
+    type: string
+    description: DockerHub organization
+    default: prom
+  docker_hub_login:
+    type: string
+    description: DockerHub username
+  docker_hub_password:
+    type: string
+    description: DockerHub password
+  quay_io_organization:
+    type: string
+    description: Quay.io organization
+    default: prometheus
+  quay_io_login:
+    type: string
+    description: Quay.io username
+  quay_io_password:
+    type: string
+    description: Quay.io password
+runs:
+  using: composite
+  steps:
+    - uses: ./.github/actions/setup_environment
+      with:
+        enable_docker_multibuild: true
+    - uses: ./.github/actions/restore_artifacts
+    - uses: ./.github/actions/publish_images
+      if: inputs.docker_hub_organization != '' && inputs.docker_hub_login != ''
+      with:
+        registry: docker.io
+        organization: ${{ inputs.docker_hub_organization }}
+        login: ${{ inputs.docker_hub_login }}
+        password: ${{ inputs.docker_hub_password }}
+    - uses: ./.github/actions/publish_images
+      if: inputs.quay_io_organization != '' && inputs.quay_io_login != ''
+      with:
+        registry: quay.io
+        organization: ${{ inputs.quay_io_organization }}
+        login: ${{ inputs.quay_io_login }}
+        password: ${{ inputs.quay_io_password }}

.github/actions/publish_release/action.yml

@@ -0,0 +1,54 @@
+name: Publish image
+inputs:
+  docker_hub_organization:
+    type: string
+    description: DockerHub organization
+    default: prom
+  docker_hub_login:
+    type: string
+    description: DockerHub username
+  docker_hub_password:
+    type: string
+    description: DockerHub password
+  quay_io_organization:
+    type: string
+    description: Quay.io organization
+    default: prometheus
+  quay_io_login:
+    type: string
+    description: Quay.io username
+  quay_io_password:
+    type: string
+    description: Quay.io password
+  github_token:
+    type: string
+    description: Github Token
+runs:
+  using: composite
+  steps:
+    - uses: ./.github/actions/setup_environment
+      with:
+        enable_docker_multibuild: true
+    - uses: ./.github/actions/restore_artifacts
+    - run: ~/go/bin/promu crossbuild tarballs
+      shell: bash
+    - run: ~/go/bin/promu checksum .tarballs
+      shell: bash
+    - run: ~/go/bin/promu release .tarballs
+      shell: bash
+      env:
+        GITHUB_TOKEN: ${{ inputs.github_token }}
+    - uses: ./.github/actions/publish_release_images
+      if: inputs.docker_hub_organization != '' && inputs.docker_hub_login != ''
+      with:
+        registry: docker.io
+        organization: ${{ inputs.docker_hub_organization }}
+        login: ${{ inputs.docker_hub_login }}
+        password: ${{ inputs.docker_hub_password }}
+    - uses: ./.github/actions/publish_release_images
+      if: inputs.quay_io_organization != '' && inputs.quay_io_login != ''
+      with:
+        registry: quay.io
+        organization: ${{ inputs.quay_io_organization }}
+        login: ${{ inputs.quay_io_login }}
+        password: ${{ inputs.quay_io_password }}

.github/actions/publish_release_images/action.yml

@@ -0,0 +1,53 @@
+name: Publish release image
+inputs:
+  registry:
+    type: string
+    description: Docker registry
+  organization:
+    type: string
+    description: Organization
+  login:
+    type: string
+    description: Username
+  password:
+    type: string
+    description: Password
+  dockerfile_path:
+    description: Path to Dockerfile
+    type: string
+    default: ""
+  dockerbuild_context:
+    description: Path to Dockerbuild context
+    type: string
+    default: ""
+  container_image_name:
+    description: Name of the container image
+    type: string
+    default: ""
+runs:
+  using: composite
+  steps:
+    - if: inputs.dockerfile_path != ''
+      run: echo "export DOCKERFILE_PATH=${{ inputs.dockerfile_path }}" >> /tmp/tmp-profile
+      shell: bash
+    - if: inputs.container_image_name != ''
+      run: echo "export DOCKER_IMAGE_NAME=${{ inputs.container_image_name }}" >> /tmp/tmp-profile
+      shell: bash
+    - if: inputs.dockerbuild_context != ''
+      run: echo "export DOCKERBUILD_CONTEXT=${{ inputs.dockerbuild_context }}" >> /tmp/tmp-profile
+      shell: bash
+    - run: |
+        current_tag=${GITHUB_REF#refs/*/}
+        touch /tmp/tmp-profile
+        . /tmp/tmp-profile
+        make docker DOCKER_IMAGE_TAG="$current_tag" DOCKER_REPO=${{ inputs.registry }}/${{ inputs.organization }}
+        docker images
+        echo ${{ inputs.password }} | docker login -u ${{ inputs.login }} --password-stdin ${{ inputs.registry }}
+        make docker-publish DOCKER_IMAGE_TAG="$current_tag" DOCKER_REPO=${{ inputs.registry }}/${{ inputs.organization }}
+        make docker-manifest DOCKER_IMAGE_TAG="$current_tag" DOCKER_REPO=${{ inputs.registry }}/${{ inputs.organization }}
+        if [[ "$current_tag" =~ ^v[0-9]+(\.[0-9]+){2}$ ]]; then
+          make docker-tag-latest DOCKER_IMAGE_TAG="$current_tag" DOCKER_REPO=${{ inputs.registry }}/${{ inputs.organization }}
+          make docker-publish DOCKER_IMAGE_TAG="latest" DOCKER_REPO=${{ inputs.registry }}/${{ inputs.organization }}
+          make docker-manifest DOCKER_IMAGE_TAG="latest" DOCKER_REPO=${{ inputs.registry }}/${{ inputs.organization }}
+        fi
+      shell: bash

.github/actions/restore_artifacts/action.yml

@@ -0,0 +1,19 @@
+# Restore artifacts created by save_artifacts.
+# Tar is used because the default actions do not preserve directory structure
+# and file mode.
+name: Restore artifacts
+runs:
+  using: composite
+  steps:
+    - name: Download all workflow run artifacts
+      uses: actions/download-artifact@v3
+      with:
+        name: artifact
+        path: .artifacts
+    - run: |
+        for tar in .artifacts/*.tar
+        do
+          tar xvf $tar
+        done
+        rm -v .artifacts/*.tar
+      shell: bash

.github/actions/save_artifacts/action.yml

@@ -0,0 +1,17 @@
+# Tar is used because the default actions do not preserve directory structure
+# and file mode.
+name: Save artifacts
+inputs:
+  directory:
+    type: string
+    description: Path of the directory to save
+runs:
+  using: composite
+  steps:
+    - run: |
+        tar cvf artifact.tar ${{ inputs.directory }}
+        mv artifact.tar artifact-$(sha1sum artifact.tar|awk '{ print $1 }').tar
+      shell: bash
+    - uses: actions/upload-artifact@v3
+      with:
+        path: artifact-*.tar

.github/actions/setup_environment/action.yml

@@ -0,0 +1,43 @@
+name: Setup environment
+inputs:
+  enable_go:
+    type: boolean
+    description: Whether to enable go specific features, such as caching.
+    default: true
+  enable_npm:
+    type: boolean
+    description: Whether to enable npm specific features, such as caching.
+    default: false
+  enable_docker_multibuild:
+    type: boolean
+    description: Whether to enable multibuild docker
+    default: false
+runs:
+  using: composite
+  steps:
+    - uses: actions/cache@v3
+      if: inputs.enable_go == 'true'
+      with:
+        path: |
+          ~/.cache/go-build
+          ~/go/pkg/mod
+        key: ${{ runner.os }}-go-${{ hashFiles('**/go.sum') }}
+        restore-keys: |
+          ${{ runner.os }}-go-
+    - uses: actions/cache@v3
+      if: inputs.enable_npm == 'true'
+      with:
+        path: |
+          ~/.npm
+        key: ${{ runner.os }}-npm-${{ hashFiles('web/ui/package-lock.json') }}
+        restore-keys: |
+          ${{ runner.os }}-npm-
+    - run: make promu
+      shell: bash
+      if: inputs.enable_go == 'true'
+    - name: Set up QEMU
+      uses: docker/setup-qemu-action@v1
+      if: inputs.enable_docker_multibuild == 'true'
+    - name: Set up buildx
+      uses: docker/setup-buildx-action@v1
+      if: inputs.enable_docker_multibuild == 'true'

.github/workflows/buf-lint.yml

@@ -1,5 +1,5 @@
 name: buf.build
-on:
+on:  # yamllint disable-line rule:truthy
   pull_request:
     paths:
       - ".github/workflows/buf-lint.yml"

.github/workflows/buf.yml

@@ -1,5 +1,5 @@
 name: buf.build
-on:
+on:  # yamllint disable-line rule:truthy
   push:
     branches:
       - main

.github/workflows/ci.yml

@@ -0,0 +1,213 @@
+---
+name: CI
+on:  # yamllint disable-line rule:truthy
+  pull_request:
+  push:
+jobs:
+  test_go:
+    name: Go tests
+    runs-on: ubuntu-latest
+    # Whenever the Go version is updated here, .promu.yml
+    # should also be updated.
+    container:
+      image: quay.io/prometheus/golang-builder:1.19-base
+    steps:
+      - uses: actions/checkout@v3
+      - uses: ./.github/actions/setup_environment
+      - run: make GO_ONLY=1 SKIP_GOLANGCI_LINT=1
+      - run: go test ./tsdb/ -test.tsdb-isolation=false
+      - run: make -C documentation/examples/remote_storage
+      - run: make -C documentation/examples
+      - uses: ./.github/actions/check_proto
+        with:
+          version: "3.15.8"
+
+  test_ui:
+    name: UI tests
+    runs-on: ubuntu-latest
+    # Whenever the Go version is updated here, .promu.yml
+    # should also be updated.
+    container:
+      image: quay.io/prometheus/golang-builder:1.19-base
+
+    steps:
+      - uses: actions/checkout@v3
+      - uses: ./.github/actions/setup_environment
+        with:
+          enable_go: false
+          enable_npm: true
+      - run: make assets-tarball
+      - run: make ui-lint
+      - run: make ui-test
+      - uses: ./.github/actions/save_artifacts
+        with:
+          directory: .tarballs
+
+  test_windows:
+    name: Go tests on Windows
+    runs-on: windows-latest
+    steps:
+      - uses: actions/checkout@v3
+      - uses: actions/setup-go@v3
+        with:
+          go-version: '>=1.19 <1.20'
+      - run: |
+          $TestTargets = go list ./... | Where-Object { $_ -NotMatch "(github.com/prometheus/prometheus/discovery.*|github.com/prometheus/prometheus/config|github.com/prometheus/prometheus/web)"}
+          go test $TestTargets -vet=off -v
+        shell: powershell
+
+  test_golang_oldest:
+    name: Go tests with previous Go version
+    runs-on: ubuntu-latest
+    # The go verson in this image should be N-1 wrt test_go.
+    container:
+      image: quay.io/prometheus/golang-builder:1.18-base
+    steps:
+      - uses: actions/checkout@v3
+      - run: make build
+      - run: go test ./tsdb/...
+      - run: go test ./tsdb/ -test.tsdb-isolation=false
+
+  test_mixins:
+    name: Mixins tests
+    runs-on: ubuntu-latest
+    # Whenever the Go version is updated here, .promu.yml
+    # should also be updated.
+    container:
+      image: quay.io/prometheus/golang-builder:1.19-base
+    steps:
+      - uses: actions/checkout@v3
+      - run: go install ./cmd/promtool/.
+      - run: go install github.com/google/go-jsonnet/cmd/jsonnet@latest
+      - run: go install github.com/google/go-jsonnet/cmd/jsonnetfmt@latest
+      - run: go install github.com/jsonnet-bundler/jsonnet-bundler/cmd/jb@latest
+      - run: make -C documentation/prometheus-mixin clean
+      - run: make -C documentation/prometheus-mixin jb_install
+      - run: make -C documentation/prometheus-mixin
+      - run: git diff --exit-code
+
+  build:
+    name: Build Prometheus for common architectures
+    runs-on: ubuntu-latest
+    if: |
+      !(github.event_name == 'push' && startsWith(github.ref, 'refs/tags/v2.'))
+      &&
+      !(github.event_name == 'pull_request' && startsWith(github.event.pull_request.base.ref, 'release-'))
+      &&
+      !(github.event_name == 'push' && github.event.ref == 'refs/heads/main')
+    strategy:
+      matrix:
+        thread: [ 0, 1, 2 ]
+    steps:
+      - uses: actions/checkout@v3
+      - uses: ./.github/actions/build
+        with:
+          promu_opts: "-p linux/amd64 -p windows/amd64 -p linux/arm64 -p darwin/amd64 -p darwin/arm64 -p linux/386"
+          parallelism: 3
+          thread: ${{ matrix.thread }}
+  build_all:
+    name: Build Prometheus for all architectures
+    runs-on: ubuntu-latest
+    if: |
+      (github.event_name == 'push' && startsWith(github.ref, 'refs/tags/v2.'))
+      ||
+      (github.event_name == 'pull_request' && startsWith(github.event.pull_request.base.ref, 'release-'))
+      ||
+      (github.event_name == 'push' && github.event.ref == 'refs/heads/main')
+    strategy:
+      matrix:
+        thread: [ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 ]
+
+    # Whenever the Go version is updated here, .promu.yml
+    # should also be updated.
+    steps:
+      - uses: actions/checkout@v3
+      - uses: ./.github/actions/build
+        with:
+          parallelism: 12
+          thread: ${{ matrix.thread }}
+  golangci:
+    name: golangci-lint
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v3
+      - name: Install Go
+        uses: actions/setup-go@v3
+        with:
+          go-version: '<1.19'
+      - name: Install snmp_exporter/generator dependencies
+        run: sudo apt-get update && sudo apt-get -y install libsnmp-dev
+        if: github.repository == 'prometheus/snmp_exporter'
+      - name: Lint
+        uses: golangci/golangci-lint-action@v3.2.0
+        with:
+          version: v1.49.0
+  fuzzing:
+    uses: ./.github/workflows/fuzzing.yml
+    if: github.event_name == 'pull_request'
+  codeql:
+    uses: ./.github/workflows/codeql-analysis.yml
+
+  publish_main:
+    name: Publish main branch artifacts
+    runs-on: ubuntu-latest
+    needs: [test_ui, test_go, test_windows, golangci, codeql, build_all]
+    if: github.event_name == 'push' && github.event.ref == 'refs/heads/main'
+    steps:
+      - uses: actions/checkout@v3
+      - uses: ./.github/actions/publish_main
+        with:
+          docker_hub_login: ${{ secrets.docker_hub_login }}
+          docker_hub_password: ${{ secrets.docker_hub_password }}
+          quay_io_login: ${{ secrets.quay_io_login }}
+          quay_io_password: ${{ secrets.quay_io_password }}
+  publish_release:
+    name: Publish release arfefacts
+    runs-on: ubuntu-latest
+    needs: [test_ui, test_go, test_windows, golangci, codeql, build_all]
+    if: github.event_name == 'push' && startsWith(github.ref, 'refs/tags/v2.')
+    steps:
+      - uses: actions/checkout@v3
+      - uses: ./.github/actions/publish_release
+        with:
+          docker_hub_login: ${{ secrets.docker_hub_login }}
+          docker_hub_password: ${{ secrets.docker_hub_password }}
+          quay_io_login: ${{ secrets.quay_io_login }}
+          quay_io_password: ${{ secrets.quay_io_password }}
+          github_token: ${{ secrets.PROMBOT_GITHUB_TOKEN }}
+  publish_ui_release:
+    name: Publish UI on npm Registry
+    runs-on: ubuntu-latest
+    needs: [test_ui, codeql]
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+      - name: Install nodejs
+        uses: actions/setup-node@v3
+        with:
+          node-version-file: "web/ui/.nvmrc"
+          registry-url: "https://registry.npmjs.org"
+      - uses: actions/cache@v3.0.9
+        with:
+          path: ~/.npm
+          key: ${{ runner.os }}-node-${{ hashFiles('**/package-lock.json') }}
+          restore-keys: |
+            ${{ runner.os }}-node-
+      - name: Check libraries version
+        if: github.event_name == 'push' && startsWith(github.ref, 'refs/tags/v2.')
+        run: ./scripts/ui_release.sh --check-package "$(echo ${{ github.ref_name }}|sed s/v2/v0/)"
+      - name: build
+        run: make assets
+      - name: Copy files before publishing libs
+        run: ./scripts/ui_release.sh --copy
+      - name: Publish dry-run libraries
+        if: "!(github.event_name == 'push' && startsWith(github.ref, 'refs/tags/v2.'))"
+        run: ./scripts/ui_release.sh --publish dry-run
+      - name: Publish libraries
+        if: github.event_name == 'push' && startsWith(github.ref, 'refs/tags/v2.')
+        run: ./scripts/ui_release.sh --publish
+        env:
+          # The setup-node action writes an .npmrc file with this env variable
+          # as the placeholder for the auth token
+          NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}

.github/workflows/codeql-analysis.yml

@@ -1,11 +1,8 @@
 ---
 name: "CodeQL"
 
-on:
-  push:
-    branches: [main, release-*]
-  pull_request:
-    branches: [main]
+on:  # yamllint disable-line rule:truthy
+  workflow_call:
   schedule:
     - cron: "26 14 * * 1"
 
@@ -26,7 +23,7 @@ jobs:
         uses: actions/checkout@v3
       - uses: actions/setup-go@v3
         with:
-          go-version: '>=1.17 <1.18'
+          go-version: '>=1.19 <1.20'
 
       - name: Initialize CodeQL
         uses: github/codeql-action/init@v2

.github/workflows/funcbench.yml

@@ -1,4 +1,4 @@
-on:
+on:  # yamllint disable-line rule:truthy
   repository_dispatch:
     types: [funcbench_start]
 name: Funcbench Workflow
@@ -12,7 +12,7 @@ jobs:
       BRANCH: ${{ github.event.client_payload.BRANCH }}
       BENCH_FUNC_REGEX: ${{ github.event.client_payload.BENCH_FUNC_REGEX }}
       PACKAGE_PATH: ${{ github.event.client_payload.PACKAGE_PATH }}
-      GITHUB_TOKEN: ${{ secrets.PROMBOT_TOKEN }}
+      GITHUB_TOKEN: ${{ secrets.PROMBOT_GITHUB_TOKEN }}
       GITHUB_ORG: prometheus
       GITHUB_REPO: prometheus
       GITHUB_STATUS_TARGET_URL: https://github.com/${{github.repository}}/actions/runs/${{github.run_id}}

.github/workflows/fuzzing.yml

@@ -1,6 +1,6 @@
 name: CIFuzz
-on:
-  pull_request:
+on:  # yamllint disable-line rule:truthy
+  workflow_call:
 jobs:
   Fuzzing:
     runs-on: ubuntu-latest

.github/workflows/golangci-lint.yml

@@ -1,30 +0,0 @@
-name: golangci-lint
-on:
-  push:
-    paths:
-      - "go.sum"
-      - "go.mod"
-      - "**.go"
-      - "scripts/errcheck_excludes.txt"
-      - ".github/workflows/golangci-lint.yml"
-      - ".golangci.yml"
-  pull_request:
-
-jobs:
-  golangci:
-    name: lint
-    runs-on: ubuntu-latest
-    steps:
-      - name: Checkout repository
-        uses: actions/checkout@v3
-      - name: install Go
-        uses: actions/setup-go@v2
-        with:
-          go-version: 1.18.x
-      - name: Install snmp_exporter/generator dependencies
-        run: sudo apt-get update && sudo apt-get -y install libsnmp-dev
-        if: github.repository == 'prometheus/snmp_exporter'
-      - name: Lint
-        uses: golangci/golangci-lint-action@v3.2.0
-        with:
-          version: v1.45.2

.github/workflows/lock.yml

@@ -1,6 +1,6 @@
 name: 'Lock Threads'
 
-on:
+on:  # yamllint disable-line rule:truthy
   schedule:
     - cron: '13 23 * * *'
   workflow_dispatch:

.github/workflows/prombench.yml

@@ -1,4 +1,4 @@
-on:
+on:  # yamllint disable-line rule:truthy
   repository_dispatch:
     types: [prombench_start, prombench_restart, prombench_stop]
 name: Prombench Workflow

.github/workflows/repo_sync.yml

@@ -0,0 +1,15 @@
+---
+name: Sync repo files
+on:  # yamllint disable-line rule:truthy
+  schedule:
+    - cron: '44 17 * * *'
+jobs:
+  repo_sync:
+    runs-on: ubuntu-latest
+    container:
+      image: quay.io/prometheus/golang-builder
+    steps:
+      - uses: actions/checkout@v3
+      - run: ./scripts/sync_repo_files.sh
+        env:
+          GITHUB_TOKEN: ${{ secrets.PROMBOT_GITHUB_TOKEN }}

.github/workflows/ui_build_and_release.yml

@@ -1,45 +0,0 @@
-name: ui_build_and_release
-on:
-  pull_request:
-  push:
-    branches:
-      - main
-    tags:
-      - "v0.[0-9]+.[0-9]+*"
-jobs:
-  release:
-    name: release
-    runs-on: ubuntu-latest
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v3
-      - name: Install nodejs
-        uses: actions/setup-node@v3
-        with:
-          node-version-file: "web/ui/.nvmrc"
-          registry-url: "https://registry.npmjs.org"
-      - uses: actions/cache@v3.0.5
-        with:
-          path: ~/.npm
-          key: ${{ runner.os }}-node-${{ hashFiles('**/package-lock.json') }}
-          restore-keys: |
-            ${{ runner.os }}-node-
-
-      - name: Check libraries version
-        ## This step is verifying that the version of each package is matching the tag
-        if: ${{ github.event_name == 'push' && startsWith(github.ref_name, 'v') }}
-        run: ./scripts/ui_release.sh --check-package "${{ github.ref_name }}"
-      - name: build
-        run: make assets
-      - name: Copy files before publishing libs
-        run: ./scripts/ui_release.sh --copy
-      - name: Publish dry-run libraries
-        if: ${{ github.event_name == 'pull_request' || github.ref_name == 'main' }}
-        run: ./scripts/ui_release.sh --publish dry-run
-      - name: Publish libraries
-        if: ${{ github.event_name == 'push' && startsWith(github.ref_name, 'v') }}
-        run: ./scripts/ui_release.sh --publish
-        env:
-          # The setup-node action writes an .npmrc file with this env variable
-          # as the placeholder for the auth token
-          NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}

.gitpod.Dockerfile

@@ -1,7 +1,15 @@
 FROM gitpod/workspace-full
 
 ENV CUSTOM_NODE_VERSION=16
+ENV CUSTOM_GO_VERSION=1.19
+ENV GOPATH=$HOME/go-packages
+ENV GOROOT=$HOME/go
+ENV PATH=$GOROOT/bin:$GOPATH/bin:$PATH
 
 RUN bash -c ". .nvm/nvm.sh && nvm install ${CUSTOM_NODE_VERSION} && nvm use ${CUSTOM_NODE_VERSION} && nvm alias default ${CUSTOM_NODE_VERSION}"
 
 RUN echo "nvm use default &>/dev/null" >> ~/.bashrc.d/51-nvm-fix
+RUN curl -fsSL https://dl.google.com/go/go${GO_VERSION}.linux-amd64.tar.gz | tar xzs \
+    && printf '%s\n' 'export GOPATH=/workspace/go' \
+                      'export PATH=$GOPATH/bin:$PATH' > $HOME/.bashrc.d/300-go
+

.promu.yml

@@ -1,7 +1,7 @@
 go:
     # Whenever the Go version is updated here,
     # .circle/config.yml should also be updated.
-    version: 1.18
+    version: 1.19
 repository:
     path: github.com/prometheus/prometheus
 build:

CHANGELOG.md

@@ -1,5 +1,37 @@
 # Changelog
 
+## 2.39.0 / 2022-10-05
+
+* [FEATURE] **experimental** TSDB: Add support for ingesting out-of-order samples. This is configured via `out_of_order_time_window` field in the config file; check config file docs for more info. #11075
+* [ENHANCEMENT] API: `/-/healthy` and `/-/ready` API calls now also respond to a `HEAD` request on top of existing `GET` support. #11160
+* [ENHANCEMENT] PuppetDB SD: Add `__meta_puppetdb_query` label. #11238
+* [ENHANCEMENT] AWS EC2 SD: Add `__meta_ec2_region` label. #11326
+* [ENHANCEMENT] AWS Lightsail SD: Add `__meta_lightsail_region` label. #11326
+* [ENHANCEMENT] Scrape: Optimise relabeling by re-using memory. #11147
+* [ENHANCEMENT] TSDB: Improve WAL replay timings. #10973 #11307 #11319
+* [ENHANCEMENT] TSDB: Optimise memory by not storing unnecessary data in the memory. #11280 #11288 #11296
+* [ENHANCEMENT] TSDB: Allow overlapping blocks by default. `--storage.tsdb.allow-overlapping-blocks` now has no effect. #11331
+* [ENHANCEMENT] UI: Click to copy label-value pair from query result to clipboard. #11229
+* [BUGFIX] TSDB: Turn off isolation for Head compaction to fix a memory leak. #11317
+* [BUGFIX] TSDB: Fix 'invalid magic number 0' error on Prometheus startup. #11338
+* [BUGFIX] PromQL: Properly close file descriptor when logging unfinished queries. #11148
+* [BUGFIX] Agent: Fix validation of flag options and prevent WAL from growing more than desired. #9876
+
+## 2.38.0 / 2022-08-16
+
+* [FEATURE]: Web: Add a `/api/v1/format_query` HTTP API endpoint that allows pretty-formatting PromQL expressions. #11036 #10544 #11005
+* [FEATURE]: UI: Add support for formatting PromQL expressions in the UI. #11039
+* [FEATURE]: DNS SD: Support MX records for discovering targets. #10099
+* [FEATURE]: Templates: Add `toTime()` template function that allows converting sample timestamps to Go `time.Time` values. #10993
+* [ENHANCEMENT]: Kubernetes SD: Add `__meta_kubernetes_service_port_number` meta label indicating the service port number. #11002 #11053
+* [ENHANCEMENT]: Kubernetes SD: Add `__meta_kubernetes_pod_container_image` meta label indicating the container image. #11034 #11146
+* [ENHANCEMENT]: PromQL: When a query panics, also log the query itself alongside the panic message. #10995
+* [ENHANCEMENT]: UI: Tweak colors in the dark theme to improve the contrast ratio. #11068
+* [ENHANCEMENT]: Web: Speed up calls to `/api/v1/rules` by avoiding locks and using atomic types instead. #10858
+* [ENHANCEMENT]: Scrape: Add a `no-default-scrape-port` feature flag, which omits or removes any default HTTP (`:80`) or HTTPS (`:443`) ports in the target's scrape address. #9523
+* [BUGFIX]: TSDB: In the WAL watcher metrics, expose the `type="exemplar"` label instead of `type="unknown"` for exemplar records. #11008
+* [BUGFIX]: TSDB: Fix race condition around allocating series IDs during chunk snapshot loading. #11099
+
 ## 2.37.0 / 2022-07-14
 
 This release is a LTS (Long-Term Support) release of Prometheus and will

Makefile.common

@@ -58,16 +58,19 @@ endif
 PROMU_VERSION ?= 0.13.0
 PROMU_URL     := https://github.com/prometheus/promu/releases/download/v$(PROMU_VERSION)/promu-$(PROMU_VERSION).$(GO_BUILD_PLATFORM).tar.gz
 
+SKIP_GOLANGCI_LINT :=
 GOLANGCI_LINT :=
 GOLANGCI_LINT_OPTS ?=
-GOLANGCI_LINT_VERSION ?= v1.45.2
+GOLANGCI_LINT_VERSION ?= v1.49.0
 # golangci-lint only supports linux, darwin and windows platforms on i386/amd64.
 # windows isn't included here because of the path separator being different.
 ifeq ($(GOHOSTOS),$(filter $(GOHOSTOS),linux darwin))
 	ifeq ($(GOHOSTARCH),$(filter $(GOHOSTARCH),amd64 i386))
 		# If we're in CI and there is an Actions file, that means the linter
 		# is being run in Actions, so we don't need to run it here.
-		ifeq (,$(CIRCLE_JOB))
+		ifneq (,$(SKIP_GOLANGCI_LINT))
+			GOLANGCI_LINT :=
+		else ifeq (,$(CIRCLE_JOB))
 			GOLANGCI_LINT := $(FIRST_GOPATH)/bin/golangci-lint
 		else ifeq (,$(wildcard .github/workflows/golangci-lint.yml))
 			GOLANGCI_LINT := $(FIRST_GOPATH)/bin/golangci-lint

RELEASE.md

@@ -43,7 +43,9 @@ Release cadence of first pre-releases being cut is 6 weeks.
 | v2.36          | 2022-05-18                                 | Matthias Loibl (GitHub: @metalmatze)        |
 | v2.37 LTS      | 2022-06-29                                 | Julien Pivotto (GitHub: @roidelapluie)      |
 | v2.38          | 2022-08-10                                 | Julius Volz (GitHub: @juliusv)              |
-| v2.39          | 2022-09-21                                 | **searching for volunteer**                 |
+| v2.39          | 2022-09-21                                 | Ganesh Vernekar (GitHub: @codesome)         |
+| v2.40          | 2022-11-02                                 | **searching for volunteer**                 |
+| v2.41          | 2022-12-14                                 | **searching for volunteer**                 |
 
 If you are interested in volunteering please create a pull request against the [prometheus/prometheus](https://github.com/prometheus/prometheus) repository and propose yourself for the release series of your choice.
 

VERSION

@@ -1 +1 @@
-2.37.0
+2.39.0

cmd/prometheus/main.go

@@ -37,7 +37,7 @@ import (
 	"github.com/go-kit/log"
 	"github.com/go-kit/log/level"
 	"github.com/grafana/regexp"
-	conntrack "github.com/mwitkow/go-conntrack"
+	"github.com/mwitkow/go-conntrack"
 	"github.com/oklog/run"
 	"github.com/prometheus/client_golang/prometheus"
 	"github.com/prometheus/common/model"
@@ -48,8 +48,8 @@ import (
 	toolkit_webflag "github.com/prometheus/exporter-toolkit/web/kingpinflag"
 	"go.uber.org/atomic"
 	"go.uber.org/automaxprocs/maxprocs"
-	kingpin "gopkg.in/alecthomas/kingpin.v2"
-	klog "k8s.io/klog"
+	"gopkg.in/alecthomas/kingpin.v2"
+	"k8s.io/klog"
 	klogv2 "k8s.io/klog/v2"
 
 	"github.com/prometheus/prometheus/config"
@@ -316,8 +316,10 @@ func main() {
 	serverOnlyFlag(a, "storage.tsdb.no-lockfile", "Do not create lockfile in data directory.").
 		Default("false").BoolVar(&cfg.tsdb.NoLockfile)
 
-	serverOnlyFlag(a, "storage.tsdb.allow-overlapping-blocks", "Allow overlapping blocks, which in turn enables vertical compaction and vertical query merge.").
-		Default("false").BoolVar(&cfg.tsdb.AllowOverlappingBlocks)
+	// TODO: Remove in Prometheus 3.0.
+	var b bool
+	serverOnlyFlag(a, "storage.tsdb.allow-overlapping-blocks", "[DEPRECATED] This flag has no effect. Overlapping blocks are enabled by default now.").
+		Default("true").Hidden().BoolVar(&b)
 
 	serverOnlyFlag(a, "storage.tsdb.wal-compression", "Compress the tsdb WAL.").
 		Hidden().Default("true").BoolVar(&cfg.tsdb.WALCompression)
@@ -464,6 +466,9 @@ func main() {
 		}
 		cfg.tsdb.MaxExemplars = int64(cfgFile.StorageConfig.ExemplarsConfig.MaxExemplars)
 	}
+	if cfgFile.StorageConfig.TSDBConfig != nil {
+		cfg.tsdb.OutOfOrderTimeWindow = cfgFile.StorageConfig.TSDBConfig.OutOfOrderTimeWindow
+	}
 
 	// Now that the validity of the config is established, set the config
 	// success metrics accordingly, although the config isn't really loaded
@@ -1009,7 +1014,6 @@ func main() {
 					"NoLockfile", cfg.tsdb.NoLockfile,
 					"RetentionDuration", cfg.tsdb.RetentionDuration,
 					"WALSegmentSize", cfg.tsdb.WALSegmentSize,
-					"AllowOverlappingBlocks", cfg.tsdb.AllowOverlappingBlocks,
 					"WALCompression", cfg.tsdb.WALCompression,
 				)
 
@@ -1536,12 +1540,12 @@ type tsdbOptions struct {
 	RetentionDuration              model.Duration
 	MaxBytes                       units.Base2Bytes
 	NoLockfile                     bool
-	AllowOverlappingBlocks         bool
 	WALCompression                 bool
 	HeadChunksWriteQueueSize       int
 	StripeSize                     int
 	MinBlockDuration               model.Duration
 	MaxBlockDuration               model.Duration
+	OutOfOrderTimeWindow           int64
 	EnableExemplarStorage          bool
 	MaxExemplars                   int64
 	EnableMemorySnapshotOnShutdown bool
@@ -1555,7 +1559,7 @@ func (opts tsdbOptions) ToTSDBOptions() tsdb.Options {
 		RetentionDuration:              int64(time.Duration(opts.RetentionDuration) / time.Millisecond),
 		MaxBytes:                       int64(opts.MaxBytes),
 		NoLockfile:                     opts.NoLockfile,
-		AllowOverlappingBlocks:         opts.AllowOverlappingBlocks,
+		AllowOverlappingCompaction:     true,
 		WALCompression:                 opts.WALCompression,
 		HeadChunksWriteQueueSize:       opts.HeadChunksWriteQueueSize,
 		StripeSize:                     opts.StripeSize,
@@ -1565,6 +1569,7 @@ func (opts tsdbOptions) ToTSDBOptions() tsdb.Options {
 		MaxExemplars:                   opts.MaxExemplars,
 		EnableMemorySnapshotOnShutdown: opts.EnableMemorySnapshotOnShutdown,
 		EnableNativeHistograms:         opts.EnableNativeHistograms,
+		OutOfOrderTimeWindow:           opts.OutOfOrderTimeWindow,
 	}
 }
 

cmd/prometheus/main_test.go

@@ -147,8 +147,8 @@ func TestSendAlerts(t *testing.T) {
 		{
 			in: []*rules.Alert{
 				{
-					Labels:      []labels.Label{{Name: "l1", Value: "v1"}},
-					Annotations: []labels.Label{{Name: "a2", Value: "v2"}},
+					Labels:      labels.FromStrings("l1", "v1"),
+					Annotations: labels.FromStrings("a2", "v2"),
 					ActiveAt:    time.Unix(1, 0),
 					FiredAt:     time.Unix(2, 0),
 					ValidUntil:  time.Unix(3, 0),
@@ -156,8 +156,8 @@ func TestSendAlerts(t *testing.T) {
 			},
 			exp: []*notifier.Alert{
 				{
-					Labels:       []labels.Label{{Name: "l1", Value: "v1"}},
-					Annotations:  []labels.Label{{Name: "a2", Value: "v2"}},
+					Labels:       labels.FromStrings("l1", "v1"),
+					Annotations:  labels.FromStrings("a2", "v2"),
 					StartsAt:     time.Unix(2, 0),
 					EndsAt:       time.Unix(3, 0),
 					GeneratorURL: "http://localhost:9090/graph?g0.expr=up&g0.tab=1",
@@ -167,8 +167,8 @@ func TestSendAlerts(t *testing.T) {
 		{
 			in: []*rules.Alert{
 				{
-					Labels:      []labels.Label{{Name: "l1", Value: "v1"}},
-					Annotations: []labels.Label{{Name: "a2", Value: "v2"}},
+					Labels:      labels.FromStrings("l1", "v1"),
+					Annotations: labels.FromStrings("a2", "v2"),
 					ActiveAt:    time.Unix(1, 0),
 					FiredAt:     time.Unix(2, 0),
 					ResolvedAt:  time.Unix(4, 0),
@@ -176,8 +176,8 @@ func TestSendAlerts(t *testing.T) {
 			},
 			exp: []*notifier.Alert{
 				{
-					Labels:       []labels.Label{{Name: "l1", Value: "v1"}},
-					Annotations:  []labels.Label{{Name: "a2", Value: "v2"}},
+					Labels:       labels.FromStrings("l1", "v1"),
+					Annotations:  labels.FromStrings("a2", "v2"),
 					StartsAt:     time.Unix(2, 0),
 					EndsAt:       time.Unix(4, 0),
 					GeneratorURL: "http://localhost:9090/graph?g0.expr=up&g0.tab=1",

cmd/promtool/main.go

@@ -42,7 +42,7 @@ import (
 	"github.com/prometheus/common/version"
 	"github.com/prometheus/exporter-toolkit/web"
 	"gopkg.in/alecthomas/kingpin.v2"
-	yaml "gopkg.in/yaml.v2"
+	"gopkg.in/yaml.v2"
 
 	dto "github.com/prometheus/client_model/go"
 	"github.com/prometheus/common/expfmt"

cmd/promtool/rules.go

@@ -165,7 +165,7 @@ func (importer *ruleImporter) importRule(ctx context.Context, ruleExpr, ruleName
 				lb.Set(labels.MetricName, ruleName)
 
 				for _, value := range sample.Values {
-					if err := app.add(ctx, lb.Labels(), timestamp.FromTime(value.Timestamp.Time()), float64(value.Value)); err != nil {
+					if err := app.add(ctx, lb.Labels(nil), timestamp.FromTime(value.Timestamp.Time()), float64(value.Value)); err != nil {
 						return fmt.Errorf("add: %w", err)
 					}
 				}

cmd/promtool/rules_test.go

@@ -118,7 +118,6 @@ func TestBackfillRuleIntegration(t *testing.T) {
 				}
 
 				opts := tsdb.DefaultOptions()
-				opts.AllowOverlappingBlocks = true
 				db, err := tsdb.Open(tmpDir, nil, nil, opts, nil)
 				require.NoError(t, err)
 
@@ -135,10 +134,7 @@ func TestBackfillRuleIntegration(t *testing.T) {
 					series := selectedSeries.At()
 					if len(series.Labels()) != 3 {
 						require.Equal(t, 2, len(series.Labels()))
-						x := labels.Labels{
-							labels.Label{Name: "__name__", Value: "grp2_rule1"},
-							labels.Label{Name: "name1", Value: "val1"},
-						}
+						x := labels.FromStrings("__name__", "grp2_rule1", "name1", "val1")
 						require.Equal(t, x, series.Labels())
 					} else {
 						require.Equal(t, 3, len(series.Labels()))
@@ -249,7 +245,6 @@ func TestBackfillLabels(t *testing.T) {
 	}
 
 	opts := tsdb.DefaultOptions()
-	opts.AllowOverlappingBlocks = true
 	db, err := tsdb.Open(tmpDir, nil, nil, opts, nil)
 	require.NoError(t, err)
 
@@ -260,10 +255,7 @@ func TestBackfillLabels(t *testing.T) {
 		selectedSeries := q.Select(false, nil, labels.MustNewMatcher(labels.MatchRegexp, "", ".*"))
 		for selectedSeries.Next() {
 			series := selectedSeries.At()
-			expectedLabels := labels.Labels{
-				labels.Label{Name: "__name__", Value: "rulename"},
-				labels.Label{Name: "name1", Value: "value-from-rule"},
-			}
+			expectedLabels := labels.FromStrings("__name__", "rulename", "name1", "value-from-rule")
 			require.Equal(t, expectedLabels, series.Labels())
 		}
 		require.NoError(t, selectedSeries.Err())

cmd/promtool/sd_test.go

@@ -51,20 +51,20 @@ func TestSDCheckResult(t *testing.T) {
 
 	expectedSDCheckResult := []sdCheckResult{
 		{
-			DiscoveredLabels: labels.Labels{
-				labels.Label{Name: "__address__", Value: "localhost:8080"},
-				labels.Label{Name: "__scrape_interval__", Value: "1m"},
-				labels.Label{Name: "__scrape_timeout__", Value: "10s"},
-				labels.Label{Name: "foo", Value: "bar"},
-			},
-			Labels: labels.Labels{
-				labels.Label{Name: "__address__", Value: "localhost:8080"},
-				labels.Label{Name: "__scrape_interval__", Value: "1m"},
-				labels.Label{Name: "__scrape_timeout__", Value: "10s"},
-				labels.Label{Name: "foo", Value: "bar"},
-				labels.Label{Name: "instance", Value: "localhost:8080"},
-				labels.Label{Name: "newfoo", Value: "bar"},
-			},
+			DiscoveredLabels: labels.FromStrings(
+				"__address__", "localhost:8080",
+				"__scrape_interval__", "1m",
+				"__scrape_timeout__", "10s",
+				"foo", "bar",
+			),
+			Labels: labels.FromStrings(
+				"__address__", "localhost:8080",
+				"__scrape_interval__", "1m",
+				"__scrape_timeout__", "10s",
+				"foo", "bar",
+				"instance", "localhost:8080",
+				"newfoo", "bar",
+			),
 			Error: nil,
 		},
 	}

cmd/promtool/tsdb.go

@@ -598,7 +598,7 @@ func analyzeCompaction(block tsdb.BlockReader, indexr tsdb.IndexReader) (err err
 
 		for _, chk := range chks {
 			// Load the actual data of the chunk.
-			chk, err := chunkr.Chunk(chk.Ref)
+			chk, err := chunkr.Chunk(chk)
 			if err != nil {
 				return err
 			}

cmd/promtool/unittest.go

@@ -27,7 +27,7 @@ import (
 
 	"github.com/go-kit/log"
 	"github.com/prometheus/common/model"
-	yaml "gopkg.in/yaml.v2"
+	"gopkg.in/yaml.v2"
 
 	"github.com/prometheus/prometheus/model/labels"
 	"github.com/prometheus/prometheus/promql"

config/config.go

@@ -29,7 +29,7 @@ import (
 	"github.com/prometheus/common/config"
 	"github.com/prometheus/common/model"
 	"github.com/prometheus/common/sigv4"
-	yaml "gopkg.in/yaml.v2"
+	"gopkg.in/yaml.v2"
 
 	"github.com/prometheus/prometheus/discovery"
 	"github.com/prometheus/prometheus/model/labels"
@@ -501,9 +501,37 @@ func (c *ScrapeConfig) MarshalYAML() (interface{}, error) {
 
 // StorageConfig configures runtime reloadable configuration options.
 type StorageConfig struct {
+	TSDBConfig      *TSDBConfig      `yaml:"tsdb,omitempty"`
 	ExemplarsConfig *ExemplarsConfig `yaml:"exemplars,omitempty"`
 }
 
+// TSDBConfig configures runtime reloadable configuration options.
+type TSDBConfig struct {
+	// OutOfOrderTimeWindow sets how long back in time an out-of-order sample can be inserted
+	// into the TSDB. This flag is typically set while unmarshaling the configuration file and translating
+	// OutOfOrderTimeWindowFlag's duration. The unit of this flag is expected to be the same as any
+	// other timestamp in the TSDB.
+	OutOfOrderTimeWindow int64
+
+	// OutOfOrderTimeWindowFlag holds the parsed duration from the config file.
+	// During unmarshall, this is converted into milliseconds and stored in OutOfOrderTimeWindow.
+	// This should not be used directly and must be converted into OutOfOrderTimeWindow.
+	OutOfOrderTimeWindowFlag model.Duration `yaml:"out_of_order_time_window,omitempty"`
+}
+
+// UnmarshalYAML implements the yaml.Unmarshaler interface.
+func (t *TSDBConfig) UnmarshalYAML(unmarshal func(interface{}) error) error {
+	*t = TSDBConfig{}
+	type plain TSDBConfig
+	if err := unmarshal((*plain)(t)); err != nil {
+		return err
+	}
+
+	t.OutOfOrderTimeWindow = time.Duration(t.OutOfOrderTimeWindowFlag).Milliseconds()
+
+	return nil
+}
+
 type TracingClientType string
 
 const (

config/config_test.go

@@ -74,10 +74,7 @@ var expectedConf = &Config{
 		EvaluationInterval: model.Duration(30 * time.Second),
 		QueryLogFile:       "",
 
-		ExternalLabels: labels.Labels{
-			{Name: "foo", Value: "bar"},
-			{Name: "monitor", Value: "codelab"},
-		},
+		ExternalLabels: labels.FromStrings("foo", "bar", "monitor", "codelab"),
 	},
 
 	RuleFiles: []string{
@@ -1098,6 +1095,12 @@ var expectedConf = &Config{
 			},
 		},
 	},
+	StorageConfig: StorageConfig{
+		TSDBConfig: &TSDBConfig{
+			OutOfOrderTimeWindow:     30 * time.Minute.Milliseconds(),
+			OutOfOrderTimeWindowFlag: model.Duration(30 * time.Minute),
+		},
+	},
 	TracingConfig: TracingConfig{
 		Endpoint:    "localhost:4317",
 		ClientType:  TracingClientGRPC,
@@ -1655,28 +1658,16 @@ func TestExpandExternalLabels(t *testing.T) {
 
 	c, err := LoadFile("testdata/external_labels.good.yml", false, false, log.NewNopLogger())
 	require.NoError(t, err)
-	require.Equal(t, labels.Label{Name: "bar", Value: "foo"}, c.GlobalConfig.ExternalLabels[0])
-	require.Equal(t, labels.Label{Name: "baz", Value: "foo${TEST}bar"}, c.GlobalConfig.ExternalLabels[1])
-	require.Equal(t, labels.Label{Name: "foo", Value: "${TEST}"}, c.GlobalConfig.ExternalLabels[2])
-	require.Equal(t, labels.Label{Name: "qux", Value: "foo$${TEST}"}, c.GlobalConfig.ExternalLabels[3])
-	require.Equal(t, labels.Label{Name: "xyz", Value: "foo$$bar"}, c.GlobalConfig.ExternalLabels[4])
+	require.Equal(t, labels.FromStrings("bar", "foo", "baz", "foo${TEST}bar", "foo", "${TEST}", "qux", "foo$${TEST}", "xyz", "foo$$bar"), c.GlobalConfig.ExternalLabels)
 
 	c, err = LoadFile("testdata/external_labels.good.yml", false, true, log.NewNopLogger())
 	require.NoError(t, err)
-	require.Equal(t, labels.Label{Name: "bar", Value: "foo"}, c.GlobalConfig.ExternalLabels[0])
-	require.Equal(t, labels.Label{Name: "baz", Value: "foobar"}, c.GlobalConfig.ExternalLabels[1])
-	require.Equal(t, labels.Label{Name: "foo", Value: ""}, c.GlobalConfig.ExternalLabels[2])
-	require.Equal(t, labels.Label{Name: "qux", Value: "foo${TEST}"}, c.GlobalConfig.ExternalLabels[3])
-	require.Equal(t, labels.Label{Name: "xyz", Value: "foo$bar"}, c.GlobalConfig.ExternalLabels[4])
+	require.Equal(t, labels.FromStrings("bar", "foo", "baz", "foobar", "foo", "", "qux", "foo${TEST}", "xyz", "foo$bar"), c.GlobalConfig.ExternalLabels)
 
 	os.Setenv("TEST", "TestValue")
 	c, err = LoadFile("testdata/external_labels.good.yml", false, true, log.NewNopLogger())
 	require.NoError(t, err)
-	require.Equal(t, labels.Label{Name: "bar", Value: "foo"}, c.GlobalConfig.ExternalLabels[0])
-	require.Equal(t, labels.Label{Name: "baz", Value: "fooTestValuebar"}, c.GlobalConfig.ExternalLabels[1])
-	require.Equal(t, labels.Label{Name: "foo", Value: "TestValue"}, c.GlobalConfig.ExternalLabels[2])
-	require.Equal(t, labels.Label{Name: "qux", Value: "foo${TEST}"}, c.GlobalConfig.ExternalLabels[3])
-	require.Equal(t, labels.Label{Name: "xyz", Value: "foo$bar"}, c.GlobalConfig.ExternalLabels[4])
+	require.Equal(t, labels.FromStrings("bar", "foo", "baz", "fooTestValuebar", "foo", "TestValue", "qux", "foo${TEST}", "xyz", "foo$bar"), c.GlobalConfig.ExternalLabels)
 }
 
 func TestEmptyGlobalBlock(t *testing.T) {

config/testdata/conf.good.yml

@@ -391,6 +391,10 @@ alerting:
             - "1.2.3.5:9093"
             - "1.2.3.6:9093"
 
+storage:
+  tsdb:
+    out_of_order_time_window: 30m
+
 tracing:
   endpoint: "localhost:4317"
   client_type: "grpc"

discovery/aws/ec2.go

@@ -57,6 +57,7 @@ const (
 	ec2LabelPrivateIP         = ec2Label + "private_ip"
 	ec2LabelPublicDNS         = ec2Label + "public_dns_name"
 	ec2LabelPublicIP          = ec2Label + "public_ip"
+	ec2LabelRegion            = ec2Label + "region"
 	ec2LabelSubnetID          = ec2Label + "subnet_id"
 	ec2LabelTag               = ec2Label + "tag_"
 	ec2LabelVPCID             = ec2Label + "vpc_id"
@@ -242,6 +243,7 @@ func (d *EC2Discovery) refresh(ctx context.Context) ([]*targetgroup.Group, error
 
 				labels := model.LabelSet{
 					ec2LabelInstanceID: model.LabelValue(*inst.InstanceId),
+					ec2LabelRegion:     model.LabelValue(d.cfg.Region),
 				}
 
 				if r.OwnerId != nil {

discovery/aws/lightsail.go

@@ -49,6 +49,7 @@ const (
 	lightsailLabelIPv6Addresses       = lightsailLabel + "ipv6_addresses"
 	lightsailLabelPrivateIP           = lightsailLabel + "private_ip"
 	lightsailLabelPublicIP            = lightsailLabel + "public_ip"
+	lightsailLabelRegion              = lightsailLabel + "region"
 	lightsailLabelTag                 = lightsailLabel + "tag_"
 	lightsailLabelSeparator           = ","
 )
@@ -199,6 +200,7 @@ func (d *LightsailDiscovery) refresh(ctx context.Context) ([]*targetgroup.Group,
 			lightsailLabelInstanceState:       model.LabelValue(*inst.State.Name),
 			lightsailLabelInstanceSupportCode: model.LabelValue(*inst.SupportCode),
 			lightsailLabelPrivateIP:           model.LabelValue(*inst.PrivateIpAddress),
+			lightsailLabelRegion:              model.LabelValue(d.cfg.Region),
 		}
 
 		addr := net.JoinHostPort(*inst.PrivateIpAddress, fmt.Sprintf("%d", d.cfg.Port))

discovery/dns/dns.go

@@ -252,22 +252,22 @@ func (d *Discovery) refreshOne(ctx context.Context, name string, ch chan<- *targ
 //
 // There are three possible outcomes:
 //
-// 1. One of the permutations of the given name is recognized as
-//    "valid" by the DNS, in which case we consider ourselves "done"
-//    and that answer is returned.  Note that, due to the way the DNS
-//    handles "name has resource records, but none of the specified type",
-//    the answer received may have an empty set of results.
+//  1. One of the permutations of the given name is recognized as
+//     "valid" by the DNS, in which case we consider ourselves "done"
+//     and that answer is returned.  Note that, due to the way the DNS
+//     handles "name has resource records, but none of the specified type",
+//     the answer received may have an empty set of results.
 //
-// 2.  All of the permutations of the given name are responded to by one of
-//    the servers in the "nameservers" list with the answer "that name does
-//    not exist" (NXDOMAIN).  In that case, it can be considered
-//    pseudo-authoritative that there are no records for that name.
+//  2. All of the permutations of the given name are responded to by one of
+//     the servers in the "nameservers" list with the answer "that name does
+//     not exist" (NXDOMAIN).  In that case, it can be considered
+//     pseudo-authoritative that there are no records for that name.
 //
-// 3.  One or more of the names was responded to by all servers with some
-//    sort of error indication.  In that case, we can't know if, in fact,
-//    there are records for the name or not, so whatever state the
-//    configuration is in, we should keep it that way until we know for
-//    sure (by, presumably, all the names getting answers in the future).
+//  3. One or more of the names was responded to by all servers with some
+//     sort of error indication.  In that case, we can't know if, in fact,
+//     there are records for the name or not, so whatever state the
+//     configuration is in, we should keep it that way until we know for
+//     sure (by, presumably, all the names getting answers in the future).
 //
 // Outcomes 1 and 2 are indicated by a valid response message (possibly an
 // empty one) and no error.  Outcome 3 is indicated by an error return.  The
@@ -313,11 +313,11 @@ func lookupWithSearchPath(name string, qtype uint16, logger log.Logger) (*dns.Ms
 //
 // A "viable answer" is one which indicates either:
 //
-// 1. "yes, I know that name, and here are its records of the requested type"
-//    (RCODE==SUCCESS, ANCOUNT > 0);
-// 2. "yes, I know that name, but it has no records of the requested type"
-//    (RCODE==SUCCESS, ANCOUNT==0); or
-// 3. "I know that name doesn't exist" (RCODE==NXDOMAIN).
+//  1. "yes, I know that name, and here are its records of the requested type"
+//     (RCODE==SUCCESS, ANCOUNT > 0);
+//  2. "yes, I know that name, but it has no records of the requested type"
+//     (RCODE==SUCCESS, ANCOUNT==0); or
+//  3. "I know that name doesn't exist" (RCODE==NXDOMAIN).
 //
 // A non-viable answer is "anything else", which encompasses both various
 // system-level problems (like network timeouts) and also

discovery/file/file.go

@@ -32,7 +32,7 @@ import (
 	"github.com/prometheus/client_golang/prometheus"
 	"github.com/prometheus/common/config"
 	"github.com/prometheus/common/model"
-	yaml "gopkg.in/yaml.v2"
+	"gopkg.in/yaml.v2"
 
 	"github.com/prometheus/prometheus/discovery"
 	"github.com/prometheus/prometheus/discovery/targetgroup"

discovery/file/file_test.go

@@ -308,6 +308,7 @@ func TestInitialUpdate(t *testing.T) {
 		"fixtures/valid.yml",
 		"fixtures/valid.json",
 	} {
+		tc := tc
 		t.Run(tc, func(t *testing.T) {
 			t.Parallel()
 

discovery/gce/gce.go

@@ -25,7 +25,7 @@ import (
 	"github.com/go-kit/log"
 	"github.com/prometheus/common/model"
 	"golang.org/x/oauth2/google"
-	compute "google.golang.org/api/compute/v1"
+	"google.golang.org/api/compute/v1"
 	"google.golang.org/api/option"
 
 	"github.com/prometheus/prometheus/discovery"

discovery/kubernetes/kubernetes.go

@@ -336,6 +336,7 @@ func New(l log.Logger, conf *SDConfig) (*Discovery, error) {
 	}
 
 	kcfg.UserAgent = userAgent
+	kcfg.ContentType = "application/vnd.kubernetes.protobuf"
 
 	c, err := kubernetes.NewForConfig(kcfg)
 	if err != nil {

discovery/kubernetes/service.go

@@ -153,6 +153,7 @@ const (
 	servicePortNumberLabel         = metaLabelPrefix + "service_port_number"
 	servicePortProtocolLabel       = metaLabelPrefix + "service_port_protocol"
 	serviceClusterIPLabel          = metaLabelPrefix + "service_cluster_ip"
+	serviceLoadBalancerIP          = metaLabelPrefix + "service_loadbalancer_ip"
 	serviceExternalNameLabel       = metaLabelPrefix + "service_external_name"
 	serviceType                    = metaLabelPrefix + "service_type"
 )
@@ -201,6 +202,10 @@ func (s *Service) buildService(svc *apiv1.Service) *targetgroup.Group {
 			labelSet[serviceClusterIPLabel] = lv(svc.Spec.ClusterIP)
 		}
 
+		if svc.Spec.Type == apiv1.ServiceTypeLoadBalancer {
+			labelSet[serviceLoadBalancerIP] = lv(svc.Spec.LoadBalancerIP)
+		}
+
 		tg.Targets = append(tg.Targets, labelSet)
 	}
 

discovery/kubernetes/service_test.go

@@ -96,6 +96,27 @@ func makeExternalService() *v1.Service {
 	}
 }
 
+func makeLoadBalancerService() *v1.Service {
+	return &v1.Service{
+		ObjectMeta: metav1.ObjectMeta{
+			Name:      "testservice-loadbalancer",
+			Namespace: "default",
+		},
+		Spec: v1.ServiceSpec{
+			Ports: []v1.ServicePort{
+				{
+					Name:     "testport",
+					Protocol: v1.ProtocolTCP,
+					Port:     int32(31900),
+				},
+			},
+			Type:           v1.ServiceTypeLoadBalancer,
+			LoadBalancerIP: "127.0.0.1",
+			ClusterIP:      "10.0.0.1",
+		},
+	}
+}
+
 func TestServiceDiscoveryAdd(t *testing.T) {
 	n, c := makeDiscovery(RoleService, NamespaceDiscovery{})
 
@@ -106,8 +127,10 @@ func TestServiceDiscoveryAdd(t *testing.T) {
 			c.CoreV1().Services(obj.Namespace).Create(context.Background(), obj, metav1.CreateOptions{})
 			obj = makeExternalService()
 			c.CoreV1().Services(obj.Namespace).Create(context.Background(), obj, metav1.CreateOptions{})
+			obj = makeLoadBalancerService()
+			c.CoreV1().Services(obj.Namespace).Create(context.Background(), obj, metav1.CreateOptions{})
 		},
-		expectedMaxItems: 2,
+		expectedMaxItems: 3,
 		expectedRes: map[string]*targetgroup.Group{
 			"svc/default/testservice": {
 				Targets: []model.LabelSet{
@@ -143,6 +166,24 @@ func TestServiceDiscoveryAdd(t *testing.T) {
 				},
 				Source: "svc/default/testservice-external",
 			},
+			"svc/default/testservice-loadbalancer": {
+				Targets: []model.LabelSet{
+					{
+						"__meta_kubernetes_service_port_protocol": "TCP",
+						"__address__":                               "testservice-loadbalancer.default.svc:31900",
+						"__meta_kubernetes_service_type":            "LoadBalancer",
+						"__meta_kubernetes_service_port_name":       "testport",
+						"__meta_kubernetes_service_port_number":     "31900",
+						"__meta_kubernetes_service_cluster_ip":      "10.0.0.1",
+						"__meta_kubernetes_service_loadbalancer_ip": "127.0.0.1",
+					},
+				},
+				Labels: model.LabelSet{
+					"__meta_kubernetes_service_name": "testservice-loadbalancer",
+					"__meta_kubernetes_namespace":    "default",
+				},
+				Source: "svc/default/testservice-loadbalancer",
+			},
 		},
 	}.Run(t)
 }

discovery/openstack/openstack.go

@@ -23,7 +23,7 @@ import (
 	"github.com/go-kit/log"
 	"github.com/gophercloud/gophercloud"
 	"github.com/gophercloud/gophercloud/openstack"
-	conntrack "github.com/mwitkow/go-conntrack"
+	"github.com/mwitkow/go-conntrack"
 	"github.com/prometheus/common/config"
 	"github.com/prometheus/common/model"
 

discovery/puppetdb/puppetdb.go

@@ -40,6 +40,7 @@ import (
 
 const (
 	pdbLabel            = model.MetaLabelPrefix + "puppetdb_"
+	pdbLabelQuery       = pdbLabel + "query"
 	pdbLabelCertname    = pdbLabel + "certname"
 	pdbLabelResource    = pdbLabel + "resource"
 	pdbLabelType        = pdbLabel + "type"
@@ -215,6 +216,7 @@ func (d *Discovery) refresh(ctx context.Context) ([]*targetgroup.Group, error) {
 
 	for _, resource := range resources {
 		labels := model.LabelSet{
+			pdbLabelQuery:       model.LabelValue(d.query),
 			pdbLabelCertname:    model.LabelValue(resource.Certname),
 			pdbLabelResource:    model.LabelValue(resource.Resource),
 			pdbLabelType:        model.LabelValue(resource.Type),

discovery/puppetdb/puppetdb_test.go

@@ -91,6 +91,7 @@ func TestPuppetDBRefresh(t *testing.T) {
 			Targets: []model.LabelSet{
 				{
 					model.AddressLabel:                             model.LabelValue("edinburgh.example.com:80"),
+					model.LabelName("__meta_puppetdb_query"):       model.LabelValue("vhosts"),
 					model.LabelName("__meta_puppetdb_certname"):    model.LabelValue("edinburgh.example.com"),
 					model.LabelName("__meta_puppetdb_environment"): model.LabelValue("prod"),
 					model.LabelName("__meta_puppetdb_exported"):    model.LabelValue("false"),
@@ -131,6 +132,7 @@ func TestPuppetDBRefreshWithParameters(t *testing.T) {
 			Targets: []model.LabelSet{
 				{
 					model.AddressLabel:                                           model.LabelValue("edinburgh.example.com:80"),
+					model.LabelName("__meta_puppetdb_query"):                     model.LabelValue("vhosts"),
 					model.LabelName("__meta_puppetdb_certname"):                  model.LabelValue("edinburgh.example.com"),
 					model.LabelName("__meta_puppetdb_environment"):               model.LabelValue("prod"),
 					model.LabelName("__meta_puppetdb_exported"):                  model.LabelValue("false"),

discovery/targetgroup/targetgroup_test.go

@@ -29,12 +29,12 @@ func TestTargetGroupStrictJSONUnmarshal(t *testing.T) {
 		expectedGroup Group
 	}{
 		{
-			json: `	{"labels": {},"targets": []}`,
+			json:          `{"labels": {},"targets": []}`,
 			expectedReply: nil,
 			expectedGroup: Group{Targets: []model.LabelSet{}, Labels: model.LabelSet{}},
 		},
 		{
-			json: `	{"labels": {"my":"label"},"targets": ["localhost:9090","localhost:9091"]}`,
+			json:          `{"labels": {"my":"label"},"targets": ["localhost:9090","localhost:9091"]}`,
 			expectedReply: nil,
 			expectedGroup: Group{Targets: []model.LabelSet{
 				{"__address__": "localhost:9090"},
@@ -42,11 +42,11 @@ func TestTargetGroupStrictJSONUnmarshal(t *testing.T) {
 			}, Labels: model.LabelSet{"my": "label"}},
 		},
 		{
-			json: `	{"label": {},"targets": []}`,
+			json:          `{"label": {},"targets": []}`,
 			expectedReply: errors.New("json: unknown field \"label\""),
 		},
 		{
-			json: `	{"labels": {},"target": []}`,
+			json:          `{"labels": {},"target": []}`,
 			expectedReply: errors.New("json: unknown field \"target\""),
 		},
 	}

discovery/triton/triton.go

@@ -25,7 +25,7 @@ import (
 	"time"
 
 	"github.com/go-kit/log"
-	conntrack "github.com/mwitkow/go-conntrack"
+	"github.com/mwitkow/go-conntrack"
 	"github.com/prometheus/common/config"
 	"github.com/prometheus/common/model"
 

docs/configuration/configuration.md

@@ -99,6 +99,7 @@ remote_read:
 
 # Storage related settings that are runtime reloadable.
 storage:
+  [ tsdb: <tsdb> ]
   [ exemplars: <exemplars> ]
 
 # Configures exporting traces.
@@ -457,7 +458,7 @@ subscription_id: <string>
 # Optional client secret. Only required with authentication_method OAuth.
 [ client_secret: <secret> ]
 
-# Optional resource group name. Limits discovery to this resource group. 
+# Optional resource group name. Limits discovery to this resource group.
 [ resource_group: <string> ]
 
 # Refresh interval to re-read the instance list.
@@ -1016,6 +1017,7 @@ The following meta labels are available on targets during [relabeling](#relabel_
 * `__meta_ec2_private_ip`: the private IP address of the instance, if present
 * `__meta_ec2_public_dns_name`: the public DNS name of the instance, if available
 * `__meta_ec2_public_ip`: the public IP address of the instance, if available
+* `__meta_ec2_region`: the region of the instance
 * `__meta_ec2_subnet_id`: comma separated list of subnets IDs in which the instance is running, if available
 * `__meta_ec2_tag_<tagkey>`: each tag value of the instance
 * `__meta_ec2_vpc_id`: the ID of the VPC in which the instance is running, if available
@@ -1184,6 +1186,7 @@ The resource address is the `certname` of the resource and can be changed during
 
 The following meta labels are available on targets during [relabeling](#relabel_config):
 
+* `__meta_puppetdb_query`: the Puppet Query Language (PQL) query
 * `__meta_puppetdb_certname`: the name of the node associated with the resource
 * `__meta_puppetdb_resource`: a SHA-1 hash of the resource’s type, title, and parameters, for identification
 * `__meta_puppetdb_type`: the resource type
@@ -1502,8 +1505,8 @@ Example response body:
 ```
 
 The endpoint is queried periodically at the specified refresh interval.
-The `prometheus_sd_http_failures_total` counter metric tracks the number of 
-refresh failures. 
+The `prometheus_sd_http_failures_total` counter metric tracks the number of
+refresh failures.
 
 Each target has a meta label `__meta_url` during the
 [relabeling phase](#relabel_config). Its value is set to the
@@ -1565,7 +1568,7 @@ following meta labels are available on all targets during
 [relabeling](#relabel_config):
 
 * `__meta_ionos_server_availability_zone`: the availability zone of the server
-* `__meta_ionos_server_boot_cdrom_id`: the ID of the CD-ROM the server is booted 
+* `__meta_ionos_server_boot_cdrom_id`: the ID of the CD-ROM the server is booted
   from
 * `__meta_ionos_server_boot_image_id`: the ID of the boot image or snapshot the
   server is booted from
@@ -1678,6 +1681,7 @@ Available meta labels:
 * `__meta_kubernetes_service_annotation_<annotationname>`: Each annotation from the service object.
 * `__meta_kubernetes_service_annotationpresent_<annotationname>`: "true" for each annotation of the service object.
 * `__meta_kubernetes_service_cluster_ip`: The cluster IP address of the service. (Does not apply to services of type ExternalName)
+* `__meta_kubernetes_service_loadbalancer_ip`: The IP address of the loadbalancer. (Applies to services of type LoadBalancer)
 * `__meta_kubernetes_service_external_name`: The DNS name of the service. (Applies to services of type ExternalName)
 * `__meta_kubernetes_service_label_<labelname>`: Each label from the service object.
 * `__meta_kubernetes_service_labelpresent_<labelname>`: `true` for each label of the service object.
@@ -1704,6 +1708,7 @@ Available meta labels:
 * `__meta_kubernetes_pod_annotationpresent_<annotationname>`: `true` for each annotation from the pod object.
 * `__meta_kubernetes_pod_container_init`: `true` if the container is an [InitContainer](https://kubernetes.io/docs/concepts/workloads/pods/init-containers/)
 * `__meta_kubernetes_pod_container_name`: Name of the container the target address points to.
+* `__meta_kubernetes_pod_container_image`: The image the container is using.
 * `__meta_kubernetes_pod_container_port_name`: Name of the container port.
 * `__meta_kubernetes_pod_container_port_number`: Number of the container port.
 * `__meta_kubernetes_pod_container_port_protocol`: Protocol of the container port.
@@ -1866,8 +1871,8 @@ namespaces:
 
 # Optional metadata to attach to discovered targets. If omitted, no additional metadata is attached.
 attach_metadata:
-# Attaches node metadata to discovered targets. Valid for roles: pod, endpoints, endpointslice. 
-# When set to true, Prometheus must have permissions to get Nodes. 
+# Attaches node metadata to discovered targets. Valid for roles: pod, endpoints, endpointslice.
+# When set to true, Prometheus must have permissions to get Nodes.
   [ node: <boolean> | default = false ]
 ```
 
@@ -1965,6 +1970,7 @@ The following meta labels are available on targets during [relabeling](#relabel_
 * `__meta_lightsail_ipv6_addresses`: comma separated list of IPv6 addresses assigned to the instance's network interfaces, if present
 * `__meta_lightsail_private_ip`: the private IP address of the instance
 * `__meta_lightsail_public_ip`: the public IP address of the instance, if available
+* `__meta_lightsail_region`: the region of the instance
 * `__meta_lightsail_tag_<tagkey>`: each tag value of the instance
 
 See below for the configuration options for Lightsail discovery:
@@ -2989,38 +2995,6 @@ relabel_configs:
   [ - <relabel_config> ... ]
 ```
 
-### `<tracing_config>`
-
-`tracing_config` configures exporting traces from Prometheus to a tracing backend via the OTLP protocol. Tracing is currently an **experimental** feature and could change in the future.
-
-```yaml
-# Client used to export the traces. Options are 'http' or 'grpc'.
-[ client_type: <string> | default = grpc ]
-
-# Endpoint to send the traces to. Should be provided in format <host>:<port>.
-[ endpoint: <string> ]
-
-# Sets the probability a given trace will be sampled. Must be a float from 0 through 1.
-[ sampling_fraction: <float> | default = 0 ]
-
-# If disabled, the client will use a secure connection.
-[ insecure: <boolean> | default = false ]
-
-# Key-value pairs to be used as headers associated with gRPC or HTTP requests.
-headers:
-  [ <string>: <string> ... ]
-
-# Compression key for supported compression types. Supported compression: gzip.
-[ compression: <string> ]
-
-# Maximum time the exporter will wait for each batch export.
-[ timeout: <duration> | default = 10s ]
-
-# TLS configuration.
-tls_config:
-  [ <tls_config> ]
-```
-
 ### `<remote_write>`
 
 `write_relabel_configs` is relabeling applied to samples before sending them
@@ -3225,6 +3199,25 @@ There is a list of
 [integrations](https://prometheus.io/docs/operating/integrations/#remote-endpoints-and-storage)
 with this feature.
 
+### `<tsdb>`
+
+`tsdb` lets you configure the runtime-reloadable configuration settings of the TSDB.
+
+NOTE: Out-of-order ingestion is an experimental feature, but you do not need any additional flag to enable it. Setting `out_of_order_time_window` to a positive duration enables it.
+
+```yaml
+# Configures how old an out-of-order/out-of-bounds sample can be w.r.t. the TSDB max time.
+# An out-of-order/out-of-bounds sample is ingested into the TSDB as long as the timestamp
+# of the sample is >= TSDB.MaxTime-out_of_order_time_window.
+#
+# When out_of_order_time_window is >0, the errors out-of-order and out-of-bounds are
+# combined into a single error called 'too-old'; a sample is either (a) ingestible
+# into the TSDB, i.e. it is an in-order sample or an out-of-order/out-of-bounds sample
+# that is within the out-of-order window, or (b) too-old, i.e. not in-order
+# and before the out-of-order window.
+[ out_of_order_time_window: <duration> | default = 0s ]
+```
+
 ### `<exemplars>`
 
 Note that exemplar storage is still considered experimental and must be enabled via `--enable-feature=exemplar-storage`.
@@ -3233,3 +3226,35 @@ Note that exemplar storage is still considered experimental and must be enabled
 # Configures the maximum size of the circular buffer used to store exemplars for all series. Resizable during runtime.
 [ max_exemplars: <int> | default = 100000 ]
 ```
+
+### `<tracing_config>`
+
+`tracing_config` configures exporting traces from Prometheus to a tracing backend via the OTLP protocol. Tracing is currently an **experimental** feature and could change in the future.
+
+```yaml
+# Client used to export the traces. Options are 'http' or 'grpc'.
+[ client_type: <string> | default = grpc ]
+
+# Endpoint to send the traces to. Should be provided in format <host>:<port>.
+[ endpoint: <string> ]
+
+# Sets the probability a given trace will be sampled. Must be a float from 0 through 1.
+[ sampling_fraction: <float> | default = 0 ]
+
+# If disabled, the client will use a secure connection.
+[ insecure: <boolean> | default = false ]
+
+# Key-value pairs to be used as headers associated with gRPC or HTTP requests.
+headers:
+  [ <string>: <string> ... ]
+
+# Compression key for supported compression types. Supported compression: gzip.
+[ compression: <string> ]
+
+# Maximum time the exporter will wait for each batch export.
+[ timeout: <duration> | default = 10s ]
+
+# TLS configuration.
+tls_config:
+  [ <tls_config> ]
+```

docs/management_api.md

@@ -12,6 +12,7 @@ Prometheus provides a set of management APIs to facilitate automation and integr
 
 ```
 GET /-/healthy
+HEAD /-/healthy
 ```
 
 This endpoint always returns 200 and should be used to check Prometheus health.
@@ -21,6 +22,7 @@ This endpoint always returns 200 and should be used to check Prometheus health.
 
 ```
 GET /-/ready
+HEAD /-/ready
 ```
 
 This endpoint returns 200 when Prometheus is ready to serve traffic (i.e. respond to queries).

docs/querying/api.md

@@ -779,7 +779,7 @@ curl -G http://localhost:9091/api/v1/targets/metadata \
 
 ## Querying metric metadata
 
-It returns metadata about metrics currently scrapped from targets. However, it does not provide any target information.
+It returns metadata about metrics currently scraped from targets. However, it does not provide any target information.
 This is considered **experimental** and might change in the future.
 
 ```

docs/querying/functions.md

@@ -136,6 +136,8 @@ delta(cpu_temp_celsius{host="zeus"}[2h])
 
 `deriv(v range-vector)` calculates the per-second derivative of the time series in a range
 vector `v`, using [simple linear regression](https://en.wikipedia.org/wiki/Simple_linear_regression).
+The range vector must have at least two samples in order to perform the calculation. When `+Inf` or 
+`-Inf` are found in the range vector, the slope and offset value calculated will be `NaN`.
 
 `deriv` should only be used with gauges.
 
@@ -362,6 +364,9 @@ January etc.
 `predict_linear(v range-vector, t scalar)` predicts the value of time series
 `t` seconds from now, based on the range vector `v`, using [simple linear
 regression](https://en.wikipedia.org/wiki/Simple_linear_regression).
+The range vector must have at least two samples in order to perform the 
+calculation. When `+Inf` or `-Inf` are found in the range vector, 
+the slope and offset value calculated will be `NaN`.
 
 `predict_linear` should only be used with gauges.
 

docs/querying/remote_read_api.md

@@ -0,0 +1,87 @@
+---
+title: Remote Read API
+sort_rank: 7
+---
+
+# Remote Read API
+
+This is not currently considered par of the stable API and is subject to change
+even between non-major version releases of Prometheus.
+
+## Format overview
+
+The API response format is JSON. Every successful API request returns a `2xx`
+status code.
+
+Invalid requests that reach the API handlers return a JSON error object
+and one of the following HTTP response codes:
+
+- `400 Bad Request` when parameters are missing or incorrect.
+- `422 Unprocessable Entity` when an expression can't be executed
+  ([RFC4918](https://tools.ietf.org/html/rfc4918#page-78)).
+- `503 Service Unavailable` when queries time out or abort.
+
+Other non-`2xx` codes may be returned for errors occurring before the API
+endpoint is reached.
+
+An array of warnings may be returned if there are errors that do
+not inhibit the request execution. All of the data that was successfully
+collected will be returned in the data field.
+
+The JSON response envelope format is as follows:
+
+```
+{
+  "status": "success" | "error",
+  "data": <data>,
+
+  // Only set if status is "error". The data field may still hold
+  // additional data.
+  "errorType": "<string>",
+  "error": "<string>",
+
+  // Only if there were warnings while executing the request.
+  // There will still be data in the data field.
+  "warnings": ["<string>"]
+}
+```
+
+Generic placeholders are defined as follows:
+
+* `<rfc3339 | unix_timestamp>`: Input timestamps may be provided either in
+[RFC3339](https://www.ietf.org/rfc/rfc3339.txt) format or as a Unix timestamp
+in seconds, with optional decimal places for sub-second precision. Output
+timestamps are always represented as Unix timestamps in seconds.
+* `<series_selector>`: Prometheus [time series
+selectors](basics.md#time-series-selectors) like `http_requests_total` or
+`http_requests_total{method=~"(GET|POST)"}` and need to be URL-encoded.
+* `<duration>`: [Prometheus duration strings](basics.md#time_durations).
+For example, `5m` refers to a duration of 5 minutes.
+* `<bool>`: boolean values (strings `true` and `false`).
+
+Note: Names of query parameters that may be repeated end with `[]`.
+
+## Remote Read API
+
+This API provides data read functionality from Prometheus. This interface expects [snappy](https://github.com/google/snappy) compression.
+The API definition is located [here](https://github.com/prometheus/prometheus/blob/master/prompb/remote.proto).
+/// Can you clarify what you mean by this?
+/// https://github.com/prometheus/prometheus/pull/7266#discussion_r426456791 Can we talk a little bit how negotiation works of sampled vs streamed ?
+
+Request are made to the following endpoint.
+```
+/api/v1/read
+```
+
+### Samples
+/// Does it return a message that includes a list, or does it return a list of raw samples?
+
+This returns a message that includes a list of raw samples.
+
+### Streamed Chunks
+/// This is a little much detail, the relevant point is they're the internal implementation of the chunks.
+
+These streamed chunks utilize an XOR algorithm inspired by the [Gorilla](http://www.vldb.org/pvldb/vol8/p1816-teller.pdf)
+compression to encode the chunks. However, it provides resolution to the millisecond instead of to the second.
+
+

docs/storage.md

@@ -155,7 +155,7 @@ Backfilling can be used via the Promtool command line. Promtool will write the b
 promtool tsdb create-blocks-from openmetrics <input file> [<output directory>]
 ```
 
-After the creation of the blocks, move it to the data directory of Prometheus. If there is an overlap with the existing blocks in Prometheus, the flag `--storage.tsdb.allow-overlapping-blocks` needs to be set. Note that any backfilled data is subject to the retention configured for your Prometheus server (by time or size).
+After the creation of the blocks, move it to the data directory of Prometheus. If there is an overlap with the existing blocks in Prometheus, the flag `--storage.tsdb.allow-overlapping-blocks` needs to be set for Prometheus versions v2.38 and below. Note that any backfilled data is subject to the retention configured for your Prometheus server (by time or size).
 
 #### Longer Block Durations
 
@@ -189,7 +189,7 @@ $ promtool tsdb create-blocks-from rules \
 
 The recording rule files provided should be a normal [Prometheus rules file](https://prometheus.io/docs/prometheus/latest/configuration/recording_rules/).
 
-The output of `promtool tsdb create-blocks-from rules` command is a directory that contains blocks with the historical rule data for all rules in the recording rule files. By default the output directory is `data/`. In order to make use of this new block data, the blocks must be moved to a running Prometheus instance data dir `storage.tsdb.path` that has the flag `--storage.tsdb.allow-overlapping-blocks` enabled. Once moved, the new blocks will merge with existing blocks when the next compaction runs.
+The output of `promtool tsdb create-blocks-from rules` command is a directory that contains blocks with the historical rule data for all rules in the recording rule files. By default, the output directory is `data/`. In order to make use of this new block data, the blocks must be moved to a running Prometheus instance data dir `storage.tsdb.path` (for Prometheus versions v2.38 and below, the flag `--storage.tsdb.allow-overlapping-blocks` must be enabled). Once moved, the new blocks will merge with existing blocks when the next compaction runs.
 
 ### Limitations
 

documentation/examples/remote_storage/go.mod

@@ -1,13 +1,13 @@
 module github.com/prometheus/prometheus/documentation/examples/remote_storage
 
-go 1.17
+go 1.18
 
 require (
 	github.com/go-kit/log v0.2.1
 	github.com/gogo/protobuf v1.3.2
 	github.com/golang/snappy v0.0.4
-	github.com/influxdata/influxdb v1.9.8
-	github.com/prometheus/client_golang v1.12.2
+	github.com/influxdata/influxdb v1.10.0
+	github.com/prometheus/client_golang v1.13.0
 	github.com/prometheus/common v0.37.0
 	github.com/stretchr/testify v1.8.0
 	gopkg.in/alecthomas/kingpin.v2 v2.2.6
@@ -16,7 +16,7 @@ require (
 require (
 	github.com/alecthomas/template v0.0.0-20190718012654-fb15b899a751 // indirect
 	github.com/alecthomas/units v0.0.0-20211218093645-b94a6e3cc137 // indirect
-	github.com/aws/aws-sdk-go v1.44.47 // indirect
+	github.com/aws/aws-sdk-go v1.44.72 // indirect
 	github.com/beorn7/perks v1.0.1 // indirect
 	github.com/cespare/xxhash/v2 v2.1.2 // indirect
 	github.com/davecgh/go-spew v1.1.1 // indirect
@@ -36,26 +36,26 @@ require (
 	github.com/pmezard/go-difflib v1.0.0 // indirect
 	github.com/prometheus/client_model v0.2.0 // indirect
 	github.com/prometheus/common/sigv4 v0.1.0 // indirect
-	github.com/prometheus/procfs v0.7.3 // indirect
-	go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.32.0 // indirect
-	go.opentelemetry.io/otel v1.7.0 // indirect
-	go.opentelemetry.io/otel/metric v0.30.0 // indirect
-	go.opentelemetry.io/otel/trace v1.7.0 // indirect
+	github.com/prometheus/procfs v0.8.0 // indirect
+	go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.34.0 // indirect
+	go.opentelemetry.io/otel v1.9.0 // indirect
+	go.opentelemetry.io/otel/metric v0.31.0 // indirect
+	go.opentelemetry.io/otel/trace v1.9.0 // indirect
 	go.uber.org/atomic v1.9.0 // indirect
 	go.uber.org/goleak v1.1.12 // indirect
-	golang.org/x/net v0.0.0-20220624214902-1bab6f366d9e // indirect
-	golang.org/x/sys v0.0.0-20220627191245-f75cf1eec38b // indirect
+	golang.org/x/net v0.0.0-20220809184613-07c6da5e1ced // indirect
+	golang.org/x/sys v0.0.0-20220808155132-1c4a2a72c664 // indirect
 	golang.org/x/text v0.3.7 // indirect
-	golang.org/x/time v0.0.0-20220609170525-579cf78fd858 // indirect
+	golang.org/x/time v0.0.0-20220722155302-e5dcc9cfc0b9 // indirect
 	google.golang.org/appengine v1.6.7 // indirect
-	google.golang.org/protobuf v1.28.0 // indirect
+	google.golang.org/protobuf v1.28.1 // indirect
 	gopkg.in/yaml.v2 v2.4.0 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
 )
 
 require (
-	github.com/prometheus/prometheus v0.37.0-rc.0.0.20220714131312-08f3ddb86469
-	golang.org/x/oauth2 v0.0.0-20220630143837-2104d58473e0 // indirect
+	github.com/prometheus/prometheus v0.38.0
+	golang.org/x/oauth2 v0.0.0-20220808172628-8227340efae7 // indirect
 )
 
 exclude (

documentation/examples/remote_storage/remote_storage_adapter/graphite/escape.go

@@ -47,21 +47,21 @@ const (
 // byte sequence found in this TagValue in way very similar to the traditional
 // percent-encoding (https://en.wikipedia.org/wiki/Percent-encoding):
 //
-// - The string that underlies TagValue is scanned byte by byte.
+//   - The string that underlies TagValue is scanned byte by byte.
 //
-// - If a byte represents a legal Graphite rune with the exception of '%', '/',
-//   '=' and '.', that byte is directly copied to the resulting byte slice.
-//   % is used for percent-encoding of other bytes.
-//   / is not usable in filenames.
-//   = is used when generating the path to associate values to labels.
-//   . already means something for Graphite and thus can't be used in a value.
+//   - If a byte represents a legal Graphite rune with the exception of '%', '/',
+//     '=' and '.', that byte is directly copied to the resulting byte slice.
+//     % is used for percent-encoding of other bytes.
+//     / is not usable in filenames.
+//     = is used when generating the path to associate values to labels.
+//     . already means something for Graphite and thus can't be used in a value.
 //
-// - If the byte is any of (){},=.'"\, then a '\' will be prepended to it. We
-//   do not percent-encode them since they are explicitly usable in this
-//   way in Graphite.
+//   - If the byte is any of (){},=.'"\, then a '\' will be prepended to it. We
+//     do not percent-encode them since they are explicitly usable in this
+//     way in Graphite.
 //
-// - All other bytes are replaced by '%' followed by two bytes containing the
-//   uppercase ASCII representation of their hexadecimal value.
+//   - All other bytes are replaced by '%' followed by two bytes containing the
+//     uppercase ASCII representation of their hexadecimal value.
 //
 // This encoding allows to save arbitrary Go strings in Graphite. That's
 // required because Prometheus label values can contain anything. Using

documentation/prometheus-mixin/config.libsonnet

@@ -21,7 +21,7 @@
     // If you run Prometheus on Kubernetes with the Prometheus
     // Operator, you can make use of the configured target labels for
     // nicer naming:
-    // prometheusNameTemplate: '{{$labels.namespace}}/{{$labels.pod}}'
+    // prometheusName: '{{$labels.namespace}}/{{$labels.pod}}'
 
     // prometheusHAGroupName is inserted into annotations to name an
     // HA group. All labels used here must also be present in

go.mod

@@ -7,15 +7,15 @@ require (
 	github.com/Azure/go-autorest/autorest v0.11.28
 	github.com/Azure/go-autorest/autorest/adal v0.9.21
 	github.com/alecthomas/units v0.0.0-20211218093645-b94a6e3cc137
-	github.com/aws/aws-sdk-go v1.44.67
+	github.com/aws/aws-sdk-go v1.44.109
 	github.com/cespare/xxhash/v2 v2.1.2
 	github.com/dennwc/varint v1.0.0
 	github.com/dgryski/go-sip13 v0.0.0-20200911182023-62edffca9245
-	github.com/digitalocean/godo v1.82.0
-	github.com/docker/docker v20.10.17+incompatible
+	github.com/digitalocean/godo v1.84.1
+	github.com/docker/docker v20.10.18+incompatible
 	github.com/edsrzf/mmap-go v1.1.0
 	github.com/envoyproxy/go-control-plane v0.10.3
-	github.com/envoyproxy/protoc-gen-validate v0.6.7
+	github.com/envoyproxy/protoc-gen-validate v0.6.8
 	github.com/fsnotify/fsnotify v1.5.4
 	github.com/go-kit/log v0.2.1
 	github.com/go-logfmt/logfmt v0.5.1
@@ -23,17 +23,17 @@ require (
 	github.com/go-zookeeper/zk v1.0.3
 	github.com/gogo/protobuf v1.3.2
 	github.com/golang/snappy v0.0.4
-	github.com/google/pprof v0.0.0-20220608213341-c488b8fa1db3
-	github.com/gophercloud/gophercloud v0.25.0
+	github.com/google/pprof v0.0.0-20220829040838-70bd9ae97f40
+	github.com/gophercloud/gophercloud v1.0.0
 	github.com/grafana/regexp v0.0.0-20220304095617-2e8d9baf4ac2
 	github.com/grpc-ecosystem/grpc-gateway v1.16.0
-	github.com/hashicorp/consul/api v1.13.1
-	github.com/hashicorp/nomad/api v0.0.0-20220629141207-c2428e1673ec
-	github.com/hetznercloud/hcloud-go v1.35.2
-	github.com/ionos-cloud/sdk-go/v6 v6.1.2
+	github.com/hashicorp/consul/api v1.15.2
+	github.com/hashicorp/nomad/api v0.0.0-20220921012004-ddeeb1040edf
+	github.com/hetznercloud/hcloud-go v1.35.3
+	github.com/ionos-cloud/sdk-go/v6 v6.1.3
 	github.com/json-iterator/go v1.1.12
-	github.com/kolo/xmlrpc v0.0.0-20201022064351-38db28db192b
-	github.com/linode/linodego v1.8.0
+	github.com/kolo/xmlrpc v0.0.0-20220919000247-3377102c83bd
+	github.com/linode/linodego v1.9.3
 	github.com/miekg/dns v1.1.50
 	github.com/mwitkow/go-conntrack v0.0.0-20190716064945-2f068394615f
 	github.com/oklog/run v1.1.0
@@ -50,34 +50,34 @@ require (
 	github.com/shurcooL/httpfs v0.0.0-20190707220628-8d4bc4ba7749
 	github.com/stretchr/testify v1.8.0
 	github.com/vultr/govultr/v2 v2.17.2
-	go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.34.0
-	go.opentelemetry.io/otel v1.9.0
-	go.opentelemetry.io/otel/exporters/otlp/otlptrace v1.9.0
-	go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc v1.9.0
-	go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp v1.9.0
-	go.opentelemetry.io/otel/sdk v1.9.0
-	go.opentelemetry.io/otel/trace v1.9.0
-	go.uber.org/atomic v1.9.0
+	go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.36.0
+	go.opentelemetry.io/otel v1.10.0
+	go.opentelemetry.io/otel/exporters/otlp/otlptrace v1.10.0
+	go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc v1.10.0
+	go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp v1.10.0
+	go.opentelemetry.io/otel/sdk v1.10.0
+	go.opentelemetry.io/otel/trace v1.10.0
+	go.uber.org/atomic v1.10.0
 	go.uber.org/automaxprocs v1.5.1
-	go.uber.org/goleak v1.1.12
-	golang.org/x/net v0.0.0-20220802222814-0bcc04d9c69b
-	golang.org/x/oauth2 v0.0.0-20220722155238-128564f6959c
-	golang.org/x/sync v0.0.0-20220722155255-886fb9371eb4
-	golang.org/x/sys v0.0.0-20220731174439-a90be440212d
-	golang.org/x/time v0.0.0-20220609170525-579cf78fd858
-	golang.org/x/tools v0.1.13-0.20220908144252-ce397412b6a4
-	google.golang.org/api v0.91.0
-	google.golang.org/genproto v0.0.0-20220802133213-ce4fa296bf78
-	google.golang.org/grpc v1.48.0
+	go.uber.org/goleak v1.2.0
+	golang.org/x/net v0.0.0-20220920203100-d0c6ba3f52d9
+	golang.org/x/oauth2 v0.0.0-20220909003341-f21342109be1
+	golang.org/x/sync v0.0.0-20220907140024-f12130a52804
+	golang.org/x/sys v0.0.0-20220919091848-fb04ddd9f9c8
+	golang.org/x/time v0.0.0-20220920022843-2ce7c2934d45
+	golang.org/x/tools v0.1.12
+	google.golang.org/api v0.96.0
+	google.golang.org/genproto v0.0.0-20220920201722-2b89144ce006
+	google.golang.org/grpc v1.49.0
 	google.golang.org/protobuf v1.28.1
 	gopkg.in/alecthomas/kingpin.v2 v2.2.6
 	gopkg.in/yaml.v2 v2.4.0
 	gopkg.in/yaml.v3 v3.0.1
-	k8s.io/api v0.24.3
-	k8s.io/apimachinery v0.24.3
-	k8s.io/client-go v0.24.3
+	k8s.io/api v0.25.2
+	k8s.io/apimachinery v0.25.2
+	k8s.io/client-go v0.25.2
 	k8s.io/klog v1.0.0
-	k8s.io/klog/v2 v2.70.0
+	k8s.io/klog/v2 v2.80.0
 )
 
 require (
@@ -92,7 +92,7 @@ require (
 	github.com/PuerkitoBio/purell v1.1.1 // indirect
 	github.com/PuerkitoBio/urlesc v0.0.0-20170810143723-de5bf2ad4578 // indirect
 	github.com/alecthomas/template v0.0.0-20190718012654-fb15b899a751 // indirect
-	github.com/armon/go-metrics v0.3.3 // indirect
+	github.com/armon/go-metrics v0.3.10 // indirect
 	github.com/asaskevich/govalidator v0.0.0-20210307081110-f21760c49a8d // indirect
 	github.com/beorn7/perks v1.0.1 // indirect
 	github.com/cenkalti/backoff/v4 v4.1.3 // indirect
@@ -101,7 +101,7 @@ require (
 	github.com/docker/distribution v2.7.1+incompatible // indirect
 	github.com/docker/go-connections v0.4.0 // indirect
 	github.com/docker/go-units v0.4.0 // indirect
-	github.com/emicklei/go-restful v2.16.0+incompatible // indirect
+	github.com/emicklei/go-restful/v3 v3.8.0 // indirect
 	github.com/evanphx/json-patch v4.12.0+incompatible // indirect
 	github.com/fatih/color v1.13.0 // indirect
 	github.com/felixge/httpsnoop v1.0.3 // indirect
@@ -129,17 +129,16 @@ require (
 	github.com/google/uuid v1.3.0 // indirect
 	github.com/googleapis/enterprise-certificate-proxy v0.1.0 // indirect
 	github.com/googleapis/gax-go/v2 v2.4.0 // indirect
-	github.com/gorilla/websocket v1.4.2 // indirect
+	github.com/gorilla/websocket v1.5.0 // indirect
 	github.com/grpc-ecosystem/grpc-gateway/v2 v2.11.1 // indirect
 	github.com/hashicorp/cronexpr v1.1.1 // indirect
 	github.com/hashicorp/go-cleanhttp v0.5.2 // indirect
-	github.com/hashicorp/go-hclog v0.12.2 // indirect
-	github.com/hashicorp/go-immutable-radix v1.2.0 // indirect
-	github.com/hashicorp/go-multierror v1.1.1 // indirect
+	github.com/hashicorp/go-hclog v0.14.1 // indirect
+	github.com/hashicorp/go-immutable-radix v1.3.0 // indirect
 	github.com/hashicorp/go-retryablehttp v0.7.1 // indirect
 	github.com/hashicorp/go-rootcerts v1.0.2 // indirect
 	github.com/hashicorp/golang-lru v0.5.4 // indirect
-	github.com/hashicorp/serf v0.9.6 // indirect
+	github.com/hashicorp/serf v0.9.7 // indirect
 	github.com/imdario/mergo v0.3.12 // indirect
 	github.com/jmespath/go-jmespath v0.4.0 // indirect
 	github.com/josharian/intern v1.0.0 // indirect
@@ -150,14 +149,12 @@ require (
 	github.com/mattn/go-isatty v0.0.14 // indirect
 	github.com/matttproud/golang_protobuf_extensions v1.0.2-0.20181231171920-c182affec369 // indirect
 	github.com/mitchellh/go-homedir v1.1.0 // indirect
-	github.com/mitchellh/mapstructure v1.4.3 // indirect
+	github.com/mitchellh/mapstructure v1.5.0 // indirect
 	github.com/moby/term v0.0.0-20210619224110-3f7ff695adc6 // indirect
 	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
 	github.com/modern-go/reflect2 v1.0.2 // indirect
 	github.com/morikuni/aec v1.0.0 // indirect
 	github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822 // indirect
-	github.com/onsi/ginkgo v1.16.4 // indirect
-	github.com/onsi/gomega v1.15.0 // indirect
 	github.com/opencontainers/go-digest v1.0.0 // indirect
 	github.com/opencontainers/image-spec v1.0.2 // indirect
 	github.com/pmezard/go-difflib v1.0.0 // indirect
@@ -165,24 +162,25 @@ require (
 	github.com/rogpeppe/go-internal v1.8.1 // indirect
 	github.com/sirupsen/logrus v1.8.1 // indirect
 	github.com/spf13/pflag v1.0.5 // indirect
-	go.mongodb.org/mongo-driver v1.10.0 // indirect
+	go.mongodb.org/mongo-driver v1.10.2 // indirect
 	go.opencensus.io v0.23.0 // indirect
-	go.opentelemetry.io/otel/exporters/otlp/internal/retry v1.9.0 // indirect
-	go.opentelemetry.io/otel/metric v0.31.0 // indirect
-	go.opentelemetry.io/proto/otlp v0.18.0 // indirect
+	go.opentelemetry.io/otel/exporters/otlp/internal/retry v1.10.0 // indirect
+	go.opentelemetry.io/otel/metric v0.32.0 // indirect
+	go.opentelemetry.io/proto/otlp v0.19.0 // indirect
 	golang.org/x/crypto v0.0.0-20220722155217-630584e8d5aa // indirect
+	golang.org/x/exp v0.0.0-20220722155223-a9213eeb770e
 	golang.org/x/mod v0.6.0-dev.0.20220419223038-86c51ed26bb4 // indirect
 	golang.org/x/term v0.0.0-20210927222741-03fcf44c2211 // indirect
 	golang.org/x/text v0.3.7 // indirect
 	google.golang.org/appengine v1.6.7 // indirect
 	gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c // indirect
 	gopkg.in/inf.v0 v0.9.1 // indirect
-	gopkg.in/ini.v1 v1.66.4 // indirect
+	gopkg.in/ini.v1 v1.66.6 // indirect
 	gotest.tools/v3 v3.0.3 // indirect
-	k8s.io/kube-openapi v0.0.0-20220328201542-3ee0da9b0b42 // indirect
-	k8s.io/utils v0.0.0-20220210201930-3a6ce19ff2f9 // indirect
-	sigs.k8s.io/json v0.0.0-20211208200746-9f7c6b3444d2 // indirect
-	sigs.k8s.io/structured-merge-diff/v4 v4.2.1 // indirect
+	k8s.io/kube-openapi v0.0.0-20220803162953-67bda5d908f1 // indirect
+	k8s.io/utils v0.0.0-20220728103510-ee6ede2d64ed // indirect
+	sigs.k8s.io/json v0.0.0-20220713155537-f223a00ba0e2 // indirect
+	sigs.k8s.io/structured-merge-diff/v4 v4.2.3 // indirect
 	sigs.k8s.io/yaml v1.3.0 // indirect
 )
 

go.sum

@@ -3,6 +3,7 @@ cloud.google.com/go v0.34.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMT
 cloud.google.com/go v0.38.0/go.mod h1:990N+gfupTy94rShfmMCWGDn0LpTmnzTp2qbd1dvSRU=
 cloud.google.com/go v0.44.1/go.mod h1:iSa0KzasP4Uvy3f1mN/7PiObzGgflwredwwASm/v6AU=
 cloud.google.com/go v0.44.2/go.mod h1:60680Gw3Yr4ikxnPRS/oxxkBccT6SA1yMk63TGekxKY=
+cloud.google.com/go v0.44.3/go.mod h1:60680Gw3Yr4ikxnPRS/oxxkBccT6SA1yMk63TGekxKY=
 cloud.google.com/go v0.45.1/go.mod h1:RpBamKRgapWJb87xiFSdk4g1CME7QZg3uwTez+TSTjc=
 cloud.google.com/go v0.46.3/go.mod h1:a6bKKbmY7er1mI7TEI4lsAkts/mkhTSZK8w33B4RAg0=
 cloud.google.com/go v0.50.0/go.mod h1:r9sluTvynVuxRIOHXQEHMFffphuXHOMZMycpNR5e6To=
@@ -14,6 +15,7 @@ cloud.google.com/go v0.57.0/go.mod h1:oXiQ6Rzq3RAkkY7N6t3TcE6jE+CIBBbA36lwQ1JyzZ
 cloud.google.com/go v0.65.0/go.mod h1:O5N8zS7uWy9vkA9vayVHs65eM1ubvY4h553ofrNHObY=
 cloud.google.com/go v0.72.0/go.mod h1:M+5Vjvlc2wnp6tjzE102Dw08nGShTscUx2nZMufOKPI=
 cloud.google.com/go v0.74.0/go.mod h1:VV1xSbzvo+9QJOxLDaJfTjx5e+MePCpCWwvftOeQmWk=
+cloud.google.com/go v0.75.0/go.mod h1:VGuuCn7PG0dwsd5XPVm2Mm3wlh3EL55/79EKB6hlPTY=
 cloud.google.com/go v0.78.0/go.mod h1:QjdrLG0uq+YwhjoVOLsS1t7TW8fs36kLs4XO5R5ECHg=
 cloud.google.com/go v0.79.0/go.mod h1:3bzgcEeQlzbuEAYu4mrWhKqWjmpprinYgKJLgKHnbb8=
 cloud.google.com/go v0.81.0/go.mod h1:mk/AM35KwGk/Nm2YSeZbxXdrNK3KZOYHmLkOqC2V6E0=
@@ -52,6 +54,7 @@ cloud.google.com/go/storage v1.5.0/go.mod h1:tpKbwo567HUNpVclU5sGELwQWBDZ8gh0Zeo
 cloud.google.com/go/storage v1.6.0/go.mod h1:N7U0C8pVQ/+NIKOBQyamJIeKQKkZ+mxpohlUTyfDhBk=
 cloud.google.com/go/storage v1.8.0/go.mod h1:Wv1Oy7z6Yz3DshWRJFhqM/UCfaWIRTdp0RXyy7KQOVs=
 cloud.google.com/go/storage v1.10.0/go.mod h1:FLPqc6j+Ki4BU591ie1oL6qBQGu2Bl/tZ9ullr3+Kg0=
+cloud.google.com/go/storage v1.14.0/go.mod h1:GrKmX003DSIwi9o29oFT7YDnHYwZoctc3fOKtUw0Xmo=
 cloud.google.com/go/storage v1.22.1/go.mod h1:S8N1cAStu7BOeFfE8KAQzmyyLkK8p/vmRq6kuBTW58Y=
 dmitri.shuralyov.com/gpu/mtl v0.0.0-20190408044501-666a987793e9/go.mod h1:H6x//7gZCb22OMCxBHrMx7a5I7Hp++hsVxbQ4BYO7hU=
 github.com/Azure/azure-sdk-for-go v65.0.0+incompatible h1:HzKLt3kIwMm4KeJYTdx9EbjRYTySD/t8i1Ee/W5EGXw=
@@ -60,10 +63,8 @@ github.com/Azure/go-ansiterm v0.0.0-20210617225240-d185dfc1b5a1 h1:UQHMgLO+TxOEl
 github.com/Azure/go-ansiterm v0.0.0-20210617225240-d185dfc1b5a1/go.mod h1:xomTg63KZ2rFqZQzSB4Vz2SUXa1BpHTVz9L5PTmPC4E=
 github.com/Azure/go-autorest v14.2.0+incompatible h1:V5VMDjClD3GiElqLWO7mz2MxNAK/vTfRHdAubSIPRgs=
 github.com/Azure/go-autorest v14.2.0+incompatible/go.mod h1:r+4oMnoxhatjLLJ6zxSWATqVooLgysK6ZNox3g/xq24=
-github.com/Azure/go-autorest/autorest v0.11.18/go.mod h1:dSiJPy22c3u0OtOKDNttNgqpNFY/GeWa7GH/Pz56QRA=
 github.com/Azure/go-autorest/autorest v0.11.28 h1:ndAExarwr5Y+GaHE6VCaY1kyS/HwwGGyuimVhWsHOEM=
 github.com/Azure/go-autorest/autorest v0.11.28/go.mod h1:MrkzG3Y3AH668QyF9KRk5neJnGgmhQ6krbhR8Q5eMvA=
-github.com/Azure/go-autorest/autorest/adal v0.9.13/go.mod h1:W/MM4U6nLxnIskrw4UwWzlHfGjwUS50aOsc/I3yuU8M=
 github.com/Azure/go-autorest/autorest/adal v0.9.18/go.mod h1:XVVeme+LZwABT8K5Lc3hA4nAe8LDBVle26gTrguhhPQ=
 github.com/Azure/go-autorest/autorest/adal v0.9.21 h1:jjQnVFXPfekaqb8vIsv2G1lxshoW+oGv4MDlhRtnYZk=
 github.com/Azure/go-autorest/autorest/adal v0.9.21/go.mod h1:zua7mBUaCc5YnSLKYgGJR/w5ePdMDA6H56upLsHzA9U=
@@ -86,7 +87,6 @@ github.com/DataDog/datadog-go v3.2.0+incompatible/go.mod h1:LButxg5PwREeZtORoXG3
 github.com/Knetic/govaluate v3.0.1-0.20171022003610-9aa49832a739+incompatible/go.mod h1:r7JcOSlj0wfOMncg0iLm8Leh48TZaKVeNIfJntJ2wa0=
 github.com/Microsoft/go-winio v0.5.1 h1:aPJp2QD7OOrhO5tQXqQoGSJc+DjDtWTGLOmNyAm6FgY=
 github.com/Microsoft/go-winio v0.5.1/go.mod h1:JPGBdM1cNvN/6ISo+n8V5iA4v8pBzdOpzfwIujj1a84=
-github.com/NYTimes/gziphandler v0.0.0-20170623195520-56545f4a5d46/go.mod h1:3wb06e3pkSAbeQ52E9H9iFoQsEEwGN64994WTCIhntQ=
 github.com/OneOfOne/xxhash v1.2.2/go.mod h1:HSdplMjZKSmBqAxg5vPj2TmRDmfkzw+cTzAElWljhcU=
 github.com/PuerkitoBio/purell v1.1.1 h1:WEQqlqaGbrPkxLJWfBwQmfEAE1Z7ONdDLqrN38tNFfI=
 github.com/PuerkitoBio/purell v1.1.1/go.mod h1:c11w/QuzBsJSee3cPx9rAFu61PvFxuPbtSwDGJws/X0=
@@ -109,13 +109,11 @@ github.com/apache/thrift v0.12.0/go.mod h1:cp2SuWMxlEZw2r+iP2GNCdIi4C1qmUzdZFSVb
 github.com/apache/thrift v0.13.0/go.mod h1:cp2SuWMxlEZw2r+iP2GNCdIi4C1qmUzdZFSVb+bacwQ=
 github.com/armon/circbuf v0.0.0-20150827004946-bbbad097214e/go.mod h1:3U/XgcO3hCbHZ8TKRvWD2dDTCfh9M9ya+I9JpbB7O8o=
 github.com/armon/go-metrics v0.0.0-20180917152333-f0300d1749da/go.mod h1:Q73ZrmVTwzkszR9V5SSuryQ31EELlFMUz1kKyl939pY=
-github.com/armon/go-metrics v0.3.3 h1:a9F4rlj7EWWrbj7BYw8J8+x+ZZkJeqzNyRk8hdPF+ro=
-github.com/armon/go-metrics v0.3.3/go.mod h1:4O98XIr/9W0sxpJ8UaYkvjk10Iff7SnFrb4QAOwNTFc=
+github.com/armon/go-metrics v0.3.10 h1:FR+drcQStOe+32sYyJYyZ7FIdgoGGBnwLl+flodp8Uo=
+github.com/armon/go-metrics v0.3.10/go.mod h1:4O98XIr/9W0sxpJ8UaYkvjk10Iff7SnFrb4QAOwNTFc=
 github.com/armon/go-radix v0.0.0-20180808171621-7fddfc383310/go.mod h1:ufUuZ+zHj4x4TnLV4JWEpy2hxWSpsRywHrMgIH9cCH8=
 github.com/armon/go-radix v1.0.0/go.mod h1:ufUuZ+zHj4x4TnLV4JWEpy2hxWSpsRywHrMgIH9cCH8=
-github.com/armon/go-socks5 v0.0.0-20160902184237-e75332964ef5/go.mod h1:wHh0iHkYZB8zMSxRWpUBQtwG5a7fFgvEO+odwuTv2gs=
 github.com/aryann/difflib v0.0.0-20170710044230-e206f873d14a/go.mod h1:DAHtR1m6lCRdSC2Tm3DSWRPvIPr6xNKyeHdqDQSQT+A=
-github.com/asaskevich/govalidator v0.0.0-20190424111038-f61b66f89f4a/go.mod h1:lB+ZfQJz7igIIfQNfa7Ml4HSf2uFQQRzpGGRXenZAgY=
 github.com/asaskevich/govalidator v0.0.0-20200907205600-7a23bdc65eef/go.mod h1:WaHUgvxTVq04UNunO+XhnAqY/wQc+bxr74GqbsZ/Jqw=
 github.com/asaskevich/govalidator v0.0.0-20210307081110-f21760c49a8d h1:Byv0BzEl3/e6D5CLfI0j/7hiIEtvGVFPCZ7Ei2oq8iQ=
 github.com/asaskevich/govalidator v0.0.0-20210307081110-f21760c49a8d/go.mod h1:WaHUgvxTVq04UNunO+XhnAqY/wQc+bxr74GqbsZ/Jqw=
@@ -123,8 +121,8 @@ github.com/aws/aws-lambda-go v1.13.3/go.mod h1:4UKl9IzQMoD+QF79YdCuzCwp8VbmG4VAQ
 github.com/aws/aws-sdk-go v1.27.0/go.mod h1:KmX6BPdI08NWTb3/sm4ZGu5ShLoqVDhKgpiN924inxo=
 github.com/aws/aws-sdk-go v1.38.35/go.mod h1:hcU610XS61/+aQV88ixoOzUoG7v3b31pl2zKMmprdro=
 github.com/aws/aws-sdk-go v1.43.11/go.mod h1:y4AeaBuwd2Lk+GepC1E9v0qOiTws0MIWAX4oIKwKHZo=
-github.com/aws/aws-sdk-go v1.44.67 h1:+nxfXbMe8QUB6svLsuLYsp+WhZBKM26w62Zidir739A=
-github.com/aws/aws-sdk-go v1.44.67/go.mod h1:y4AeaBuwd2Lk+GepC1E9v0qOiTws0MIWAX4oIKwKHZo=
+github.com/aws/aws-sdk-go v1.44.109 h1:+Na5JPeS0kiEHoBp5Umcuuf+IDqXqD0lXnM920E31YI=
+github.com/aws/aws-sdk-go v1.44.109/go.mod h1:y4AeaBuwd2Lk+GepC1E9v0qOiTws0MIWAX4oIKwKHZo=
 github.com/aws/aws-sdk-go-v2 v0.18.0/go.mod h1:JWVYvqSMppoMJC0x5wdwiImzgXTI9FuZwxzkQq9wy+g=
 github.com/beorn7/perks v0.0.0-20180321164747-3a771d992973/go.mod h1:Dwedo/Wpr24TaqPxmxbtue+5NUziq4I4S80YR8gNf3Q=
 github.com/beorn7/perks v1.0.0/go.mod h1:KWe93zE9D1o94FZ5RNwFwVgaQK1VOXiVxmqh+CedLV8=
@@ -177,13 +175,13 @@ github.com/dennwc/varint v1.0.0/go.mod h1:hnItb35rvZvJrbTALZtY/iQfDs48JKRG1RPpgz
 github.com/dgrijalva/jwt-go v3.2.0+incompatible/go.mod h1:E3ru+11k8xSBh+hMPgOLZmtrrCbhqsmaPHjLKYnJCaQ=
 github.com/dgryski/go-sip13 v0.0.0-20200911182023-62edffca9245 h1:9cOfvEwjQxdwKuNDTQSaMKNRvwKwgZG+U4HrjeRKHso=
 github.com/dgryski/go-sip13 v0.0.0-20200911182023-62edffca9245/go.mod h1:vAd38F8PWV+bWy6jNmig1y/TA+kYO4g3RSRF0IAv0no=
-github.com/digitalocean/godo v1.82.0 h1:lqAit46H1CqJGjh7LDbsamng/UMBME5rvmfH3Vb5Yy8=
-github.com/digitalocean/godo v1.82.0/go.mod h1:BPCqvwbjbGqxuUnIKB4EvS/AX7IDnNmt5fwvIkWo+ew=
+github.com/digitalocean/godo v1.84.1 h1:VgPsuxhrO9pUygvij6qOhqXfAkxAsDZYRpmjSDMEaHo=
+github.com/digitalocean/godo v1.84.1/go.mod h1:BPCqvwbjbGqxuUnIKB4EvS/AX7IDnNmt5fwvIkWo+ew=
 github.com/dnaeon/go-vcr v1.2.0 h1:zHCHvJYTMh1N7xnV7zf1m1GPBF9Ad0Jk/whtQ1663qI=
 github.com/docker/distribution v2.7.1+incompatible h1:a5mlkVzth6W5A4fOsS3D2EO5BUmsJpcB+cRlLU7cSug=
 github.com/docker/distribution v2.7.1+incompatible/go.mod h1:J2gT2udsDAN96Uj4KfcMRqY0/ypR+oyYUYmja8H+y+w=
-github.com/docker/docker v20.10.17+incompatible h1:JYCuMrWaVNophQTOrMMoSwudOVEfcegoZZrleKc1xwE=
-github.com/docker/docker v20.10.17+incompatible/go.mod h1:eEKB0N0r5NX/I1kEveEz05bcu8tLC/8azJZsviup8Sk=
+github.com/docker/docker v20.10.18+incompatible h1:SN84VYXTBNGn92T/QwIRPlum9zfemfitN7pbsp26WSc=
+github.com/docker/docker v20.10.18+incompatible/go.mod h1:eEKB0N0r5NX/I1kEveEz05bcu8tLC/8azJZsviup8Sk=
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@@ -196,11 +194,8 @@ github.com/eapache/queue v1.1.0/go.mod h1:6eCeP0CKFpHLu8blIFXhExK/dRa7WDZfr6jVFP
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-github.com/emicklei/go-restful v2.9.5+incompatible/go.mod h1:otzb+WCGbkyDHkqmQmT5YD2WR4BBwUdeQoFo8l/7tVs=
-github.com/emicklei/go-restful v2.16.0+incompatible h1:rgqiKNjTnFQA6kkhFe16D8epTksy9HQ1MyrbDXSdYhM=
-github.com/emicklei/go-restful v2.16.0+incompatible/go.mod h1:otzb+WCGbkyDHkqmQmT5YD2WR4BBwUdeQoFo8l/7tVs=
+github.com/emicklei/go-restful/v3 v3.8.0 h1:eCZ8ulSerjdAiaNpF7GxXIE7ZCMo1moN1qX+S609eVw=
+github.com/emicklei/go-restful/v3 v3.8.0/go.mod h1:6n3XBCmQQb25CM2LCACGz8ukIrRry+4bhvbpWn3mrbc=
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@@ -214,8 +209,9 @@ github.com/envoyproxy/go-control-plane v0.10.2-0.20220325020618-49ff273808a1/go.
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@@ -225,15 +221,11 @@ github.com/fatih/color v1.13.0 h1:8LOYc1KYPPmyKMuN8QV2DNRWNbLo6LZ0iLs8+mlH53w=
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-github.com/form3tech-oss/jwt-go v3.2.2+incompatible/go.mod h1:pbq4aXjuKjdthFRnoDwaVPLA+WlJuPGy+QneDUgJi2k=
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@@ -266,8 +258,6 @@ github.com/go-openapi/errors v0.20.2/go.mod h1:cM//ZKUKyO06HSwqAelJ5NsEMMcpa6VpX
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@@ -281,7 +271,6 @@ github.com/go-openapi/strfmt v0.21.2/go.mod h1:I/XVKeLc5+MM5oPNN7P6urMOpuLXEcNrC
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@@ -297,7 +286,6 @@ github.com/go-sql-driver/mysql v1.4.0/go.mod h1:zAC/RDZ24gD3HViQzih4MyKcchzm+sOG
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@@ -379,7 +367,6 @@ github.com/golang/snappy v0.0.4/go.mod h1:/XxbfmMg8lxefKM7IXC3fBNl/7bRcc72aCRzEW
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@@ -400,7 +387,6 @@ github.com/google/go-cmp v0.5.8/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeN
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@@ -416,13 +402,14 @@ github.com/google/pprof v0.0.0-20200430221834-fc25d7d30c6d/go.mod h1:ZgVRPoUq/hf
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@@ -441,19 +428,18 @@ github.com/googleapis/gax-go/v2 v2.3.0/go.mod h1:b8LNqSzNabLiUpXKkY7HAR5jr6bIT99
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@@ -463,11 +449,11 @@ github.com/grpc-ecosystem/grpc-gateway/v2 v2.7.0/go.mod h1:hgWBS7lorOAVIJEQMi4Zs
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@@ -500,8 +487,9 @@ github.com/hashicorp/go-sockaddr v1.0.2 h1:ztczhD1jLxIRjVejw8gFomI1BQZOe2WoVOu0S
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@@ -634,9 +622,9 @@ github.com/mitchellh/mapstructure v0.0.0-20160808181253-ca63d7c062ee/go.mod h1:F
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@@ -664,9 +650,6 @@ github.com/nats-io/nkeys v0.1.0/go.mod h1:xpnFELMwJABBLVhffcfd1MZx6VsNRFpEugbxzi
 github.com/nats-io/nkeys v0.1.3/go.mod h1:xpnFELMwJABBLVhffcfd1MZx6VsNRFpEugbxziKVo7w=
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-github.com/nxadm/tail v1.4.8 h1:nPr65rt6Y5JFSKQO7qToXr7pePgD6Gwiw05lkbyAQTE=
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@@ -674,19 +657,12 @@ github.com/oklog/run v1.1.0/go.mod h1:sVPdnTZT1zYwAJeCMu2Th4T21pA3FPOQRfWjQlk7DV
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@@ -708,7 +684,6 @@ github.com/pascaldekloe/goe v0.1.0/go.mod h1:lzWF7FIEvWOWxwDKqyGYQf6ZUaNfKdP144T
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@@ -718,6 +693,7 @@ github.com/pkg/errors v0.9.1 h1:FEBLx1zS214owpjy7qsBeixbURkuhQAwrK5UwLGTwt4=
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@@ -784,6 +760,7 @@ github.com/scaleway/scaleway-sdk-go v1.0.0-beta.9 h1:0roa6gXKgyta64uqh52AQG3wzZX
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@@ -808,6 +785,7 @@ github.com/spaolacci/murmur3 v0.0.0-20180118202830-f09979ecbc72/go.mod h1:JwIasO
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@@ -853,13 +831,15 @@ github.com/yuin/goldmark v1.1.32/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9de
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@@ -870,36 +850,37 @@ go.opencensus.io v0.22.4/go.mod h1:yxeiOL68Rb0Xd1ddK5vPZ/oVn4vY4Ynel7k9FzqtOIw=
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 go.uber.org/atomic v1.9.0/go.mod h1:fEN4uk6kAWBTFdckzkM89CLk9XfWZrxpCo0nPH17wJc=
+go.uber.org/atomic v1.10.0 h1:9qC72Qh0+3MqyJbAn8YU5xVq1frD8bn3JtD2oXtafVQ=
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 go.uber.org/automaxprocs v1.5.1/go.mod h1:BF4eumQw0P9GtnuxxovUd06vwm1o18oMzFtK66vU6XU=
-go.uber.org/goleak v1.1.12 h1:gZAh5/EyT/HQwlpkCy6wTpqfH9H8Lz8zbm3dZh+OyzA=
-go.uber.org/goleak v1.1.12/go.mod h1:cwTWslyiVhfpKIDGSZEM2HlOvcqm+tG4zioyIeLoqMQ=
+go.uber.org/goleak v1.2.0 h1:xqgm/S+aQvhWFTtR0XK3Jvg7z8kGV8P4X14IzwN3Eqk=
+go.uber.org/goleak v1.2.0/go.mod h1:XJYK+MuIchqpmGmUSAzotztawfKvYLUIgg7guXrwVUo=
 go.uber.org/multierr v1.1.0/go.mod h1:wR5kodmAFQ0UK8QlbwjlSNy0Z68gJhDJUG5sjR94q/0=
 go.uber.org/multierr v1.3.0/go.mod h1:VgVr7evmIr6uPjLBxg28wmKNXyqE9akIJ5XnfpiKl+4=
 go.uber.org/tools v0.0.0-20190618225709-2cfd321de3ee/go.mod h1:vJERXedbb3MVM5f9Ejo0C68/HhF8uaILCdgjnY+goOA=
@@ -917,12 +898,12 @@ golang.org/x/crypto v0.0.0-20190923035154-9ee001bba392/go.mod h1:/lpIB1dKB+9EgE3
 golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
 golang.org/x/crypto v0.0.0-20200302210943-78000ba7a073/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
 golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
-golang.org/x/crypto v0.0.0-20201002170205-7f63de1d35b0/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
 golang.org/x/crypto v0.0.0-20201216223049-8b5274cf687f/go.mod h1:jdWPYTVW3xRLrWPugEBEK3UY2ZEsg3UU495nc5E+M+I=
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 golang.org/x/crypto v0.0.0-20210616213533-5ff15b29337e/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc=
 golang.org/x/crypto v0.0.0-20210921155107-089bfa567519/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc=
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 golang.org/x/crypto v0.0.0-20211202192323-5770296d904e/go.mod h1:IxCIyHEi3zRg3s0A5j5BB6A9Jmi73HwBIUl50j+osU4=
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 golang.org/x/crypto v0.0.0-20220622213112-05595931fe9d/go.mod h1:IxCIyHEi3zRg3s0A5j5BB6A9Jmi73HwBIUl50j+osU4=
 golang.org/x/crypto v0.0.0-20220722155217-630584e8d5aa h1:zuSxTR4o9y82ebqCUJYNGJbGPo6sKVl54f/TVDObg1c=
 golang.org/x/crypto v0.0.0-20220722155217-630584e8d5aa/go.mod h1:IxCIyHEi3zRg3s0A5j5BB6A9Jmi73HwBIUl50j+osU4=
@@ -936,6 +917,8 @@ golang.org/x/exp v0.0.0-20191227195350-da58074b4299/go.mod h1:2RIsYlXP63K8oxa1u0
 golang.org/x/exp v0.0.0-20200119233911-0405dc783f0a/go.mod h1:2RIsYlXP63K8oxa1u096TMicItID8zy7Y6sNkU49FU4=
 golang.org/x/exp v0.0.0-20200207192155-f17229e696bd/go.mod h1:J/WKrq2StrnmMY6+EHIKF9dgMWnmCNThgcyBT1FY9mM=
 golang.org/x/exp v0.0.0-20200224162631-6cc2880d07d6/go.mod h1:3jZMyOhIsHpP37uCMkUooju7aAi5cS1Q23tOzKc+0MU=
+golang.org/x/exp v0.0.0-20220722155223-a9213eeb770e h1:+WEEuIdZHnUeJJmEUjyYC2gfUMj69yZXw17EnHg/otA=
+golang.org/x/exp v0.0.0-20220722155223-a9213eeb770e/go.mod h1:Kr81I6Kryrl9sr8s2FK3vxD90NdsKWRuOIl2O4CvYbA=
 golang.org/x/image v0.0.0-20190227222117-0694c2d4d067/go.mod h1:kZ7UVZpmo3dzQBMxlp+ypCbDeSB+sBbTgSJuh5dn5js=
 golang.org/x/image v0.0.0-20190802002840-cff245a6509b/go.mod h1:FeLwcggjj3mMvU+oOTbSwawSJRM1uh48EjtB4UJZlP0=
 golang.org/x/lint v0.0.0-20181026193005-c67002cb31c3/go.mod h1:UVdnD1Gm6xHRNCYTkRU2/jEulfH38KcIWyp/GAMgvoE=
@@ -986,7 +969,6 @@ golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLL
 golang.org/x/net v0.0.0-20190628185345-da137c7871d7/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20190724013045-ca1201d0de80/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20190813141303-74dc4d7220e7/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
-golang.org/x/net v0.0.0-20190827160401-ba9fcec4b297/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20190923162816-aa69164e4478/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20191209160850-c0dbc17a3553/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20200114155413-6afb5195e5aa/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
@@ -998,7 +980,6 @@ golang.org/x/net v0.0.0-20200324143707-d3edc9973b7e/go.mod h1:qpuaurCH72eLCgpAm/
 golang.org/x/net v0.0.0-20200501053045-e0ff5e5a1de5/go.mod h1:qpuaurCH72eLCgpAm/N6yyVIVM9cpaDIP3A8BGJEC5A=
 golang.org/x/net v0.0.0-20200506145744-7e3656a0809f/go.mod h1:qpuaurCH72eLCgpAm/N6yyVIVM9cpaDIP3A8BGJEC5A=
 golang.org/x/net v0.0.0-20200513185701-a91f0712d120/go.mod h1:qpuaurCH72eLCgpAm/N6yyVIVM9cpaDIP3A8BGJEC5A=
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 golang.org/x/net v0.0.0-20200520182314-0ba52f642ac2/go.mod h1:qpuaurCH72eLCgpAm/N6yyVIVM9cpaDIP3A8BGJEC5A=
 golang.org/x/net v0.0.0-20200625001655-4c5254603344/go.mod h1:/O7V0waA8r7cgGh81Ro3o1hOxt32SMVPicZroKQ2sZA=
 golang.org/x/net v0.0.0-20200822124328-c89045814202/go.mod h1:/O7V0waA8r7cgGh81Ro3o1hOxt32SMVPicZroKQ2sZA=
@@ -1006,19 +987,20 @@ golang.org/x/net v0.0.0-20201021035429-f5854403a974/go.mod h1:sp8m0HH+o8qH0wwXwY
 golang.org/x/net v0.0.0-20201031054903-ff519b6c9102/go.mod h1:sp8m0HH+o8qH0wwXwYZr8TS3Oi6o0r6Gce1SSxlDquU=
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@@ -1026,8 +1008,11 @@ golang.org/x/net v0.0.0-20220412020605-290c469a71a5/go.mod h1:CfG3xpIq0wQ8r1q4Su
 golang.org/x/net v0.0.0-20220425223048-2871e0cb64e4/go.mod h1:CfG3xpIq0wQ8r1q4Su4UZFWDARRcnwPjda9FqA0JpMk=
 golang.org/x/net v0.0.0-20220607020251-c690dde0001d/go.mod h1:XRhObCWvk6IyKnWLug+ECip1KBveYUHfp+8e9klMJ9c=
 golang.org/x/net v0.0.0-20220624214902-1bab6f366d9e/go.mod h1:XRhObCWvk6IyKnWLug+ECip1KBveYUHfp+8e9klMJ9c=
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 golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
 golang.org/x/oauth2 v0.0.0-20190226205417-e64efc72b421/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw=
 golang.org/x/oauth2 v0.0.0-20190604053449-0f29369cfe45/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw=
@@ -1048,9 +1033,9 @@ golang.org/x/oauth2 v0.0.0-20220223155221-ee480838109b/go.mod h1:DAh4E804XQdzx2j
 golang.org/x/oauth2 v0.0.0-20220309155454-6242fa91716a/go.mod h1:DAh4E804XQdzx2j+YRIaUnCqCV2RuMz24cGBJ5QYIrc=
 golang.org/x/oauth2 v0.0.0-20220411215720-9780585627b5/go.mod h1:DAh4E804XQdzx2j+YRIaUnCqCV2RuMz24cGBJ5QYIrc=
 golang.org/x/oauth2 v0.0.0-20220608161450-d0670ef3b1eb/go.mod h1:jaDAt6Dkxork7LmZnYtzbRWj0W47D86a3TGe0YHBvmE=
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 golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
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 golang.org/x/sync v0.0.0-20181221193216-37e7f081c4d4/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
@@ -1064,8 +1049,9 @@ golang.org/x/sync v0.0.0-20201020160332-67f06af15bc9/go.mod h1:RxMgew5VJxzue5/jJ
 golang.org/x/sync v0.0.0-20201207232520-09787c993a3a/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20210220032951-036812b2e83c/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
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 golang.org/x/sync v0.0.0-20220722155255-886fb9371eb4/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
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 golang.org/x/sys v0.0.0-20180823144017-11551d06cbcc/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
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@@ -1088,14 +1074,11 @@ golang.org/x/sys v0.0.0-20190606165138-5da285871e9c/go.mod h1:h1NjWce9XRLGQEsW7w
 golang.org/x/sys v0.0.0-20190624142023-c5567b49c5d0/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20190726091711-fc99dfbffb4e/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20190826190057-c7b8b68b1456/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
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 golang.org/x/sys v0.0.0-20190922100055-0a153f010e69/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20190924154521-2837fb4f24fe/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
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 golang.org/x/sys v0.0.0-20191008105621-543471e840be/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20191026070338-33540a1f6037/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20191120155948-bd437916bb0e/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20191204072324-ce4227a45e2e/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20191220142924-d4481acd189f/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20191228213918-04cbcbbfeed8/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
@@ -1112,7 +1095,6 @@ golang.org/x/sys v0.0.0-20200331124033-c3d80250170d/go.mod h1:h1NjWce9XRLGQEsW7w
 golang.org/x/sys v0.0.0-20200501052902-10377860bb8e/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200511232937-7e40ca221e25/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200515095857-1151b9dac4a9/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20200519105757-fe76b779f299/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200523222454-059865788121/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200615200032-f1bc736245b1/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200625212154-ddb9806d33ae/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
@@ -1121,10 +1103,10 @@ golang.org/x/sys v0.0.0-20200930185726-fdedc70b468f/go.mod h1:h1NjWce9XRLGQEsW7w
 golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20201201145000-ef89a241ccb3/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210104204734-6f8348627aad/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20210112080510-489259a85091/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210119212857-b64e53b001e4/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210124154548-22da62e12c0c/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210220050731-9a76102bfb43/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
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 golang.org/x/sys v0.0.0-20210303074136-134d130e1a04/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210305230114-8fe3ee5dd75b/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210315160823-c6e025ad8005/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
@@ -1132,6 +1114,7 @@ golang.org/x/sys v0.0.0-20210320140829-1e4c9ba3b0c4/go.mod h1:h1NjWce9XRLGQEsW7w
 golang.org/x/sys v0.0.0-20210330210617-4fbd30eecc44/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210420072515-93ed5bcd2bfe/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210423082822-04245dca01da/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
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 golang.org/x/sys v0.0.0-20210510120138-977fb7262007/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20210514084401-e8d321eab015/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
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@@ -1158,9 +1141,11 @@ golang.org/x/sys v0.0.0-20220502124256-b6088ccd6cba/go.mod h1:oPkhp1MJrh7nUepCBc
 golang.org/x/sys v0.0.0-20220503163025-988cb79eb6c6/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20220520151302-bc2c85ada10a/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20220610221304-9f5ed59c137d/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
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-golang.org/x/sys v0.0.0-20220731174439-a90be440212d h1:Sv5ogFZatcgIMMtBSTTAgMYsicp25MXBubjXNDKwm80=
-golang.org/x/sys v0.0.0-20220731174439-a90be440212d/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
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@@ -1179,9 +1164,8 @@ golang.org/x/time v0.0.0-20180412165947-fbb02b2291d2/go.mod h1:tRJNPiyCQ0inRvYxb
 golang.org/x/time v0.0.0-20181108054448-85acf8d2951c/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
 golang.org/x/time v0.0.0-20190308202827-9d24e82272b4/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
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 golang.org/x/tools v0.0.0-20180221164845-07fd8470d635/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
 golang.org/x/tools v0.0.0-20180828015842-6cd1fcedba52/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
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@@ -1228,7 +1212,6 @@ golang.org/x/tools v0.0.0-20200304193943-95d2e580d8eb/go.mod h1:o4KQGtdN14AW+yjs
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 golang.org/x/tools v0.0.0-20200512131952-2bc93b1c0c88/go.mod h1:EkVYQZoAsY45+roYkvgYkIh4xh/qjgUK9TdY2XT94GE=
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@@ -1238,9 +1221,9 @@ golang.org/x/tools v0.0.0-20200904185747-39188db58858/go.mod h1:Cj7w3i3Rnn0Xh82u
 golang.org/x/tools v0.0.0-20201110124207-079ba7bd75cd/go.mod h1:emZCQorbCU4vsT4fOWvOPXz4eW1wZW4PmDk9uLelYpA=
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@@ -1249,16 +1232,17 @@ golang.org/x/tools v0.1.4/go.mod h1:o0xws9oXOQQZyjljx8fwUC0k7L1pTE6eaCbjGeHmOkk=
 golang.org/x/tools v0.1.5/go.mod h1:o0xws9oXOQQZyjljx8fwUC0k7L1pTE6eaCbjGeHmOkk=
 golang.org/x/tools v0.1.6-0.20210726203631-07bc1bf47fb2/go.mod h1:o0xws9oXOQQZyjljx8fwUC0k7L1pTE6eaCbjGeHmOkk=
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-golang.org/x/tools v0.1.13-0.20220908144252-ce397412b6a4 h1:glzimF7qHZuKVEiMbE7UqBu44MyTjt5u6j3Jz+rfMRM=
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+golang.org/x/tools v0.1.12 h1:VveCTK38A2rkS8ZqFY25HIDFscX5X9OoEhJd3quQmXU=
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 golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
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 golang.org/x/xerrors v0.0.0-20220609144429-65e65417b02f/go.mod h1:K8+ghG5WaK9qNqU5K3HdILfMLy1f3aNYFI/wnl100a8=
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+golang.org/x/xerrors v0.0.0-20220907171357-04be3eba64a2/go.mod h1:K8+ghG5WaK9qNqU5K3HdILfMLy1f3aNYFI/wnl100a8=
 google.golang.org/api v0.3.1/go.mod h1:6wY9I6uQWHQ8EM57III9mq/AjF+i8G65rmVagqKMtkk=
 google.golang.org/api v0.4.0/go.mod h1:8k5glujaEP+g9n7WNsDg8QP6cUVNI86fCNMcbazEtwE=
 google.golang.org/api v0.7.0/go.mod h1:WtwebWUNSVBH/HAw79HIFXZNqEvBhG+Ra+ax0hx3E3M=
@@ -1297,8 +1281,8 @@ google.golang.org/api v0.75.0/go.mod h1:pU9QmyHLnzlpar1Mjt4IbapUCy8J+6HD6GeELN69
 google.golang.org/api v0.78.0/go.mod h1:1Sg78yoMLOhlQTeF+ARBoytAcH1NNyyl390YMy6rKmw=
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 google.golang.org/api v0.84.0/go.mod h1:NTsGnUFJMYROtiquksZHBWtHfeMC7iYthki7Eq3pa8o=
-google.golang.org/api v0.91.0 h1:731+JzuwaJoZXRQGmPoBiV+SrsAfUaIkdMCWTcQNPyA=
-google.golang.org/api v0.91.0/go.mod h1:+Sem1dnrKlrXMR/X0bPnMWyluQe4RsNoYfmNLhOIkzw=
+google.golang.org/api v0.96.0 h1:F60cuQPJq7K7FzsxMYHAUJSiXh2oKctHxBMbDygxhfM=
+google.golang.org/api v0.96.0/go.mod h1:w7wJQLTM+wvQpNf5JyEcBoxK0RH7EDrh/L4qfsuJ13s=
 google.golang.org/appengine v1.1.0/go.mod h1:EbEs0AVv82hx2wNQdGPgUI5lhzA/G0D9YwlJXL52JkM=
 google.golang.org/appengine v1.2.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7/EB5XEv4=
 google.golang.org/appengine v1.4.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7/EB5XEv4=
@@ -1343,7 +1327,9 @@ google.golang.org/genproto v0.0.0-20201109203340-2640f1f9cdfb/go.mod h1:FWY/as6D
 google.golang.org/genproto v0.0.0-20201201144952-b05cb90ed32e/go.mod h1:FWY/as6DDZQgahTzZj3fqbO1CbirC29ZNUFHwi0/+no=
 google.golang.org/genproto v0.0.0-20201210142538-e3217bee35cc/go.mod h1:FWY/as6DDZQgahTzZj3fqbO1CbirC29ZNUFHwi0/+no=
 google.golang.org/genproto v0.0.0-20201214200347-8c77b98c765d/go.mod h1:FWY/as6DDZQgahTzZj3fqbO1CbirC29ZNUFHwi0/+no=
+google.golang.org/genproto v0.0.0-20210108203827-ffc7fda8c3d7/go.mod h1:FWY/as6DDZQgahTzZj3fqbO1CbirC29ZNUFHwi0/+no=
 google.golang.org/genproto v0.0.0-20210222152913-aa3ee6e6a81c/go.mod h1:FWY/as6DDZQgahTzZj3fqbO1CbirC29ZNUFHwi0/+no=
+google.golang.org/genproto v0.0.0-20210226172003-ab064af71705/go.mod h1:FWY/as6DDZQgahTzZj3fqbO1CbirC29ZNUFHwi0/+no=
 google.golang.org/genproto v0.0.0-20210303154014-9728d6b83eeb/go.mod h1:FWY/as6DDZQgahTzZj3fqbO1CbirC29ZNUFHwi0/+no=
 google.golang.org/genproto v0.0.0-20210310155132-4ce2db91004e/go.mod h1:FWY/as6DDZQgahTzZj3fqbO1CbirC29ZNUFHwi0/+no=
 google.golang.org/genproto v0.0.0-20210319143718-93e7006c17a6/go.mod h1:FWY/as6DDZQgahTzZj3fqbO1CbirC29ZNUFHwi0/+no=
@@ -1388,8 +1374,8 @@ google.golang.org/genproto v0.0.0-20220523171625-347a074981d8/go.mod h1:RAyBrSAP
 google.golang.org/genproto v0.0.0-20220608133413-ed9918b62aac/go.mod h1:KEWEmljWE5zPzLBa/oHl6DaEt9LmfH6WtH1OHIvleBA=
 google.golang.org/genproto v0.0.0-20220616135557-88e70c0c3a90/go.mod h1:KEWEmljWE5zPzLBa/oHl6DaEt9LmfH6WtH1OHIvleBA=
 google.golang.org/genproto v0.0.0-20220624142145-8cd45d7dbd1f/go.mod h1:KEWEmljWE5zPzLBa/oHl6DaEt9LmfH6WtH1OHIvleBA=
-google.golang.org/genproto v0.0.0-20220802133213-ce4fa296bf78 h1:QntLWYqZeuBtJkth3m/6DLznnI0AHJr+AgJXvVh/izw=
-google.golang.org/genproto v0.0.0-20220802133213-ce4fa296bf78/go.mod h1:iHe1svFLAZg9VWz891+QbRMwUv9O/1Ww+/mngYeThbc=
+google.golang.org/genproto v0.0.0-20220920201722-2b89144ce006 h1:mmbq5q8M1t7dhkLw320YK4PsOXm6jdnUAkErImaIqOg=
+google.golang.org/genproto v0.0.0-20220920201722-2b89144ce006/go.mod h1:ht8XFiar2npT/g4vkk7O0WYS1sHOHbdujxbEp7CJWbw=
 google.golang.org/grpc v1.17.0/go.mod h1:6QZJwpn2B+Zp71q/5VxRsJ6NXXVCE5NRUHRo+f3cWCs=
 google.golang.org/grpc v1.19.0/go.mod h1:mqu4LbDTu4XGKhr4mRzUsmM4RtVoemTSY81AxZiDr8c=
 google.golang.org/grpc v1.20.0/go.mod h1:chYK+tFQF0nDUGJgXMSgLCQk3phJEuONr2DCgLDdAQM=
@@ -1426,8 +1412,8 @@ google.golang.org/grpc v1.45.0/go.mod h1:lN7owxKUQEqMfSyQikvvk5tf/6zMPsrK+ONuO11
 google.golang.org/grpc v1.46.0/go.mod h1:vN9eftEi1UMyUsIF80+uQXhHjbXYbm0uXoFCACuMGWk=
 google.golang.org/grpc v1.46.2/go.mod h1:vN9eftEi1UMyUsIF80+uQXhHjbXYbm0uXoFCACuMGWk=
 google.golang.org/grpc v1.47.0/go.mod h1:vN9eftEi1UMyUsIF80+uQXhHjbXYbm0uXoFCACuMGWk=
-google.golang.org/grpc v1.48.0 h1:rQOsyJ/8+ufEDJd/Gdsz7HG220Mh9HAhFHRGnIjda0w=
-google.golang.org/grpc v1.48.0/go.mod h1:vN9eftEi1UMyUsIF80+uQXhHjbXYbm0uXoFCACuMGWk=
+google.golang.org/grpc v1.49.0 h1:WTLtQzmQori5FUH25Pq4WT22oCsv8USpQ+F6rqtsmxw=
+google.golang.org/grpc v1.49.0/go.mod h1:ZgQEeidpAuNRZ8iRrlBKXZQP1ghovWIVhdJRyCDK+GI=
 google.golang.org/grpc/cmd/protoc-gen-go-grpc v1.1.0/go.mod h1:6Kw0yEErY5E/yWrBtf03jp27GLLJujG4z/JK95pnjjw=
 google.golang.org/protobuf v0.0.0-20200109180630-ec00e32a8dfd/go.mod h1:DFci5gLYBciE7Vtevhsrf46CRTquxDuWsQurQQe4oz8=
 google.golang.org/protobuf v0.0.0-20200221191635-4d8936d0db64/go.mod h1:kwYJMbMJ01Woi6D6+Kah6886xMZcty6N08ah7+eCXa0=
@@ -1459,11 +1445,10 @@ gopkg.in/fsnotify.v1 v1.4.7/go.mod h1:Tz8NjZHkW78fSQdbUxIjBTcgA1z1m8ZHf0WmKUhAMy
 gopkg.in/gcfg.v1 v1.2.3/go.mod h1:yesOnuUOFQAhST5vPY4nbZsb/huCgGGXlipJsBn0b3o=
 gopkg.in/inf.v0 v0.9.1 h1:73M5CoZyi3ZLMOyDlQh031Cx6N9NDJ2Vvfl76EDAgDc=
 gopkg.in/inf.v0 v0.9.1/go.mod h1:cWUDdTG/fYaXco+Dcufb5Vnc6Gp2YChqWtbxRZE0mXw=
-gopkg.in/ini.v1 v1.66.4 h1:SsAcf+mM7mRZo2nJNGt8mZCjG8ZRaNGMURJw7BsIST4=
-gopkg.in/ini.v1 v1.66.4/go.mod h1:pNLf8WUiyNEtQjuu5G5vTm06TEv9tsIgeAvK8hOrP4k=
+gopkg.in/ini.v1 v1.66.6 h1:LATuAqN/shcYAOkv3wl2L4rkaKqkcgTBQjOyYDvcPKI=
+gopkg.in/ini.v1 v1.66.6/go.mod h1:pNLf8WUiyNEtQjuu5G5vTm06TEv9tsIgeAvK8hOrP4k=
 gopkg.in/resty.v1 v1.12.0/go.mod h1:mDo4pnntr5jdWRML875a/NmxYqAlA73dVijT2AXvQQo=
 gopkg.in/telebot.v3 v3.0.0/go.mod h1:7rExV8/0mDDNu9epSrDm/8j22KLaActH1Tbee6YjzWg=
-gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7 h1:uRGJdciOHaEIrze2W8Q3AKkepLTh2hOroT7a+7czfdQ=
 gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7/go.mod h1:dt/ZhP58zS4L8KSrWDmTeBkI65Dw0HsyUHuEVlX15mw=
 gopkg.in/warnings.v0 v0.1.2/go.mod h1:jksf8JmL6Qr/oQM2OXTHunEvvTAsrWBLb6OOjuVWRNI=
 gopkg.in/yaml.v2 v2.0.0-20170812160011-eb3733d160e7/go.mod h1:JAlM8MvJe8wmxCU4Bli9HhUf9+ttbYbLASfIpnQbh74=
@@ -1493,28 +1478,24 @@ honnef.co/go/tools v0.0.0-20190523083050-ea95bdfd59fc/go.mod h1:rf3lG4BRIbNafJWh
 honnef.co/go/tools v0.0.1-2019.2.3/go.mod h1:a3bituU0lyd329TUQxRnasdCoJDkEUEAqEt0JzvZhAg=
 honnef.co/go/tools v0.0.1-2020.1.3/go.mod h1:X/FiERA/W4tHapMX5mGpAtMSVEeEUOyHaw9vFzvIQ3k=
 honnef.co/go/tools v0.0.1-2020.1.4/go.mod h1:X/FiERA/W4tHapMX5mGpAtMSVEeEUOyHaw9vFzvIQ3k=
-k8s.io/api v0.24.3 h1:tt55QEmKd6L2k5DP6G/ZzdMQKvG5ro4H4teClqm0sTY=
-k8s.io/api v0.24.3/go.mod h1:elGR/XSZrS7z7cSZPzVWaycpJuGIw57j9b95/1PdJNI=
-k8s.io/apimachinery v0.24.3 h1:hrFiNSA2cBZqllakVYyH/VyEh4B581bQRmqATJSeQTg=
-k8s.io/apimachinery v0.24.3/go.mod h1:82Bi4sCzVBdpYjyI4jY6aHX+YCUchUIrZrXKedjd2UM=
-k8s.io/client-go v0.24.3 h1:Nl1840+6p4JqkFWEW2LnMKU667BUxw03REfLAVhuKQY=
-k8s.io/client-go v0.24.3/go.mod h1:AAovolf5Z9bY1wIg2FZ8LPQlEdKHjLI7ZD4rw920BJw=
-k8s.io/gengo v0.0.0-20210813121822-485abfe95c7c/go.mod h1:FiNAH4ZV3gBg2Kwh89tzAEV2be7d5xI0vBa/VySYy3E=
-k8s.io/kube-openapi v0.0.0-20220328201542-3ee0da9b0b42 h1:Gii5eqf+GmIEwGNKQYQClCayuJCe2/4fZUvF7VG99sU=
-k8s.io/kube-openapi v0.0.0-20220328201542-3ee0da9b0b42/go.mod h1:Z/45zLw8lUo4wdiUkI+v/ImEGAvu3WatcZl3lPMR4Rk=
-k8s.io/utils v0.0.0-20210802155522-efc7438f0176/go.mod h1:jPW/WVKK9YHAvNhRxK0md/EJ228hCsBRufyofKtW8HA=
-k8s.io/utils v0.0.0-20220210201930-3a6ce19ff2f9 h1:HNSDgDCrr/6Ly3WEGKZftiE7IY19Vz2GdbOCyI4qqhc=
-k8s.io/utils v0.0.0-20220210201930-3a6ce19ff2f9/go.mod h1:jPW/WVKK9YHAvNhRxK0md/EJ228hCsBRufyofKtW8HA=
+k8s.io/api v0.25.2 h1:v6G8RyFcwf0HR5jQGIAYlvtRNrxMJQG1xJzaSeVnIS8=
+k8s.io/api v0.25.2/go.mod h1:qP1Rn4sCVFwx/xIhe+we2cwBLTXNcheRyYXwajonhy0=
+k8s.io/apimachinery v0.25.2 h1:WbxfAjCx+AeN8Ilp9joWnyJ6xu9OMeS/fsfjK/5zaQs=
+k8s.io/apimachinery v0.25.2/go.mod h1:hqqA1X0bsgsxI6dXsJ4HnNTBOmJNxyPp8dw3u2fSHwA=
+k8s.io/client-go v0.25.2 h1:SUPp9p5CwM0yXGQrwYurw9LWz+YtMwhWd0GqOsSiefo=
+k8s.io/client-go v0.25.2/go.mod h1:i7cNU7N+yGQmJkewcRD2+Vuj4iz7b30kI8OcL3horQ4=
+k8s.io/kube-openapi v0.0.0-20220803162953-67bda5d908f1 h1:MQ8BAZPZlWk3S9K4a9NCkIFQtZShWqoha7snGixVgEA=
+k8s.io/kube-openapi v0.0.0-20220803162953-67bda5d908f1/go.mod h1:C/N6wCaBHeBHkHUesQOQy2/MZqGgMAFPqGsGQLdbZBU=
+k8s.io/utils v0.0.0-20220728103510-ee6ede2d64ed h1:jAne/RjBTyawwAy0utX5eqigAwz/lQhTmy+Hr/Cpue4=
+k8s.io/utils v0.0.0-20220728103510-ee6ede2d64ed/go.mod h1:jPW/WVKK9YHAvNhRxK0md/EJ228hCsBRufyofKtW8HA=
 rsc.io/binaryregexp v0.2.0/go.mod h1:qTv7/COck+e2FymRvadv62gMdZztPaShugOCi3I+8D8=
 rsc.io/quote/v3 v3.1.0/go.mod h1:yEA65RcK8LyAZtP9Kv3t0HmxON59tX3rD+tICJqUlj0=
 rsc.io/sampler v1.3.0/go.mod h1:T1hPZKmBbMNahiBKFy5HrXp6adAjACjK9JXDnKaTXpA=
-sigs.k8s.io/json v0.0.0-20211208200746-9f7c6b3444d2 h1:kDi4JBNAsJWfz1aEXhO8Jg87JJaPNLh5tIzYHgStQ9Y=
-sigs.k8s.io/json v0.0.0-20211208200746-9f7c6b3444d2/go.mod h1:B+TnT182UBxE84DiCz4CVE26eOSDAeYCpfDnC2kdKMY=
-sigs.k8s.io/structured-merge-diff/v4 v4.0.2/go.mod h1:bJZC9H9iH24zzfZ/41RGcq60oK1F7G282QMXDPYydCw=
-sigs.k8s.io/structured-merge-diff/v4 v4.2.1 h1:bKCqE9GvQ5tiVHn5rfn1r+yao3aLQEaLzkkmAkf+A6Y=
-sigs.k8s.io/structured-merge-diff/v4 v4.2.1/go.mod h1:j/nl6xW8vLS49O8YvXW1ocPhZawJtm+Yrr7PPRQ0Vg4=
+sigs.k8s.io/json v0.0.0-20220713155537-f223a00ba0e2 h1:iXTIw73aPyC+oRdyqqvVJuloN1p0AC/kzH07hu3NE+k=
+sigs.k8s.io/json v0.0.0-20220713155537-f223a00ba0e2/go.mod h1:B8JuhiUyNFVKdsE8h686QcCxMaH6HrOAZj4vswFpcB0=
+sigs.k8s.io/structured-merge-diff/v4 v4.2.3 h1:PRbqxJClWWYMNV1dhaG4NsibJbArud9kFxnAMREiWFE=
+sigs.k8s.io/structured-merge-diff/v4 v4.2.3/go.mod h1:qjx8mGObPmV2aSZepjQjbmb2ihdVs8cGKBraizNC69E=
 sigs.k8s.io/yaml v1.1.0/go.mod h1:UJmg0vDUVViEyp3mgSv9WPwZCDxu4rQW1olrI1uml+o=
-sigs.k8s.io/yaml v1.2.0/go.mod h1:yfXDCHCao9+ENCvLSE62v9VSji2MKu5jeNfTrofGhJc=
 sigs.k8s.io/yaml v1.3.0 h1:a2VclLzOGrwOHDiV8EfBGhvjHvP46CtW5j6POvhYGGo=
 sigs.k8s.io/yaml v1.3.0/go.mod h1:GeOyir5tyXNByN85N/dRIT9es5UQNerPYEKK56eTBm8=
 sourcegraph.com/sourcegraph/appdash v0.0.0-20190731080439-ebfcffb1b5c0/go.mod h1:hI742Nqp5OhwiqlzhgfbWU4mW4yO10fP+LoT9WOswdU=

model/labels/labels.go

@@ -333,6 +333,11 @@ func (ls Labels) Map() map[string]string {
 	return m
 }
 
+// EmptyLabels returns n empty Labels value, for convenience.
+func EmptyLabels() Labels {
+	return Labels{}
+}
+
 // New returns a sorted Labels from the given labels.
 // The caller has to guarantee that all label names are unique.
 func New(ls ...Label) Labels {
@@ -467,17 +472,25 @@ func (b *Builder) Set(n, v string) *Builder {
 	return b
 }
 
-// Labels returns the labels from the builder. If no modifications
-// were made, the original labels are returned.
-func (b *Builder) Labels() Labels {
+// Labels returns the labels from the builder, adding them to res if non-nil.
+// Argument res can be the same as b.base, if caller wants to overwrite that slice.
+// If no modifications were made, the original labels are returned.
+func (b *Builder) Labels(res Labels) Labels {
 	if len(b.del) == 0 && len(b.add) == 0 {
 		return b.base
 	}
 
-	// In the general case, labels are removed, modified or moved
-	// rather than added.
-	res := make(Labels, 0, len(b.base))
+	if res == nil {
+		// In the general case, labels are removed, modified or moved
+		// rather than added.
+		res = make(Labels, 0, len(b.base))
+	} else {
+		res = res[:0]
+	}
 Outer:
+	// Justification that res can be the same slice as base: in this loop
+	// we move forward through base, and either skip an element or assign
+	// it to res at its current position or an earlier position.
 	for _, l := range b.base {
 		for _, n := range b.del {
 			if l.Name == n {

model/labels/labels_test.go

@@ -20,7 +20,7 @@ import (
 	"testing"
 
 	"github.com/stretchr/testify/require"
-	yaml "gopkg.in/yaml.v2"
+	"gopkg.in/yaml.v2"
 )
 
 func TestLabels_String(t *testing.T) {
@@ -29,16 +29,7 @@ func TestLabels_String(t *testing.T) {
 		expected string
 	}{
 		{
-			lables: Labels{
-				{
-					Name:  "t1",
-					Value: "t1",
-				},
-				{
-					Name:  "t2",
-					Value: "t2",
-				},
-			},
+			lables:   FromStrings("t1", "t1", "t2", "t2"),
 			expected: "{t1=\"t1\", t2=\"t2\"}",
 		},
 		{
@@ -57,32 +48,13 @@ func TestLabels_String(t *testing.T) {
 }
 
 func TestLabels_MatchLabels(t *testing.T) {
-	labels := Labels{
-		{
-			Name:  "__name__",
-			Value: "ALERTS",
-		},
-		{
-			Name:  "alertname",
-			Value: "HTTPRequestRateLow",
-		},
-		{
-			Name:  "alertstate",
-			Value: "pending",
-		},
-		{
-			Name:  "instance",
-			Value: "0",
-		},
-		{
-			Name:  "job",
-			Value: "app-server",
-		},
-		{
-			Name:  "severity",
-			Value: "critical",
-		},
-	}
+	labels := FromStrings(
+		"__name__", "ALERTS",
+		"alertname", "HTTPRequestRateLow",
+		"alertstate", "pending",
+		"instance", "0",
+		"job", "app-server",
+		"severity", "critical")
 
 	tests := []struct {
 		providedNames []string
@@ -98,24 +70,11 @@ func TestLabels_MatchLabels(t *testing.T) {
 				"instance",
 			},
 			on: true,
-			expected: Labels{
-				{
-					Name:  "__name__",
-					Value: "ALERTS",
-				},
-				{
-					Name:  "alertname",
-					Value: "HTTPRequestRateLow",
-				},
-				{
-					Name:  "alertstate",
-					Value: "pending",
-				},
-				{
-					Name:  "instance",
-					Value: "0",
-				},
-			},
+			expected: FromStrings(
+				"__name__", "ALERTS",
+				"alertname", "HTTPRequestRateLow",
+				"alertstate", "pending",
+				"instance", "0"),
 		},
 		// on = false, explicitly excluding metric name from matching.
 		{
@@ -126,16 +85,9 @@ func TestLabels_MatchLabels(t *testing.T) {
 				"instance",
 			},
 			on: false,
-			expected: Labels{
-				{
-					Name:  "job",
-					Value: "app-server",
-				},
-				{
-					Name:  "severity",
-					Value: "critical",
-				},
-			},
+			expected: FromStrings(
+				"job", "app-server",
+				"severity", "critical"),
 		},
 		// on = true, explicitly excluding metric name from matching.
 		{
@@ -145,20 +97,10 @@ func TestLabels_MatchLabels(t *testing.T) {
 				"instance",
 			},
 			on: true,
-			expected: Labels{
-				{
-					Name:  "alertname",
-					Value: "HTTPRequestRateLow",
-				},
-				{
-					Name:  "alertstate",
-					Value: "pending",
-				},
-				{
-					Name:  "instance",
-					Value: "0",
-				},
-			},
+			expected: FromStrings(
+				"alertname", "HTTPRequestRateLow",
+				"alertstate", "pending",
+				"instance", "0"),
 		},
 		// on = false, implicitly excluding metric name from matching.
 		{
@@ -168,16 +110,9 @@ func TestLabels_MatchLabels(t *testing.T) {
 				"instance",
 			},
 			on: false,
-			expected: Labels{
-				{
-					Name:  "job",
-					Value: "app-server",
-				},
-				{
-					Name:  "severity",
-					Value: "critical",
-				},
-			},
+			expected: FromStrings(
+				"job", "app-server",
+				"severity", "critical"),
 		},
 	}
 
@@ -197,10 +132,7 @@ func TestLabels_HasDuplicateLabelNames(t *testing.T) {
 			Input:     FromMap(map[string]string{"__name__": "up", "hostname": "localhost"}),
 			Duplicate: false,
 		}, {
-			Input: append(
-				FromMap(map[string]string{"__name__": "up", "hostname": "localhost"}),
-				FromMap(map[string]string{"hostname": "127.0.0.1"})...,
-			),
+			Input:     FromStrings("__name__", "up", "hostname", "localhost", "hostname", "127.0.0.1"),
 			Duplicate: true,
 			LabelName: "hostname",
 		},
@@ -219,73 +151,63 @@ func TestLabels_WithoutEmpty(t *testing.T) {
 		expected Labels
 	}{
 		{
-			input: Labels{
-				{Name: "foo"},
-				{Name: "bar"},
-			},
-			expected: Labels{},
+			input: FromStrings(
+				"foo", "",
+				"bar", ""),
+			expected: EmptyLabels(),
 		},
 		{
-			input: Labels{
-				{Name: "foo"},
-				{Name: "bar"},
-				{Name: "baz"},
-			},
-			expected: Labels{},
+			input: FromStrings(
+				"foo", "",
+				"bar", "",
+				"baz", ""),
+			expected: EmptyLabels(),
 		},
 		{
-			input: Labels{
-				{Name: "__name__", Value: "test"},
-				{Name: "hostname", Value: "localhost"},
-				{Name: "job", Value: "check"},
-			},
-			expected: Labels{
-				{Name: "__name__", Value: "test"},
-				{Name: "hostname", Value: "localhost"},
-				{Name: "job", Value: "check"},
-			},
+			input: FromStrings(
+				"__name__", "test",
+				"hostname", "localhost",
+				"job", "check"),
+			expected: FromStrings(
+				"__name__", "test",
+				"hostname", "localhost",
+				"job", "check"),
 		},
 		{
-			input: Labels{
-				{Name: "__name__", Value: "test"},
-				{Name: "hostname", Value: "localhost"},
-				{Name: "bar"},
-				{Name: "job", Value: "check"},
-			},
-			expected: Labels{
-				{Name: "__name__", Value: "test"},
-				{Name: "hostname", Value: "localhost"},
-				{Name: "job", Value: "check"},
-			},
+			input: FromStrings(
+				"__name__", "test",
+				"hostname", "localhost",
+				"bar", "",
+				"job", "check"),
+			expected: FromStrings(
+				"__name__", "test",
+				"hostname", "localhost",
+				"job", "check"),
 		},
 		{
-			input: Labels{
-				{Name: "__name__", Value: "test"},
-				{Name: "foo"},
-				{Name: "hostname", Value: "localhost"},
-				{Name: "bar"},
-				{Name: "job", Value: "check"},
-			},
-			expected: Labels{
-				{Name: "__name__", Value: "test"},
-				{Name: "hostname", Value: "localhost"},
-				{Name: "job", Value: "check"},
-			},
+			input: FromStrings(
+				"__name__", "test",
+				"foo", "",
+				"hostname", "localhost",
+				"bar", "",
+				"job", "check"),
+			expected: FromStrings(
+				"__name__", "test",
+				"hostname", "localhost",
+				"job", "check"),
 		},
 		{
-			input: Labels{
-				{Name: "__name__", Value: "test"},
-				{Name: "foo"},
-				{Name: "baz"},
-				{Name: "hostname", Value: "localhost"},
-				{Name: "bar"},
-				{Name: "job", Value: "check"},
-			},
-			expected: Labels{
-				{Name: "__name__", Value: "test"},
-				{Name: "hostname", Value: "localhost"},
-				{Name: "job", Value: "check"},
-			},
+			input: FromStrings(
+				"__name__", "test",
+				"foo", "",
+				"baz", "",
+				"hostname", "localhost",
+				"bar", "",
+				"job", "check"),
+			expected: FromStrings(
+				"__name__", "test",
+				"hostname", "localhost",
+				"job", "check"),
 		},
 	} {
 		t.Run("", func(t *testing.T) {
@@ -295,75 +217,37 @@ func TestLabels_WithoutEmpty(t *testing.T) {
 }
 
 func TestLabels_Equal(t *testing.T) {
-	labels := Labels{
-		{
-			Name:  "aaa",
-			Value: "111",
-		},
-		{
-			Name:  "bbb",
-			Value: "222",
-		},
-	}
+	labels := FromStrings(
+		"aaa", "111",
+		"bbb", "222")
 
 	tests := []struct {
 		compared Labels
 		expected bool
 	}{
 		{
-			compared: Labels{
-				{
-					Name:  "aaa",
-					Value: "111",
-				},
-				{
-					Name:  "bbb",
-					Value: "222",
-				},
-				{
-					Name:  "ccc",
-					Value: "333",
-				},
-			},
+			compared: FromStrings(
+				"aaa", "111",
+				"bbb", "222",
+				"ccc", "333"),
 			expected: false,
 		},
 		{
-			compared: Labels{
-				{
-					Name:  "aaa",
-					Value: "111",
-				},
-				{
-					Name:  "bar",
-					Value: "222",
-				},
-			},
+			compared: FromStrings(
+				"aaa", "111",
+				"bar", "222"),
 			expected: false,
 		},
 		{
-			compared: Labels{
-				{
-					Name:  "aaa",
-					Value: "111",
-				},
-				{
-					Name:  "bbb",
-					Value: "233",
-				},
-			},
+			compared: FromStrings(
+				"aaa", "111",
+				"bbb", "233"),
 			expected: false,
 		},
 		{
-			compared: Labels{
-				{
-					Name:  "aaa",
-					Value: "111",
-				},
-				{
-					Name:  "bbb",
-					Value: "222",
-				},
-			},
+			compared: FromStrings(
+				"aaa", "111",
+				"bbb", "222"),
 			expected: true,
 		},
 	}
@@ -393,114 +277,55 @@ func TestLabels_FromStrings(t *testing.T) {
 }
 
 func TestLabels_Compare(t *testing.T) {
-	labels := Labels{
-		{
-			Name:  "aaa",
-			Value: "111",
-		},
-		{
-			Name:  "bbb",
-			Value: "222",
-		},
-	}
+	labels := FromStrings(
+		"aaa", "111",
+		"bbb", "222")
 
 	tests := []struct {
 		compared Labels
 		expected int
 	}{
 		{
-			compared: Labels{
-				{
-					Name:  "aaa",
-					Value: "110",
-				},
-				{
-					Name:  "bbb",
-					Value: "222",
-				},
-			},
+			compared: FromStrings(
+				"aaa", "110",
+				"bbb", "222"),
 			expected: 1,
 		},
 		{
-			compared: Labels{
-				{
-					Name:  "aaa",
-					Value: "111",
-				},
-				{
-					Name:  "bbb",
-					Value: "233",
-				},
-			},
+			compared: FromStrings(
+				"aaa", "111",
+				"bbb", "233"),
 			expected: -1,
 		},
 		{
-			compared: Labels{
-				{
-					Name:  "aaa",
-					Value: "111",
-				},
-				{
-					Name:  "bar",
-					Value: "222",
-				},
-			},
+			compared: FromStrings(
+				"aaa", "111",
+				"bar", "222"),
 			expected: 1,
 		},
 		{
-			compared: Labels{
-				{
-					Name:  "aaa",
-					Value: "111",
-				},
-				{
-					Name:  "bbc",
-					Value: "222",
-				},
-			},
+			compared: FromStrings(
+				"aaa", "111",
+				"bbc", "222"),
 			expected: -1,
 		},
 		{
-			compared: Labels{
-				{
-					Name:  "aaa",
-					Value: "111",
-				},
-			},
+			compared: FromStrings(
+				"aaa", "111"),
 			expected: 1,
 		},
 		{
-			compared: Labels{
-				{
-					Name:  "aaa",
-					Value: "111",
-				},
-				{
-					Name:  "bbb",
-					Value: "222",
-				},
-				{
-					Name:  "ccc",
-					Value: "333",
-				},
-				{
-					Name:  "ddd",
-					Value: "444",
-				},
-			},
+			compared: FromStrings(
+				"aaa", "111",
+				"bbb", "222",
+				"ccc", "333",
+				"ddd", "444"),
 			expected: -2,
 		},
 		{
-			compared: Labels{
-				{
-					Name:  "aaa",
-					Value: "111",
-				},
-				{
-					Name:  "bbb",
-					Value: "222",
-				},
-			},
+			compared: FromStrings(
+				"aaa", "111",
+				"bbb", "222"),
 			expected: 0,
 		},
 	}
@@ -536,16 +361,9 @@ func TestLabels_Has(t *testing.T) {
 		},
 	}
 
-	labelsSet := Labels{
-		{
-			Name:  "aaa",
-			Value: "111",
-		},
-		{
-			Name:  "bbb",
-			Value: "222",
-		},
-	}
+	labelsSet := FromStrings(
+		"aaa", "111",
+		"bbb", "222")
 
 	for i, test := range tests {
 		got := labelsSet.Has(test.input)
@@ -554,8 +372,8 @@ func TestLabels_Has(t *testing.T) {
 }
 
 func TestLabels_Get(t *testing.T) {
-	require.Equal(t, "", Labels{{"aaa", "111"}, {"bbb", "222"}}.Get("foo"))
-	require.Equal(t, "111", Labels{{"aaa", "111"}, {"bbb", "222"}}.Get("aaa"))
+	require.Equal(t, "", FromStrings("aaa", "111", "bbb", "222").Get("foo"))
+	require.Equal(t, "111", FromStrings("aaa", "111", "bbb", "222").Get("aaa"))
 }
 
 // BenchmarkLabels_Get was written to check whether a binary search can improve the performance vs the linear search implementation
@@ -605,18 +423,18 @@ func BenchmarkLabels_Equals(b *testing.B) {
 	}{
 		{
 			"equal",
-			Labels{{"a_label_name", "a_label_value"}, {"another_label_name", "another_label_value"}},
-			Labels{{"a_label_name", "a_label_value"}, {"another_label_name", "another_label_value"}},
+			FromStrings("a_label_name", "a_label_value", "another_label_name", "another_label_value"),
+			FromStrings("a_label_name", "a_label_value", "another_label_name", "another_label_value"),
 		},
 		{
 			"not equal",
-			Labels{{"a_label_name", "a_label_value"}, {"another_label_name", "another_label_value"}},
-			Labels{{"a_label_name", "a_label_value"}, {"another_label_name", "a_different_label_value"}},
+			FromStrings("a_label_name", "a_label_value", "another_label_name", "another_label_value"),
+			FromStrings("a_label_name", "a_label_value", "another_label_name", "a_different_label_value"),
 		},
 		{
 			"different sizes",
-			Labels{{"a_label_name", "a_label_value"}, {"another_label_name", "another_label_value"}},
-			Labels{{"a_label_name", "a_label_value"}},
+			FromStrings("a_label_name", "a_label_value", "another_label_name", "another_label_value"),
+			FromStrings("a_label_name", "a_label_value"),
 		},
 	} {
 		b.Run(scenario.desc, func(b *testing.B) {
@@ -629,22 +447,22 @@ func BenchmarkLabels_Equals(b *testing.B) {
 }
 
 func TestLabels_Copy(t *testing.T) {
-	require.Equal(t, Labels{{"aaa", "111"}, {"bbb", "222"}}, Labels{{"aaa", "111"}, {"bbb", "222"}}.Copy())
+	require.Equal(t, FromStrings("aaa", "111", "bbb", "222"), FromStrings("aaa", "111", "bbb", "222").Copy())
 }
 
 func TestLabels_Map(t *testing.T) {
-	require.Equal(t, map[string]string{"aaa": "111", "bbb": "222"}, Labels{{"aaa", "111"}, {"bbb", "222"}}.Map())
+	require.Equal(t, map[string]string{"aaa": "111", "bbb": "222"}, FromStrings("aaa", "111", "bbb", "222").Map())
 }
 
 func TestLabels_BytesWithLabels(t *testing.T) {
-	require.Equal(t, Labels{{"aaa", "111"}, {"bbb", "222"}}.Bytes(nil), Labels{{"aaa", "111"}, {"bbb", "222"}, {"ccc", "333"}}.BytesWithLabels(nil, "aaa", "bbb"))
-	require.Equal(t, Labels{}.Bytes(nil), Labels{{"aaa", "111"}, {"bbb", "222"}, {"ccc", "333"}}.BytesWithLabels(nil))
+	require.Equal(t, FromStrings("aaa", "111", "bbb", "222").Bytes(nil), FromStrings("aaa", "111", "bbb", "222", "ccc", "333").BytesWithLabels(nil, "aaa", "bbb"))
+	require.Equal(t, FromStrings().Bytes(nil), FromStrings("aaa", "111", "bbb", "222", "ccc", "333").BytesWithLabels(nil))
 }
 
 func TestLabels_BytesWithoutLabels(t *testing.T) {
-	require.Equal(t, Labels{{"aaa", "111"}}.Bytes(nil), Labels{{"aaa", "111"}, {"bbb", "222"}, {"ccc", "333"}}.BytesWithoutLabels(nil, "bbb", "ccc"))
-	require.Equal(t, Labels{{MetricName, "333"}, {"aaa", "111"}}.Bytes(nil), Labels{{MetricName, "333"}, {"aaa", "111"}, {"bbb", "222"}}.BytesWithoutLabels(nil, "bbb"))
-	require.Equal(t, Labels{{"aaa", "111"}}.Bytes(nil), Labels{{MetricName, "333"}, {"aaa", "111"}, {"bbb", "222"}}.BytesWithoutLabels(nil, MetricName, "bbb"))
+	require.Equal(t, FromStrings("aaa", "111").Bytes(nil), FromStrings("aaa", "111", "bbb", "222", "ccc", "333").BytesWithoutLabels(nil, "bbb", "ccc"))
+	require.Equal(t, FromStrings(MetricName, "333", "aaa", "111").Bytes(nil), FromStrings(MetricName, "333", "aaa", "111", "bbb", "222").BytesWithoutLabels(nil, "bbb"))
+	require.Equal(t, FromStrings("aaa", "111").Bytes(nil), FromStrings(MetricName, "333", "aaa", "111", "bbb", "222").BytesWithoutLabels(nil, MetricName, "bbb"))
 }
 
 func TestBuilder(t *testing.T) {
@@ -722,17 +540,15 @@ func TestBuilder(t *testing.T) {
 				b.Keep(tcase.keep...)
 			}
 			b.Del(tcase.del...)
-			require.Equal(t, tcase.want, b.Labels())
+			require.Equal(t, tcase.want, b.Labels(tcase.base))
 		})
 	}
 }
 
 func TestLabels_Hash(t *testing.T) {
-	lbls := Labels{
-		{Name: "foo", Value: "bar"},
-		{Name: "baz", Value: "qux"},
-	}
+	lbls := FromStrings("foo", "bar", "baz", "qux")
 	require.Equal(t, lbls.Hash(), lbls.Hash())
+	require.NotEqual(t, lbls.Hash(), Labels{lbls[1], lbls[0]}.Hash(), "unordered labels match.")
 	require.NotEqual(t, lbls.Hash(), Labels{lbls[0]}.Hash(), "different labels match.")
 }
 
@@ -746,23 +562,23 @@ func BenchmarkLabels_Hash(b *testing.B) {
 		{
 			name: "typical labels under 1KB",
 			lbls: func() Labels {
-				lbls := make(Labels, 10)
-				for i := 0; i < len(lbls); i++ {
+				b := NewBuilder(EmptyLabels())
+				for i := 0; i < 10; i++ {
 					// Label ~20B name, 50B value.
-					lbls[i] = Label{Name: fmt.Sprintf("abcdefghijabcdefghijabcdefghij%d", i), Value: fmt.Sprintf("abcdefghijabcdefghijabcdefghijabcdefghijabcdefghij%d", i)}
+					b.Set(fmt.Sprintf("abcdefghijabcdefghijabcdefghij%d", i), fmt.Sprintf("abcdefghijabcdefghijabcdefghijabcdefghijabcdefghij%d", i))
 				}
-				return lbls
+				return b.Labels(nil)
 			}(),
 		},
 		{
 			name: "bigger labels over 1KB",
 			lbls: func() Labels {
-				lbls := make(Labels, 10)
-				for i := 0; i < len(lbls); i++ {
+				b := NewBuilder(EmptyLabels())
+				for i := 0; i < 10; i++ {
 					// Label ~50B name, 50B value.
-					lbls[i] = Label{Name: fmt.Sprintf("abcdefghijabcdefghijabcdefghijabcdefghijabcdefghij%d", i), Value: fmt.Sprintf("abcdefghijabcdefghijabcdefghijabcdefghijabcdefghij%d", i)}
+					b.Set(fmt.Sprintf("abcdefghijabcdefghijabcdefghijabcdefghijabcdefghij%d", i), fmt.Sprintf("abcdefghijabcdefghijabcdefghijabcdefghijabcdefghij%d", i))
 				}
-				return lbls
+				return b.Labels(nil)
 			}(),
 		},
 		{
@@ -774,7 +590,7 @@ func BenchmarkLabels_Hash(b *testing.B) {
 				for i := 0; i < lbl.Cap()/len(word); i++ {
 					_, _ = lbl.WriteString(word)
 				}
-				return Labels{{Name: "__name__", Value: lbl.String()}}
+				return FromStrings("__name__", lbl.String())
 			}(),
 		},
 	} {

model/relabel/relabel.go

@@ -192,24 +192,29 @@ func (re Regexp) String() string {
 // are applied in order of input.
 // If a label set is dropped, nil is returned.
 // May return the input labelSet modified.
-func Process(labels labels.Labels, cfgs ...*Config) labels.Labels {
+func Process(lbls labels.Labels, cfgs ...*Config) labels.Labels {
+	lb := labels.NewBuilder(nil)
 	for _, cfg := range cfgs {
-		labels = relabel(labels, cfg)
-		if labels == nil {
+		lbls = relabel(lbls, cfg, lb)
+		if lbls == nil {
 			return nil
 		}
 	}
-	return labels
+	return lbls
 }
 
-func relabel(lset labels.Labels, cfg *Config) labels.Labels {
-	values := make([]string, 0, len(cfg.SourceLabels))
+func relabel(lset labels.Labels, cfg *Config, lb *labels.Builder) labels.Labels {
+	var va [16]string
+	values := va[:0]
+	if len(cfg.SourceLabels) > cap(values) {
+		values = make([]string, 0, len(cfg.SourceLabels))
+	}
 	for _, ln := range cfg.SourceLabels {
 		values = append(values, lset.Get(string(ln)))
 	}
 	val := strings.Join(values, cfg.Separator)
 
-	lb := labels.NewBuilder(lset)
+	lb.Reset(lset)
 
 	switch cfg.Action {
 	case Drop:
@@ -267,7 +272,7 @@ func relabel(lset labels.Labels, cfg *Config) labels.Labels {
 		panic(fmt.Errorf("relabel: unknown relabel action type %q", cfg.Action))
 	}
 
-	return lb.Labels()
+	return lb.Labels(lset)
 }
 
 // sum64 sums the md5 hash to an uint64.

model/relabel/relabel_test.go

@@ -18,6 +18,7 @@ import (
 
 	"github.com/prometheus/common/model"
 	"github.com/stretchr/testify/require"
+	"gopkg.in/yaml.v2"
 
 	"github.com/prometheus/prometheus/model/labels"
 )
@@ -500,3 +501,160 @@ func TestTargetLabelValidity(t *testing.T) {
 			"Expected %q to be %v", test.str, test.valid)
 	}
 }
+
+func BenchmarkRelabel(b *testing.B) {
+	tests := []struct {
+		name   string
+		lbls   labels.Labels
+		config string
+		cfgs   []*Config
+	}{
+		{
+			name: "example", // From prometheus/config/testdata/conf.good.yml.
+			config: `
+            - source_labels: [job, __meta_dns_name]
+              regex: "(.*)some-[regex]"
+              target_label: job
+              replacement: foo-${1}
+              # action defaults to 'replace'
+            - source_labels: [abc]
+              target_label: cde
+            - replacement: static
+              target_label: abc
+            - regex:
+              replacement: static
+              target_label: abc`,
+			lbls: labels.FromStrings("__meta_dns_name", "example-some-x.com", "abc", "def", "job", "foo"),
+		},
+		{
+			name: "kubernetes",
+			config: `
+        - source_labels:
+            - __meta_kubernetes_pod_container_port_name
+          regex: .*-metrics
+          action: keep
+        - source_labels:
+            - __meta_kubernetes_pod_label_name
+          action: drop
+          regex: ""
+        - source_labels:
+            - __meta_kubernetes_pod_phase
+          regex: Succeeded|Failed
+          action: drop
+        - source_labels:
+            - __meta_kubernetes_pod_annotation_prometheus_io_scrape
+          regex: "false"
+          action: drop
+        - source_labels:
+            - __meta_kubernetes_pod_annotation_prometheus_io_scheme
+          target_label: __scheme__
+          regex: (https?)
+          replacement: $1
+          action: replace
+        - source_labels:
+            - __meta_kubernetes_pod_annotation_prometheus_io_path
+          target_label: __metrics_path__
+          regex: (.+)
+          replacement: $1
+          action: replace
+        - source_labels:
+            - __address__
+            - __meta_kubernetes_pod_annotation_prometheus_io_port
+          target_label: __address__
+          regex: (.+?)(\:\d+)?;(\d+)
+          replacement: $1:$3
+          action: replace
+        - regex: __meta_kubernetes_pod_annotation_prometheus_io_param_(.+)
+          replacement: __param_$1
+          action: labelmap
+        - regex: __meta_kubernetes_pod_label_prometheus_io_label_(.+)
+          action: labelmap
+        - regex: __meta_kubernetes_pod_annotation_prometheus_io_label_(.+)
+          action: labelmap
+        - source_labels:
+            - __meta_kubernetes_namespace
+            - __meta_kubernetes_pod_label_name
+          separator: /
+          target_label: job
+          replacement: $1
+          action: replace
+        - source_labels:
+          - __meta_kubernetes_namespace
+          target_label: namespace
+          action: replace
+        - source_labels:
+            - __meta_kubernetes_pod_name
+          target_label: pod
+          action: replace
+        - source_labels:
+            - __meta_kubernetes_pod_container_name
+          target_label: container
+          action: replace
+        - source_labels:
+            - __meta_kubernetes_pod_name
+            - __meta_kubernetes_pod_container_name
+            - __meta_kubernetes_pod_container_port_name
+          separator: ':'
+          target_label: instance
+          action: replace
+        - target_label: cluster
+          replacement: dev-us-central-0
+        - source_labels:
+            - __meta_kubernetes_namespace
+          regex: hosted-grafana
+          action: drop
+        - source_labels:
+            - __address__
+          target_label: __tmp_hash
+          modulus: 3
+          action: hashmod
+        - source_labels:
+            - __tmp_hash
+          regex: ^0$
+          action: keep
+        - regex: __tmp_hash
+          action: labeldrop`,
+			lbls: labels.FromStrings(
+				"__address__", "10.132.183.40:80",
+				"__meta_kubernetes_namespace", "loki-boltdb-shipper",
+				"__meta_kubernetes_pod_annotation_promtail_loki_boltdb_shipper_hash", "50523b9759094a144adcec2eae0aa4ad",
+				"__meta_kubernetes_pod_annotationpresent_promtail_loki_boltdb_shipper_hash", "true",
+				"__meta_kubernetes_pod_container_init", "false",
+				"__meta_kubernetes_pod_container_name", "promtail",
+				"__meta_kubernetes_pod_container_port_name", "http-metrics",
+				"__meta_kubernetes_pod_container_port_number", "80",
+				"__meta_kubernetes_pod_container_port_protocol", "TCP",
+				"__meta_kubernetes_pod_controller_kind", "DaemonSet",
+				"__meta_kubernetes_pod_controller_name", "promtail-loki-boltdb-shipper",
+				"__meta_kubernetes_pod_host_ip", "10.128.0.178",
+				"__meta_kubernetes_pod_ip", "10.132.183.40",
+				"__meta_kubernetes_pod_label_controller_revision_hash", "555b77cd7d",
+				"__meta_kubernetes_pod_label_name", "promtail-loki-boltdb-shipper",
+				"__meta_kubernetes_pod_label_pod_template_generation", "45",
+				"__meta_kubernetes_pod_labelpresent_controller_revision_hash", "true",
+				"__meta_kubernetes_pod_labelpresent_name", "true",
+				"__meta_kubernetes_pod_labelpresent_pod_template_generation", "true",
+				"__meta_kubernetes_pod_name", "promtail-loki-boltdb-shipper-jgtr7",
+				"__meta_kubernetes_pod_node_name", "gke-dev-us-central-0-main-n2s8-2-14d53341-9hkr",
+				"__meta_kubernetes_pod_phase", "Running",
+				"__meta_kubernetes_pod_ready", "true",
+				"__meta_kubernetes_pod_uid", "4c586419-7f6c-448d-aeec-ca4fa5b05e60",
+				"__metrics_path__", "/metrics",
+				"__scheme__", "http",
+				"__scrape_interval__", "15s",
+				"__scrape_timeout__", "10s",
+				"job", "kubernetes-pods"),
+		},
+	}
+	for i := range tests {
+		err := yaml.UnmarshalStrict([]byte(tests[i].config), &tests[i].cfgs)
+		require.NoError(b, err)
+	}
+	for _, tt := range tests {
+		b.Run(tt.name, func(b *testing.B) {
+			for i := 0; i < b.N; i++ {
+				_ = Process(tt.lbls, tt.cfgs...)
+			}
+		})
+	}
+}

model/rulefmt/rulefmt.go

@@ -24,7 +24,7 @@ import (
 	"time"
 
 	"github.com/prometheus/common/model"
-	yaml "gopkg.in/yaml.v3"
+	"gopkg.in/yaml.v3"
 
 	"github.com/prometheus/prometheus/model/timestamp"
 	"github.com/prometheus/prometheus/promql/parser"

model/textparse/openmetricsparse_test.go

@@ -595,7 +595,7 @@ func TestOMNullByteHandling(t *testing.T) {
 		},
 		{
 			input: "a{b\x00=\"hiih\"}	1",
-			err: "expected equal, got \"INVALID\"",
+			err:   "expected equal, got \"INVALID\"",
 		},
 		{
 			input: "a\x00{b=\"ddd\"} 1",

model/textparse/promparse_test.go

@@ -322,7 +322,7 @@ func TestPromNullByteHandling(t *testing.T) {
 		},
 		{
 			input: "a{b\x00=\"hiih\"}	1",
-			err: "expected equal, got \"INVALID\"",
+			err:   "expected equal, got \"INVALID\"",
 		},
 		{
 			input: "a\x00{b=\"ddd\"} 1",
@@ -367,7 +367,7 @@ func BenchmarkParse(b *testing.B) {
 			b.Run(parserName+"/no-decode-metric/"+fn, func(b *testing.B) {
 				total := 0
 
-				b.SetBytes(int64(len(buf) * (b.N / promtestdataSampleCount)))
+				b.SetBytes(int64(len(buf) / promtestdataSampleCount))
 				b.ReportAllocs()
 				b.ResetTimer()
 
@@ -395,7 +395,7 @@ func BenchmarkParse(b *testing.B) {
 			b.Run(parserName+"/decode-metric/"+fn, func(b *testing.B) {
 				total := 0
 
-				b.SetBytes(int64(len(buf) * (b.N / promtestdataSampleCount)))
+				b.SetBytes(int64(len(buf) / promtestdataSampleCount))
 				b.ReportAllocs()
 				b.ResetTimer()
 
@@ -428,7 +428,7 @@ func BenchmarkParse(b *testing.B) {
 				total := 0
 				res := make(labels.Labels, 0, 5)
 
-				b.SetBytes(int64(len(buf) * (b.N / promtestdataSampleCount)))
+				b.SetBytes(int64(len(buf) / promtestdataSampleCount))
 				b.ReportAllocs()
 				b.ResetTimer()
 
@@ -458,7 +458,10 @@ func BenchmarkParse(b *testing.B) {
 				_ = total
 			})
 			b.Run("expfmt-text/"+fn, func(b *testing.B) {
-				b.SetBytes(int64(len(buf) * (b.N / promtestdataSampleCount)))
+				if parserName != "prometheus" {
+					b.Skip()
+				}
+				b.SetBytes(int64(len(buf) / promtestdataSampleCount))
 				b.ReportAllocs()
 				b.ResetTimer()
 
@@ -507,7 +510,7 @@ func BenchmarkGzip(b *testing.B) {
 			k := b.N / promtestdataSampleCount
 
 			b.ReportAllocs()
-			b.SetBytes(int64(k) * int64(n))
+			b.SetBytes(int64(n) / promtestdataSampleCount)
 			b.ResetTimer()
 
 			total := 0

notifier/notifier.go

@@ -361,7 +361,7 @@ func (n *Manager) Send(alerts ...*Alert) {
 			}
 		}
 
-		a.Labels = lb.Labels()
+		a.Labels = lb.Labels(a.Labels)
 	}
 
 	alerts = n.relabelAlerts(alerts)

notifier/notifier_test.go

@@ -31,7 +31,7 @@ import (
 	"github.com/prometheus/common/model"
 	"github.com/stretchr/testify/require"
 	"go.uber.org/atomic"
-	yaml "gopkg.in/yaml.v2"
+	"gopkg.in/yaml.v2"
 
 	"github.com/prometheus/prometheus/config"
 	"github.com/prometheus/prometheus/discovery/targetgroup"
@@ -243,7 +243,7 @@ func TestCustomDo(t *testing.T) {
 func TestExternalLabels(t *testing.T) {
 	h := NewManager(&Options{
 		QueueCapacity:  3 * maxBatchSize,
-		ExternalLabels: labels.Labels{{Name: "a", Value: "b"}},
+		ExternalLabels: labels.FromStrings("a", "b"),
 		RelabelConfigs: []*relabel.Config{
 			{
 				SourceLabels: model.LabelNames{"alertname"},
@@ -570,7 +570,7 @@ func makeInputTargetGroup() *targetgroup.Group {
 }
 
 func TestLabelsToOpenAPILabelSet(t *testing.T) {
-	require.Equal(t, models.LabelSet{"aaa": "111", "bbb": "222"}, labelsToOpenAPILabelSet(labels.Labels{{Name: "aaa", Value: "111"}, {Name: "bbb", Value: "222"}}))
+	require.Equal(t, models.LabelSet{"aaa": "111", "bbb": "222"}, labelsToOpenAPILabelSet(labels.FromStrings("aaa", "111", "bbb", "222")))
 }
 
 // TestHangingNotifier validates that targets updates happen even when there are

promql/engine.go

@@ -35,6 +35,7 @@ import (
 	"go.opentelemetry.io/otel"
 	"go.opentelemetry.io/otel/attribute"
 	"go.opentelemetry.io/otel/trace"
+	"golang.org/x/exp/slices"
 
 	"github.com/prometheus/prometheus/model/histogram"
 	"github.com/prometheus/prometheus/model/labels"
@@ -824,6 +825,20 @@ func (ng *Engine) getTimeRangesForSelector(s *parser.EvalStmt, n *parser.VectorS
 	return start, end
 }
 
+func (ng *Engine) getLastSubqueryInterval(path []parser.Node) time.Duration {
+	var interval time.Duration
+	for _, node := range path {
+		switch n := node.(type) {
+		case *parser.SubqueryExpr:
+			interval = n.Step
+			if n.Step == 0 {
+				interval = time.Duration(ng.noStepSubqueryIntervalFn(durationMilliseconds(n.Range))) * time.Millisecond
+			}
+		}
+	}
+	return interval
+}
+
 func (ng *Engine) populateSeries(querier storage.Querier, s *parser.EvalStmt) {
 	// Whenever a MatrixSelector is evaluated, evalRange is set to the corresponding range.
 	// The evaluation of the VectorSelector inside then evaluates the given range and unsets
@@ -834,10 +849,14 @@ func (ng *Engine) populateSeries(querier storage.Querier, s *parser.EvalStmt) {
 		switch n := node.(type) {
 		case *parser.VectorSelector:
 			start, end := ng.getTimeRangesForSelector(s, n, path, evalRange)
+			interval := ng.getLastSubqueryInterval(path)
+			if interval == 0 {
+				interval = s.Interval
+			}
 			hints := &storage.SelectHints{
 				Start: start,
 				End:   end,
-				Step:  durationMilliseconds(s.Interval),
+				Step:  durationMilliseconds(interval),
 				Range: durationMilliseconds(evalRange),
 				Func:  extractFuncFromPath(path),
 			}
@@ -1246,7 +1265,7 @@ func (ev *evaluator) eval(expr parser.Expr) (parser.Value, storage.Warnings) {
 	case *parser.AggregateExpr:
 		// Grouping labels must be sorted (expected both by generateGroupingKey() and aggregation()).
 		sortedGrouping := e.Grouping
-		sort.Strings(sortedGrouping)
+		slices.Sort(sortedGrouping)
 
 		// Prepare a function to initialise series helpers with the grouping key.
 		buf := make([]byte, 0, 1024)
@@ -2103,13 +2122,13 @@ func (ev *evaluator) VectorBinop(op parser.ItemType, lhs, rhs Vector, matching *
 
 func signatureFunc(on bool, b []byte, names ...string) func(labels.Labels) string {
 	if on {
-		sort.Strings(names)
+		slices.Sort(names)
 		return func(lset labels.Labels) string {
 			return string(lset.BytesWithLabels(b, names...))
 		}
 	}
 	names = append([]string{labels.MetricName}, names...)
-	sort.Strings(names)
+	slices.Sort(names)
 	return func(lset labels.Labels) string {
 		return string(lset.BytesWithoutLabels(b, names...))
 	}
@@ -2160,7 +2179,7 @@ func resultMetric(lhs, rhs labels.Labels, op parser.ItemType, matching *parser.V
 		}
 	}
 
-	ret := enh.lb.Labels()
+	ret := enh.lb.Labels(nil)
 	enh.resultMetric[str] = ret
 	return ret
 }
@@ -2200,7 +2219,7 @@ func (ev *evaluator) VectorscalarBinop(op parser.ItemType, lhs Vector, rhs Scala
 }
 
 func dropMetricName(l labels.Labels) labels.Labels {
-	return labels.NewBuilder(l).Del(labels.MetricName).Labels()
+	return labels.NewBuilder(l).Del(labels.MetricName).Labels(nil)
 }
 
 // scalarBinop evaluates a binary operation between two Scalars.
@@ -2322,7 +2341,7 @@ func (ev *evaluator) aggregation(op parser.ItemType, grouping []string, without
 			// operator is less frequently used than other aggregations, we're fine having to
 			// re-compute the grouping key on each step for this case.
 			grouping = append(grouping, valueLabel)
-			sort.Strings(grouping)
+			slices.Sort(grouping)
 			recomputeGroupingKey = true
 		}
 	}
@@ -2335,7 +2354,7 @@ func (ev *evaluator) aggregation(op parser.ItemType, grouping []string, without
 		if op == parser.COUNT_VALUES {
 			lb.Reset(metric)
 			lb.Set(valueLabel, strconv.FormatFloat(s.V, 'f', -1, 64))
-			metric = lb.Labels()
+			metric = lb.Labels(nil)
 
 			// We've changed the metric so we have to recompute the grouping key.
 			recomputeGroupingKey = true
@@ -2359,7 +2378,7 @@ func (ev *evaluator) aggregation(op parser.ItemType, grouping []string, without
 			} else {
 				lb.Keep(grouping...)
 			}
-			m := lb.Labels()
+			m := lb.Labels(nil)
 			newAgg := &groupedAggregation{
 				labels:     m,
 				value:      s.V,

promql/engine_test.go

@@ -333,56 +333,56 @@ func TestSelectHintsSetCorrectly(t *testing.T) {
 		}, {
 			query: "foo[2m:1s]", start: 300000,
 			expected: []*storage.SelectHints{
-				{Start: 175000, End: 300000},
+				{Start: 175000, End: 300000, Step: 1000},
 			},
 		}, {
 			query: "count_over_time(foo[2m:1s])", start: 300000,
 			expected: []*storage.SelectHints{
-				{Start: 175000, End: 300000, Func: "count_over_time"},
+				{Start: 175000, End: 300000, Func: "count_over_time", Step: 1000},
 			},
 		}, {
 			query: "count_over_time(foo[2m:1s] @ 300)", start: 200000,
 			expected: []*storage.SelectHints{
-				{Start: 175000, End: 300000, Func: "count_over_time"},
+				{Start: 175000, End: 300000, Func: "count_over_time", Step: 1000},
 			},
 		}, {
 			query: "count_over_time(foo[2m:1s] @ 200)", start: 200000,
 			expected: []*storage.SelectHints{
-				{Start: 75000, End: 200000, Func: "count_over_time"},
+				{Start: 75000, End: 200000, Func: "count_over_time", Step: 1000},
 			},
 		}, {
 			query: "count_over_time(foo[2m:1s] @ 100)", start: 200000,
 			expected: []*storage.SelectHints{
-				{Start: -25000, End: 100000, Func: "count_over_time"},
+				{Start: -25000, End: 100000, Func: "count_over_time", Step: 1000},
 			},
 		}, {
 			query: "count_over_time(foo[2m:1s] offset 10s)", start: 300000,
 			expected: []*storage.SelectHints{
-				{Start: 165000, End: 290000, Func: "count_over_time"},
+				{Start: 165000, End: 290000, Func: "count_over_time", Step: 1000},
 			},
 		}, {
 			query: "count_over_time((foo offset 10s)[2m:1s] offset 10s)", start: 300000,
 			expected: []*storage.SelectHints{
-				{Start: 155000, End: 280000, Func: "count_over_time"},
+				{Start: 155000, End: 280000, Func: "count_over_time", Step: 1000},
 			},
 		}, {
 			// When the @ is on the vector selector, the enclosing subquery parameters
 			// don't affect the hint ranges.
 			query: "count_over_time((foo @ 200 offset 10s)[2m:1s] offset 10s)", start: 300000,
 			expected: []*storage.SelectHints{
-				{Start: 185000, End: 190000, Func: "count_over_time"},
+				{Start: 185000, End: 190000, Func: "count_over_time", Step: 1000},
 			},
 		}, {
 			// When the @ is on the vector selector, the enclosing subquery parameters
 			// don't affect the hint ranges.
 			query: "count_over_time((foo @ 200 offset 10s)[2m:1s] @ 100 offset 10s)", start: 300000,
 			expected: []*storage.SelectHints{
-				{Start: 185000, End: 190000, Func: "count_over_time"},
+				{Start: 185000, End: 190000, Func: "count_over_time", Step: 1000},
 			},
 		}, {
 			query: "count_over_time((foo offset 10s)[2m:1s] @ 100 offset 10s)", start: 300000,
 			expected: []*storage.SelectHints{
-				{Start: -45000, End: 80000, Func: "count_over_time"},
+				{Start: -45000, End: 80000, Func: "count_over_time", Step: 1000},
 			},
 		}, {
 			query: "foo", start: 10000, end: 20000,
@@ -501,13 +501,13 @@ func TestSelectHintsSetCorrectly(t *testing.T) {
 		}, {
 			query: "(max by (dim1) (foo))[5s:1s]", start: 10000,
 			expected: []*storage.SelectHints{
-				{Start: 0, End: 10000, Func: "max", By: true, Grouping: []string{"dim1"}},
+				{Start: 0, End: 10000, Func: "max", By: true, Grouping: []string{"dim1"}, Step: 1000},
 			},
 		}, {
 			query: "(sum(http_requests{group=~\"p.*\"})+max(http_requests{group=~\"c.*\"}))[20s:5s]", start: 120000,
 			expected: []*storage.SelectHints{
-				{Start: 95000, End: 120000, Func: "sum", By: true},
-				{Start: 95000, End: 120000, Func: "max", By: true},
+				{Start: 95000, End: 120000, Func: "sum", By: true, Step: 5000},
+				{Start: 95000, End: 120000, Func: "max", By: true, Step: 5000},
 			},
 		}, {
 			query: "foo @ 50 + bar @ 250 + baz @ 900", start: 100000, end: 500000,
@@ -547,12 +547,12 @@ func TestSelectHintsSetCorrectly(t *testing.T) {
 		}, { // Hints are based on the inner most subquery timestamp.
 			query: `sum_over_time(sum_over_time(metric{job="1"}[100s])[100s:25s] @ 50)[3s:1s] @ 3000`, start: 100000,
 			expected: []*storage.SelectHints{
-				{Start: -150000, End: 50000, Range: 100000, Func: "sum_over_time"},
+				{Start: -150000, End: 50000, Range: 100000, Func: "sum_over_time", Step: 25000},
 			},
 		}, { // Hints are based on the inner most subquery timestamp.
 			query: `sum_over_time(sum_over_time(metric{job="1"}[100s])[100s:25s] @ 3000)[3s:1s] @ 50`,
 			expected: []*storage.SelectHints{
-				{Start: 2800000, End: 3000000, Range: 100000, Func: "sum_over_time"},
+				{Start: 2800000, End: 3000000, Range: 100000, Func: "sum_over_time", Step: 25000},
 			},
 		},
 	} {
@@ -1442,7 +1442,7 @@ load 1ms
 	ref, err := app.Append(0, lblsneg, -1000000, 1000)
 	require.NoError(t, err)
 	for ts := int64(-1000000 + 1000); ts <= 0; ts += 1000 {
-		_, err := app.Append(ref, nil, ts, -float64(ts/1000)+1)
+		_, err := app.Append(ref, labels.EmptyLabels(), ts, -float64(ts/1000)+1)
 		require.NoError(t, err)
 	}
 
@@ -1611,7 +1611,7 @@ load 1ms
 						{V: 3600, T: 6 * 60 * 1000},
 						{V: 3600, T: 7 * 60 * 1000},
 					},
-					Metric: labels.Labels{},
+					Metric: labels.EmptyLabels(),
 				},
 			},
 		},
@@ -1912,7 +1912,7 @@ func TestSubquerySelector(t *testing.T) {
 						Matrix{
 							Series{
 								Points: []Point{{V: 270, T: 90000}, {V: 300, T: 100000}, {V: 330, T: 110000}, {V: 360, T: 120000}},
-								Metric: labels.Labels{},
+								Metric: labels.EmptyLabels(),
 							},
 						},
 						nil,
@@ -1926,7 +1926,7 @@ func TestSubquerySelector(t *testing.T) {
 						Matrix{
 							Series{
 								Points: []Point{{V: 800, T: 80000}, {V: 900, T: 90000}, {V: 1000, T: 100000}, {V: 1100, T: 110000}, {V: 1200, T: 120000}},
-								Metric: labels.Labels{},
+								Metric: labels.EmptyLabels(),
 							},
 						},
 						nil,
@@ -1940,7 +1940,7 @@ func TestSubquerySelector(t *testing.T) {
 						Matrix{
 							Series{
 								Points: []Point{{V: 1000, T: 100000}, {V: 1000, T: 105000}, {V: 1100, T: 110000}, {V: 1100, T: 115000}, {V: 1200, T: 120000}},
-								Metric: labels.Labels{},
+								Metric: labels.EmptyLabels(),
 							},
 						},
 						nil,
@@ -2996,7 +2996,7 @@ func TestRangeQuery(t *testing.T) {
 			Result: Matrix{
 				Series{
 					Points: []Point{{V: 0, T: 0}, {V: 11, T: 60000}, {V: 1100, T: 120000}},
-					Metric: labels.Labels{},
+					Metric: labels.EmptyLabels(),
 				},
 			},
 			Start:    time.Unix(0, 0),
@@ -3011,7 +3011,7 @@ func TestRangeQuery(t *testing.T) {
 			Result: Matrix{
 				Series{
 					Points: []Point{{V: 0, T: 0}, {V: 11, T: 60000}, {V: 1100, T: 120000}},
-					Metric: labels.Labels{},
+					Metric: labels.EmptyLabels(),
 				},
 			},
 			Start:    time.Unix(0, 0),
@@ -3026,7 +3026,7 @@ func TestRangeQuery(t *testing.T) {
 			Result: Matrix{
 				Series{
 					Points: []Point{{V: 0, T: 0}, {V: 11, T: 60000}, {V: 1100, T: 120000}, {V: 110000, T: 180000}, {V: 11000000, T: 240000}},
-					Metric: labels.Labels{},
+					Metric: labels.EmptyLabels(),
 				},
 			},
 			Start:    time.Unix(0, 0),
@@ -3041,7 +3041,7 @@ func TestRangeQuery(t *testing.T) {
 			Result: Matrix{
 				Series{
 					Points: []Point{{V: 5, T: 0}, {V: 59, T: 60000}, {V: 9, T: 120000}, {V: 956, T: 180000}},
-					Metric: labels.Labels{},
+					Metric: labels.EmptyLabels(),
 				},
 			},
 			Start:    time.Unix(0, 0),
@@ -3056,7 +3056,7 @@ func TestRangeQuery(t *testing.T) {
 			Result: Matrix{
 				Series{
 					Points: []Point{{V: 1, T: 0}, {V: 3, T: 60000}, {V: 5, T: 120000}},
-					Metric: labels.Labels{labels.Label{Name: "__name__", Value: "metric"}},
+					Metric: labels.FromStrings("__name__", "metric"),
 				},
 			},
 			Start:    time.Unix(0, 0),
@@ -3071,7 +3071,7 @@ func TestRangeQuery(t *testing.T) {
 			Result: Matrix{
 				Series{
 					Points: []Point{{V: 1, T: 0}, {V: 3, T: 60000}, {V: 5, T: 120000}},
-					Metric: labels.Labels{labels.Label{Name: "__name__", Value: "metric"}},
+					Metric: labels.FromStrings("__name__", "metric"),
 				},
 			},
 			Start:    time.Unix(0, 0),
@@ -3087,17 +3087,17 @@ func TestRangeQuery(t *testing.T) {
 			Result: Matrix{
 				Series{
 					Points: []Point{{V: 1, T: 0}, {V: 3, T: 60000}, {V: 5, T: 120000}},
-					Metric: labels.Labels{
-						labels.Label{Name: "__name__", Value: "bar"},
-						labels.Label{Name: "job", Value: "2"},
-					},
+					Metric: labels.FromStrings(
+						"__name__", "bar",
+						"job", "2",
+					),
 				},
 				Series{
 					Points: []Point{{V: 3, T: 60000}, {V: 5, T: 120000}},
-					Metric: labels.Labels{
-						labels.Label{Name: "__name__", Value: "foo"},
-						labels.Label{Name: "job", Value: "1"},
-					},
+					Metric: labels.FromStrings(
+						"__name__", "foo",
+						"job", "1",
+					),
 				},
 			},
 			Start:    time.Unix(0, 0),

promql/functions.go

@@ -31,19 +31,20 @@ import (
 
 // FunctionCall is the type of a PromQL function implementation
 //
-// vals is a list of the evaluated arguments for the function call. For range
-// vectors it will be a Matrix with one series, instant vectors a Vector,
-// scalars a Vector with one series whose value is the scalar value,and nil for
-// strings.
+// vals is a list of the evaluated arguments for the function call.
+//
+// For range vectors it will be a Matrix with one series, instant vectors a
+// Vector, scalars a Vector with one series whose value is the scalar
+// value,and nil for strings.
 //
 // args are the original arguments to the function, where you can access
 // matrixSelectors, vectorSelectors, and StringLiterals.
 //
-// enh.Out is a pre-allocated empty vector that you may use to accumulate output
-// before returning it. The vectors in vals should not be returned.
+// enh.Out is a pre-allocated empty vector that you may use to accumulate
+// output before returning it. The vectors in vals should not be returned.a
 //
-// Range vector functions need only return a vector with the right value, the
-// metric and timestamp are not needed.
+// Range vector functions need only return a vector with the right value,
+// the metric and timestamp are not needed.
 //
 // Instant vector functions need only return a vector with the right values and
 // metrics, the timestamp are not needed.
@@ -956,7 +957,7 @@ func funcHistogramQuantile(vals []parser.Value, args parser.Expressions, enh *Ev
 		if !ok {
 			sample.Metric = labels.NewBuilder(sample.Metric).
 				Del(excludedLabels...).
-				Labels()
+				Labels(nil)
 
 			mb = &metricWithBuckets{sample.Metric, nil}
 			enh.signatureToMetricWithBuckets[string(enh.lblBuf)] = mb
@@ -1076,7 +1077,7 @@ func funcLabelReplace(vals []parser.Value, args parser.Expressions, enh *EvalNod
 				if len(res) > 0 {
 					lb.Set(dst, string(res))
 				}
-				outMetric = lb.Labels()
+				outMetric = lb.Labels(nil)
 				enh.Dmn[h] = outMetric
 			}
 		}
@@ -1144,7 +1145,7 @@ func funcLabelJoin(vals []parser.Value, args parser.Expressions, enh *EvalNodeHe
 				lb.Set(dst, strval)
 			}
 
-			outMetric = lb.Labels()
+			outMetric = lb.Labels(nil)
 			enh.Dmn[h] = outMetric
 		}
 
@@ -1400,14 +1401,14 @@ func createLabelsForAbsentFunction(expr parser.Expr) labels.Labels {
 			continue
 		}
 		if ma.Type == labels.MatchEqual && !m.Has(ma.Name) {
-			m = labels.NewBuilder(m).Set(ma.Name, ma.Value).Labels()
+			m = labels.NewBuilder(m).Set(ma.Name, ma.Value).Labels(nil)
 		} else {
 			empty = append(empty, ma.Name)
 		}
 	}
 
 	for _, v := range empty {
-		m = labels.NewBuilder(m).Del(v).Labels()
+		m = labels.NewBuilder(m).Del(v).Labels(nil)
 	}
 	return m
 }

promql/parser/ast.go

@@ -28,13 +28,12 @@ import (
 // or a chain of function definitions (e.g. String(), PromQLExpr(), etc.) convention is
 // to list them as follows:
 //
-// 	- Statements
-// 	- statement types (alphabetical)
-// 	- ...
-// 	- Expressions
-// 	- expression types (alphabetical)
-// 	- ...
-//
+//   - Statements
+//   - statement types (alphabetical)
+//   - ...
+//   - Expressions
+//   - expression types (alphabetical)
+//   - ...
 type Node interface {
 	// String representation of the node that returns the given node when parsed
 	// as part of a valid query.

promql/parser/parse_test.go

@@ -3603,7 +3603,7 @@ var testSeries = []struct {
 }{
 	{
 		input:          `{} 1 2 3`,
-		expectedMetric: labels.Labels{},
+		expectedMetric: labels.EmptyLabels(),
 		expectedValues: newSeq(1, 2, 3),
 	}, {
 		input:          `{a="b"} -1 2 3`,

promql/query_logger.go

@@ -64,6 +64,7 @@ func logUnfinishedQueries(filename string, filesize int, logger log.Logger) {
 			level.Error(logger).Log("msg", "Failed to open query log file", "err", err)
 			return
 		}
+		defer fd.Close()
 
 		brokenJSON := make([]byte, filesize)
 		_, err = fd.Read(brokenJSON)

promql/test.go

@@ -785,7 +785,7 @@ func (ll *LazyLoader) QueryEngine() *Engine {
 
 // Queryable allows querying the LazyLoader's data.
 // Note: only the samples till the max timestamp used
-//       in `WithSamplesTill` can be queried.
+// in `WithSamplesTill` can be queried.
 func (ll *LazyLoader) Queryable() storage.Queryable {
 	return ll.storage
 }

rules/alerting.go

@@ -25,7 +25,7 @@ import (
 	"github.com/go-kit/log/level"
 	"github.com/prometheus/common/model"
 	"go.uber.org/atomic"
-	yaml "gopkg.in/yaml.v2"
+	"gopkg.in/yaml.v2"
 
 	"github.com/prometheus/prometheus/model/labels"
 	"github.com/prometheus/prometheus/model/rulefmt"
@@ -226,7 +226,7 @@ func (r *AlertingRule) sample(alert *Alert, ts time.Time) promql.Sample {
 	lb.Set(alertStateLabel, alert.State.String())
 
 	s := promql.Sample{
-		Metric: lb.Labels(),
+		Metric: lb.Labels(nil),
 		Point:  promql.Point{T: timestamp.FromTime(ts), V: 1},
 	}
 	return s
@@ -244,7 +244,7 @@ func (r *AlertingRule) forStateSample(alert *Alert, ts time.Time, v float64) pro
 	lb.Set(labels.AlertName, r.name)
 
 	s := promql.Sample{
-		Metric: lb.Labels(),
+		Metric: lb.Labels(nil),
 		Point:  promql.Point{T: timestamp.FromTime(ts), V: v},
 	}
 	return s
@@ -373,7 +373,7 @@ func (r *AlertingRule) Eval(ctx context.Context, ts time.Time, query QueryFunc,
 			annotations = append(annotations, labels.Label{Name: a.Name, Value: expand(a.Value)})
 		}
 
-		lbs := lb.Labels()
+		lbs := lb.Labels(nil)
 		h := lbs.Hash()
 		resultFPs[h] = struct{}{}
 

rules/alerting_test.go

@@ -63,7 +63,7 @@ func TestAlertingRuleState(t *testing.T) {
 	}
 
 	for i, test := range tests {
-		rule := NewAlertingRule(test.name, nil, 0, nil, nil, nil, "", true, nil)
+		rule := NewAlertingRule(test.name, nil, 0, labels.EmptyLabels(), labels.EmptyLabels(), labels.EmptyLabels(), "", true, nil)
 		rule.active = test.active
 		got := rule.State()
 		require.Equal(t, test.want, got, "test case %d unexpected AlertState, want:%d got:%d", i, test.want, got)
@@ -91,7 +91,7 @@ func TestAlertingRuleLabelsUpdate(t *testing.T) {
 		// If an alert is going back and forth between two label values it will never fire.
 		// Instead, you should write two alerts with constant labels.
 		labels.FromStrings("severity", "{{ if lt $value 80.0 }}critical{{ else }}warning{{ end }}"),
-		nil, nil, "", true, nil,
+		labels.EmptyLabels(), labels.EmptyLabels(), "", true, nil,
 	)
 
 	results := []promql.Vector{
@@ -190,8 +190,8 @@ func TestAlertingRuleExternalLabelsInTemplate(t *testing.T) {
 		expr,
 		time.Minute,
 		labels.FromStrings("templated_label", "There are {{ len $externalLabels }} external Labels, of which foo is {{ $externalLabels.foo }}."),
-		nil,
-		nil,
+		labels.EmptyLabels(),
+		labels.EmptyLabels(),
 		"",
 		true, log.NewNopLogger(),
 	)
@@ -200,7 +200,7 @@ func TestAlertingRuleExternalLabelsInTemplate(t *testing.T) {
 		expr,
 		time.Minute,
 		labels.FromStrings("templated_label", "There are {{ len $externalLabels }} external Labels, of which foo is {{ $externalLabels.foo }}."),
-		nil,
+		labels.EmptyLabels(),
 		labels.FromStrings("foo", "bar", "dings", "bums"),
 		"",
 		true, log.NewNopLogger(),
@@ -284,8 +284,8 @@ func TestAlertingRuleExternalURLInTemplate(t *testing.T) {
 		expr,
 		time.Minute,
 		labels.FromStrings("templated_label", "The external URL is {{ $externalURL }}."),
-		nil,
-		nil,
+		labels.EmptyLabels(),
+		labels.EmptyLabels(),
 		"",
 		true, log.NewNopLogger(),
 	)
@@ -294,8 +294,8 @@ func TestAlertingRuleExternalURLInTemplate(t *testing.T) {
 		expr,
 		time.Minute,
 		labels.FromStrings("templated_label", "The external URL is {{ $externalURL }}."),
-		nil,
-		nil,
+		labels.EmptyLabels(),
+		labels.EmptyLabels(),
 		"http://localhost:1234",
 		true, log.NewNopLogger(),
 	)
@@ -378,8 +378,8 @@ func TestAlertingRuleEmptyLabelFromTemplate(t *testing.T) {
 		expr,
 		time.Minute,
 		labels.FromStrings("empty_label", ""),
-		nil,
-		nil,
+		labels.EmptyLabels(),
+		labels.EmptyLabels(),
 		"",
 		true, log.NewNopLogger(),
 	)
@@ -440,7 +440,7 @@ instance: {{ $v.Labels.instance }}, value: {{ printf "%.0f" $v.Value }};
 {{- end -}}
 {{- end -}}
 `),
-		nil,
+		labels.EmptyLabels(),
 		"",
 		true, log.NewNopLogger(),
 	)
@@ -477,7 +477,7 @@ instance: {{ $v.Labels.instance }}, value: {{ printf "%.0f" $v.Value }};
 
 func BenchmarkAlertingRuleAtomicField(b *testing.B) {
 	b.ReportAllocs()
-	rule := NewAlertingRule("bench", nil, 0, nil, nil, nil, "", true, nil)
+	rule := NewAlertingRule("bench", nil, 0, labels.EmptyLabels(), labels.EmptyLabels(), labels.EmptyLabels(), "", true, nil)
 	done := make(chan struct{})
 	go func() {
 		for i := 0; i < b.N; i++ {
@@ -516,8 +516,8 @@ func TestAlertingRuleDuplicate(t *testing.T) {
 		expr,
 		time.Minute,
 		labels.FromStrings("test", "test"),
-		nil,
-		nil,
+		labels.EmptyLabels(),
+		labels.EmptyLabels(),
 		"",
 		true, log.NewNopLogger(),
 	)
@@ -562,8 +562,8 @@ func TestAlertingRuleLimit(t *testing.T) {
 		expr,
 		time.Minute,
 		labels.FromStrings("test", "test"),
-		nil,
-		nil,
+		labels.EmptyLabels(),
+		labels.EmptyLabels(),
 		"",
 		true, log.NewNopLogger(),
 	)
@@ -634,13 +634,13 @@ func TestQueryForStateSeries(t *testing.T) {
 			nil,
 			time.Minute,
 			labels.FromStrings("severity", "critical"),
-			nil, nil, "", true, nil,
+			labels.EmptyLabels(), labels.EmptyLabels(), "", true, nil,
 		)
 
 		alert := &Alert{
 			State:       0,
-			Labels:      nil,
-			Annotations: nil,
+			Labels:      labels.EmptyLabels(),
+			Annotations: labels.EmptyLabels(),
 			Value:       0,
 			ActiveAt:    time.Time{},
 			FiredAt:     time.Time{},

rules/manager_test.go

@@ -28,7 +28,7 @@ import (
 	"github.com/stretchr/testify/require"
 	"go.uber.org/atomic"
 	"go.uber.org/goleak"
-	yaml "gopkg.in/yaml.v2"
+	"gopkg.in/yaml.v2"
 
 	"github.com/prometheus/prometheus/model/labels"
 	"github.com/prometheus/prometheus/model/rulefmt"
@@ -65,7 +65,7 @@ func TestAlertingRule(t *testing.T) {
 		expr,
 		time.Minute,
 		labels.FromStrings("severity", "{{\"c\"}}ritical"),
-		nil, nil, "", true, nil,
+		labels.EmptyLabels(), labels.EmptyLabels(), "", true, nil,
 	)
 	result := promql.Vector{
 		promql.Sample{
@@ -208,7 +208,7 @@ func TestForStateAddSamples(t *testing.T) {
 		expr,
 		time.Minute,
 		labels.FromStrings("severity", "{{\"c\"}}ritical"),
-		nil, nil, "", true, nil,
+		labels.EmptyLabels(), labels.EmptyLabels(), "", true, nil,
 	)
 	result := promql.Vector{
 		promql.Sample{
@@ -382,7 +382,7 @@ func TestForStateRestore(t *testing.T) {
 		expr,
 		alertForDuration,
 		labels.FromStrings("severity", "critical"),
-		nil, nil, "", true, nil,
+		labels.EmptyLabels(), labels.EmptyLabels(), "", true, nil,
 	)
 
 	group := NewGroup(GroupOptions{
@@ -448,7 +448,7 @@ func TestForStateRestore(t *testing.T) {
 			expr,
 			alertForDuration,
 			labels.FromStrings("severity", "critical"),
-			nil, nil, "", false, nil,
+			labels.EmptyLabels(), labels.EmptyLabels(), "", false, nil,
 		)
 		newGroup := NewGroup(GroupOptions{
 			Name:          "default",
@@ -612,36 +612,36 @@ func readSeriesSet(ss storage.SeriesSet) (map[string][]promql.Point, error) {
 func TestCopyState(t *testing.T) {
 	oldGroup := &Group{
 		rules: []Rule{
-			NewAlertingRule("alert", nil, 0, nil, nil, nil, "", true, nil),
-			NewRecordingRule("rule1", nil, nil),
-			NewRecordingRule("rule2", nil, nil),
-			NewRecordingRule("rule3", nil, labels.Labels{{Name: "l1", Value: "v1"}}),
-			NewRecordingRule("rule3", nil, labels.Labels{{Name: "l1", Value: "v2"}}),
-			NewRecordingRule("rule3", nil, labels.Labels{{Name: "l1", Value: "v3"}}),
-			NewAlertingRule("alert2", nil, 0, labels.Labels{{Name: "l2", Value: "v1"}}, nil, nil, "", true, nil),
+			NewAlertingRule("alert", nil, 0, labels.EmptyLabels(), labels.EmptyLabels(), labels.EmptyLabels(), "", true, nil),
+			NewRecordingRule("rule1", nil, labels.EmptyLabels()),
+			NewRecordingRule("rule2", nil, labels.EmptyLabels()),
+			NewRecordingRule("rule3", nil, labels.FromStrings("l1", "v1")),
+			NewRecordingRule("rule3", nil, labels.FromStrings("l1", "v2")),
+			NewRecordingRule("rule3", nil, labels.FromStrings("l1", "v3")),
+			NewAlertingRule("alert2", nil, 0, labels.FromStrings("l2", "v1"), labels.EmptyLabels(), labels.EmptyLabels(), "", true, nil),
 		},
 		seriesInPreviousEval: []map[string]labels.Labels{
 			{},
 			{},
 			{},
-			{"r3a": labels.Labels{{Name: "l1", Value: "v1"}}},
-			{"r3b": labels.Labels{{Name: "l1", Value: "v2"}}},
-			{"r3c": labels.Labels{{Name: "l1", Value: "v3"}}},
-			{"a2": labels.Labels{{Name: "l2", Value: "v1"}}},
+			{"r3a": labels.FromStrings("l1", "v1")},
+			{"r3b": labels.FromStrings("l1", "v2")},
+			{"r3c": labels.FromStrings("l1", "v3")},
+			{"a2": labels.FromStrings("l2", "v1")},
 		},
 		evaluationTime: time.Second,
 	}
 	oldGroup.rules[0].(*AlertingRule).active[42] = nil
 	newGroup := &Group{
 		rules: []Rule{
-			NewRecordingRule("rule3", nil, labels.Labels{{Name: "l1", Value: "v0"}}),
-			NewRecordingRule("rule3", nil, labels.Labels{{Name: "l1", Value: "v1"}}),
-			NewRecordingRule("rule3", nil, labels.Labels{{Name: "l1", Value: "v2"}}),
-			NewAlertingRule("alert", nil, 0, nil, nil, nil, "", true, nil),
-			NewRecordingRule("rule1", nil, nil),
-			NewAlertingRule("alert2", nil, 0, labels.Labels{{Name: "l2", Value: "v0"}}, nil, nil, "", true, nil),
-			NewAlertingRule("alert2", nil, 0, labels.Labels{{Name: "l2", Value: "v1"}}, nil, nil, "", true, nil),
-			NewRecordingRule("rule4", nil, nil),
+			NewRecordingRule("rule3", nil, labels.FromStrings("l1", "v0")),
+			NewRecordingRule("rule3", nil, labels.FromStrings("l1", "v1")),
+			NewRecordingRule("rule3", nil, labels.FromStrings("l1", "v2")),
+			NewAlertingRule("alert", nil, 0, labels.EmptyLabels(), labels.EmptyLabels(), labels.EmptyLabels(), "", true, nil),
+			NewRecordingRule("rule1", nil, labels.EmptyLabels()),
+			NewAlertingRule("alert2", nil, 0, labels.FromStrings("l2", "v0"), labels.EmptyLabels(), labels.EmptyLabels(), "", true, nil),
+			NewAlertingRule("alert2", nil, 0, labels.FromStrings("l2", "v1"), labels.EmptyLabels(), labels.EmptyLabels(), "", true, nil),
+			NewRecordingRule("rule4", nil, labels.EmptyLabels()),
 		},
 		seriesInPreviousEval: make([]map[string]labels.Labels, 8),
 	}
@@ -649,19 +649,19 @@ func TestCopyState(t *testing.T) {
 
 	want := []map[string]labels.Labels{
 		nil,
-		{"r3a": labels.Labels{{Name: "l1", Value: "v1"}}},
-		{"r3b": labels.Labels{{Name: "l1", Value: "v2"}}},
+		{"r3a": labels.FromStrings("l1", "v1")},
+		{"r3b": labels.FromStrings("l1", "v2")},
 		{},
 		{},
 		nil,
-		{"a2": labels.Labels{{Name: "l2", Value: "v1"}}},
+		{"a2": labels.FromStrings("l2", "v1")},
 		nil,
 	}
 	require.Equal(t, want, newGroup.seriesInPreviousEval)
 	require.Equal(t, oldGroup.rules[0], newGroup.rules[3])
 	require.Equal(t, oldGroup.evaluationTime, newGroup.evaluationTime)
 	require.Equal(t, oldGroup.lastEvaluation, newGroup.lastEvaluation)
-	require.Equal(t, []labels.Labels{{{Name: "l1", Value: "v3"}}}, newGroup.staleSeries)
+	require.Equal(t, []labels.Labels{labels.FromStrings("l1", "v3")}, newGroup.staleSeries)
 }
 
 func TestDeletedRuleMarkedStale(t *testing.T) {
@@ -669,10 +669,10 @@ func TestDeletedRuleMarkedStale(t *testing.T) {
 	defer st.Close()
 	oldGroup := &Group{
 		rules: []Rule{
-			NewRecordingRule("rule1", nil, labels.Labels{{Name: "l1", Value: "v1"}}),
+			NewRecordingRule("rule1", nil, labels.FromStrings("l1", "v1")),
 		},
 		seriesInPreviousEval: []map[string]labels.Labels{
-			{"r1": labels.Labels{{Name: "l1", Value: "v1"}}},
+			{"r1": labels.FromStrings("l1", "v1")},
 		},
 	}
 	newGroup := &Group{
@@ -728,7 +728,7 @@ func TestUpdate(t *testing.T) {
 	ruleManager.start()
 	defer ruleManager.Stop()
 
-	err := ruleManager.Update(10*time.Second, files, nil, "", nil)
+	err := ruleManager.Update(10*time.Second, files, labels.EmptyLabels(), "", nil)
 	require.NoError(t, err)
 	require.Greater(t, len(ruleManager.groups), 0, "expected non-empty rule groups")
 	ogs := map[string]*Group{}
@@ -739,7 +739,7 @@ func TestUpdate(t *testing.T) {
 		ogs[h] = g
 	}
 
-	err = ruleManager.Update(10*time.Second, files, nil, "", nil)
+	err = ruleManager.Update(10*time.Second, files, labels.EmptyLabels(), "", nil)
 	require.NoError(t, err)
 	for h, g := range ruleManager.groups {
 		for _, actual := range g.seriesInPreviousEval {
@@ -758,7 +758,7 @@ func TestUpdate(t *testing.T) {
 	defer os.Remove(tmpFile.Name())
 	defer tmpFile.Close()
 
-	err = ruleManager.Update(10*time.Second, []string{tmpFile.Name()}, nil, "", nil)
+	err = ruleManager.Update(10*time.Second, []string{tmpFile.Name()}, labels.EmptyLabels(), "", nil)
 	require.NoError(t, err)
 
 	for h, g := range ruleManager.groups {
@@ -836,7 +836,7 @@ func reloadAndValidate(rgs *rulefmt.RuleGroups, t *testing.T, tmpFile *os.File,
 	tmpFile.Seek(0, 0)
 	_, err = tmpFile.Write(bs)
 	require.NoError(t, err)
-	err = ruleManager.Update(10*time.Second, []string{tmpFile.Name()}, nil, "", nil)
+	err = ruleManager.Update(10*time.Second, []string{tmpFile.Name()}, labels.EmptyLabels(), "", nil)
 	require.NoError(t, err)
 	for h, g := range ruleManager.groups {
 		if ogs[h] == g {
@@ -872,7 +872,7 @@ func TestNotify(t *testing.T) {
 
 	expr, err := parser.ParseExpr("a > 1")
 	require.NoError(t, err)
-	rule := NewAlertingRule("aTooHigh", expr, 0, labels.Labels{}, labels.Labels{}, nil, "", true, log.NewNopLogger())
+	rule := NewAlertingRule("aTooHigh", expr, 0, labels.Labels{}, labels.Labels{}, labels.EmptyLabels(), "", true, log.NewNopLogger())
 	group := NewGroup(GroupOptions{
 		Name:          "alert",
 		Interval:      time.Second,
@@ -981,7 +981,7 @@ func TestMetricsUpdate(t *testing.T) {
 	}
 
 	for i, c := range cases {
-		err := ruleManager.Update(time.Second, c.files, nil, "", nil)
+		err := ruleManager.Update(time.Second, c.files, labels.EmptyLabels(), "", nil)
 		require.NoError(t, err)
 		time.Sleep(2 * time.Second)
 		require.Equal(t, c.metrics, countMetrics(), "test %d: invalid count of metrics", i)
@@ -1055,7 +1055,7 @@ func TestGroupStalenessOnRemoval(t *testing.T) {
 
 	var totalStaleNaN int
 	for i, c := range cases {
-		err := ruleManager.Update(time.Second, c.files, nil, "", nil)
+		err := ruleManager.Update(time.Second, c.files, labels.EmptyLabels(), "", nil)
 		require.NoError(t, err)
 		time.Sleep(3 * time.Second)
 		totalStaleNaN += c.staleNaN
@@ -1097,11 +1097,11 @@ func TestMetricsStalenessOnManagerShutdown(t *testing.T) {
 		}
 	}()
 
-	err := ruleManager.Update(2*time.Second, files, nil, "", nil)
+	err := ruleManager.Update(2*time.Second, files, labels.EmptyLabels(), "", nil)
 	time.Sleep(4 * time.Second)
 	require.NoError(t, err)
 	start := time.Now()
-	err = ruleManager.Update(3*time.Second, files[:0], nil, "", nil)
+	err = ruleManager.Update(3*time.Second, files[:0], labels.EmptyLabels(), "", nil)
 	require.NoError(t, err)
 	ruleManager.Stop()
 	stopped = true
@@ -1144,8 +1144,8 @@ func TestGroupHasAlertingRules(t *testing.T) {
 			group: &Group{
 				name: "HasAlertingRule",
 				rules: []Rule{
-					NewAlertingRule("alert", nil, 0, nil, nil, nil, "", true, nil),
-					NewRecordingRule("record", nil, nil),
+					NewAlertingRule("alert", nil, 0, labels.EmptyLabels(), labels.EmptyLabels(), labels.EmptyLabels(), "", true, nil),
+					NewRecordingRule("record", nil, labels.EmptyLabels()),
 				},
 			},
 			want: true,
@@ -1161,7 +1161,7 @@ func TestGroupHasAlertingRules(t *testing.T) {
 			group: &Group{
 				name: "HasOnlyRecordingRule",
 				rules: []Rule{
-					NewRecordingRule("record", nil, nil),
+					NewRecordingRule("record", nil, labels.EmptyLabels()),
 				},
 			},
 			want: false,
@@ -1296,7 +1296,7 @@ func TestUpdateMissedEvalMetrics(t *testing.T) {
 			vector:              expr,
 			holdDuration:        5 * time.Minute,
 			labels:              labels.FromStrings("severity", "critical"),
-			annotations:         nil,
+			annotations:         labels.EmptyLabels(),
 			externalLabels:      nil,
 			externalURL:         "",
 			active:              m,

rules/recording.go

@@ -20,7 +20,7 @@ import (
 	"time"
 
 	"go.uber.org/atomic"
-	yaml "gopkg.in/yaml.v2"
+	"gopkg.in/yaml.v2"
 
 	"github.com/prometheus/prometheus/model/labels"
 	"github.com/prometheus/prometheus/model/rulefmt"
@@ -89,7 +89,7 @@ func (rule *RecordingRule) Eval(ctx context.Context, ts time.Time, query QueryFu
 			lb.Set(l.Name, l.Value)
 		}
 
-		sample.Metric = lb.Labels()
+		sample.Metric = lb.Labels(nil)
 	}
 
 	// Check that the rule does not produce identical metrics after applying

scrape/manager.go

@@ -129,6 +129,9 @@ type Options struct {
 	// Option used by downstream scraper users like OpenTelemetry Collector
 	// to help lookup metric metadata. Should be false for Prometheus.
 	PassMetadataInContext bool
+	// Option to enable the experimental in-memory metadata storage and append
+	// metadata to the WAL.
+	EnableMetadataStorage bool
 	// Option to increase the interval used by scrape manager to throttle target groups updates.
 	DiscoveryReloadInterval model.Duration
 

scrape/manager_test.go

@@ -21,7 +21,7 @@ import (
 
 	"github.com/prometheus/common/model"
 	"github.com/stretchr/testify/require"
-	yaml "gopkg.in/yaml.v2"
+	"gopkg.in/yaml.v2"
 
 	"github.com/prometheus/prometheus/config"
 	"github.com/prometheus/prometheus/discovery/targetgroup"

scrape/scrape.go

@@ -42,6 +42,7 @@ import (
 	"github.com/prometheus/prometheus/model/exemplar"
 	"github.com/prometheus/prometheus/model/histogram"
 	"github.com/prometheus/prometheus/model/labels"
+	"github.com/prometheus/prometheus/model/metadata"
 	"github.com/prometheus/prometheus/model/relabel"
 	"github.com/prometheus/prometheus/model/textparse"
 	"github.com/prometheus/prometheus/model/timestamp"
@@ -319,8 +320,8 @@ func newScrapePool(cfg *config.ScrapeConfig, app storage.Appendable, jitterSeed
 			opts.interval,
 			opts.timeout,
 			options.ExtraMetrics,
+			options.EnableMetadataStorage,
 			opts.target,
-			cache,
 			options.PassMetadataInContext,
 		)
 	}
@@ -677,7 +678,7 @@ func mutateSampleLabels(lset labels.Labels, target *Target, honor bool, rc []*re
 		}
 	}
 
-	res := lb.Labels()
+	res := lb.Labels(nil)
 
 	if len(rc) > 0 {
 		res = relabel.Process(res, rc...)
@@ -717,7 +718,7 @@ func mutateReportSampleLabels(lset labels.Labels, target *Target) labels.Labels
 		lb.Set(l.Name, l.Value)
 	}
 
-	return lb.Labels()
+	return lb.Labels(nil)
 }
 
 // appender returns an appender for ingested samples from the target.
@@ -874,7 +875,8 @@ type scrapeLoop struct {
 
 	disabledEndOfRunStalenessMarkers bool
 
-	reportExtraMetrics bool
+	reportExtraMetrics  bool
+	appendMetadataToWAL bool
 }
 
 // scrapeCache tracks mappings of exposed metric strings to label sets and
@@ -907,15 +909,15 @@ type scrapeCache struct {
 
 // metaEntry holds meta information about a metric.
 type metaEntry struct {
-	lastIter uint64 // Last scrape iteration the entry was observed at.
-	typ      textparse.MetricType
-	help     string
-	unit     string
+	metadata.Metadata
+
+	lastIter       uint64 // Last scrape iteration the entry was observed at.
+	lastIterChange uint64 // Last scrape iteration the entry was changed at.
 }
 
 func (m *metaEntry) size() int {
 	// The attribute lastIter although part of the struct it is not metadata.
-	return len(m.help) + len(m.unit) + len(m.typ)
+	return len(m.Help) + len(m.Unit) + len(m.Type)
 }
 
 func newScrapeCache() *scrapeCache {
@@ -1028,10 +1030,13 @@ func (c *scrapeCache) setType(metric []byte, t textparse.MetricType) {
 
 	e, ok := c.metadata[yoloString(metric)]
 	if !ok {
-		e = &metaEntry{typ: textparse.MetricTypeUnknown}
+		e = &metaEntry{Metadata: metadata.Metadata{Type: textparse.MetricTypeUnknown}}
 		c.metadata[string(metric)] = e
 	}
-	e.typ = t
+	if e.Type != t {
+		e.Type = t
+		e.lastIterChange = c.iter
+	}
 	e.lastIter = c.iter
 
 	c.metaMtx.Unlock()
@@ -1042,11 +1047,12 @@ func (c *scrapeCache) setHelp(metric, help []byte) {
 
 	e, ok := c.metadata[yoloString(metric)]
 	if !ok {
-		e = &metaEntry{typ: textparse.MetricTypeUnknown}
+		e = &metaEntry{Metadata: metadata.Metadata{Type: textparse.MetricTypeUnknown}}
 		c.metadata[string(metric)] = e
 	}
-	if e.help != yoloString(help) {
-		e.help = string(help)
+	if e.Help != yoloString(help) {
+		e.Help = string(help)
+		e.lastIterChange = c.iter
 	}
 	e.lastIter = c.iter
 
@@ -1058,11 +1064,12 @@ func (c *scrapeCache) setUnit(metric, unit []byte) {
 
 	e, ok := c.metadata[yoloString(metric)]
 	if !ok {
-		e = &metaEntry{typ: textparse.MetricTypeUnknown}
+		e = &metaEntry{Metadata: metadata.Metadata{Type: textparse.MetricTypeUnknown}}
 		c.metadata[string(metric)] = e
 	}
-	if e.unit != yoloString(unit) {
-		e.unit = string(unit)
+	if e.Unit != yoloString(unit) {
+		e.Unit = string(unit)
+		e.lastIterChange = c.iter
 	}
 	e.lastIter = c.iter
 
@@ -1079,9 +1086,9 @@ func (c *scrapeCache) GetMetadata(metric string) (MetricMetadata, bool) {
 	}
 	return MetricMetadata{
 		Metric: metric,
-		Type:   m.typ,
-		Help:   m.help,
-		Unit:   m.unit,
+		Type:   m.Type,
+		Help:   m.Help,
+		Unit:   m.Unit,
 	}, true
 }
 
@@ -1094,9 +1101,9 @@ func (c *scrapeCache) ListMetadata() []MetricMetadata {
 	for m, e := range c.metadata {
 		res = append(res, MetricMetadata{
 			Metric: m,
-			Type:   e.typ,
-			Help:   e.help,
-			Unit:   e.unit,
+			Type:   e.Type,
+			Help:   e.Help,
+			Unit:   e.Unit,
 		})
 	}
 	return res
@@ -1136,8 +1143,8 @@ func newScrapeLoop(ctx context.Context,
 	interval time.Duration,
 	timeout time.Duration,
 	reportExtraMetrics bool,
+	appendMetadataToWAL bool,
 	target *Target,
-	metricMetadataStore MetricMetadataStore,
 	passMetadataInContext bool,
 ) *scrapeLoop {
 	if l == nil {
@@ -1179,6 +1186,7 @@ func newScrapeLoop(ctx context.Context,
 		interval:            interval,
 		timeout:             timeout,
 		reportExtraMetrics:  reportExtraMetrics,
+		appendMetadataToWAL: appendMetadataToWAL,
 	}
 	sl.ctx, sl.cancel = context.WithCancel(ctx)
 
@@ -1458,12 +1466,36 @@ func (sl *scrapeLoop) append(app storage.Appender, b []byte, contentType string,
 	}
 
 	var (
-		defTime        = timestamp.FromTime(ts)
-		appErrs        = appendErrors{}
-		sampleLimitErr error
-		e              exemplar.Exemplar // escapes to heap so hoisted out of loop
+		defTime         = timestamp.FromTime(ts)
+		appErrs         = appendErrors{}
+		sampleLimitErr  error
+		e               exemplar.Exemplar // escapes to heap so hoisted out of loop
+		meta            metadata.Metadata
+		metadataChanged bool
 	)
 
+	// updateMetadata updates the current iteration's metadata object and the
+	// metadataChanged value if we have metadata in the scrape cache AND the
+	// labelset is for a new series or the metadata for this series has just
+	// changed. It returns a boolean based on whether the metadata was updated.
+	updateMetadata := func(lset labels.Labels, isNewSeries bool) bool {
+		if !sl.appendMetadataToWAL {
+			return false
+		}
+
+		sl.cache.metaMtx.Lock()
+		defer sl.cache.metaMtx.Unlock()
+		metaEntry, metaOk := sl.cache.metadata[yoloString([]byte(lset.Get(labels.MetricName)))]
+		if metaOk && (isNewSeries || metaEntry.lastIterChange == sl.cache.iter) {
+			metadataChanged = true
+			meta.Type = metaEntry.Type
+			meta.Unit = metaEntry.Unit
+			meta.Help = metaEntry.Help
+			return true
+		}
+		return false
+	}
+
 	// Take an appender with limits.
 	app = appender(app, sl.sampleLimit)
 
@@ -1524,6 +1556,10 @@ loop:
 			t = *parsedTimestamp
 		}
 
+		// Zero metadata out for current iteration until it's resolved.
+		meta = metadata.Metadata{}
+		metadataChanged = false
+
 		if sl.cache.getDropped(yoloString(met)) {
 			continue
 		}
@@ -1538,6 +1574,9 @@ loop:
 		if ok {
 			ref = ce.ref
 			lset = ce.lset
+
+			// Update metadata only if it changed in the current iteration.
+			updateMetadata(lset, false)
 		} else {
 			mets = p.Metric(&lset)
 			hash = lset.Hash()
@@ -1562,6 +1601,9 @@ loop:
 				targetScrapePoolExceededLabelLimits.Inc()
 				break loop
 			}
+
+			// Append metadata for new series if they were present.
+			updateMetadata(lset, true)
 		}
 
 		if isHistogram {
@@ -1607,6 +1649,12 @@ loop:
 			e = exemplar.Exemplar{} // reset for next time round loop
 		}
 
+		if sl.appendMetadataToWAL && metadataChanged {
+			if _, merr := app.UpdateMetadata(ref, lset, meta); merr != nil {
+				// No need to fail the scrape on errors appending metadata.
+				level.Debug(sl.l).Log("msg", "Error when appending metadata in scrape loop", "ref", fmt.Sprintf("%d", ref), "metadata", fmt.Sprintf("%+v", meta), "err", merr)
+			}
+		}
 	}
 	if sampleLimitErr != nil {
 		if err == nil {

scrape/scrape_test.go

@@ -117,22 +117,12 @@ func TestDiscoveredLabelsUpdate(t *testing.T) {
 	}
 	sp.activeTargets = make(map[uint64]*Target)
 	t1 := &Target{
-		discoveredLabels: labels.Labels{
-			labels.Label{
-				Name:  "label",
-				Value: "name",
-			},
-		},
+		discoveredLabels: labels.FromStrings("label", "name"),
 	}
 	sp.activeTargets[t1.hash()] = t1
 
 	t2 := &Target{
-		discoveredLabels: labels.Labels{
-			labels.Label{
-				Name:  "labelNew",
-				Value: "nameNew",
-			},
-		},
+		discoveredLabels: labels.FromStrings("labelNew", "nameNew"),
 	}
 	sp.sync([]*Target{t2})
 
@@ -625,7 +615,7 @@ func TestScrapeLoopStopBeforeRun(t *testing.T) {
 		1,
 		0,
 		false,
-		nil,
+		false,
 		nil,
 		false,
 	)
@@ -697,7 +687,7 @@ func TestScrapeLoopStop(t *testing.T) {
 		10*time.Millisecond,
 		time.Hour,
 		false,
-		nil,
+		false,
 		nil,
 		false,
 	)
@@ -772,7 +762,7 @@ func TestScrapeLoopRun(t *testing.T) {
 		time.Second,
 		time.Hour,
 		false,
-		nil,
+		false,
 		nil,
 		false,
 	)
@@ -827,7 +817,7 @@ func TestScrapeLoopRun(t *testing.T) {
 		time.Second,
 		100*time.Millisecond,
 		false,
-		nil,
+		false,
 		nil,
 		false,
 	)
@@ -886,7 +876,7 @@ func TestScrapeLoopForcedErr(t *testing.T) {
 		time.Second,
 		time.Hour,
 		false,
-		nil,
+		false,
 		nil,
 		false,
 	)
@@ -944,7 +934,7 @@ func TestScrapeLoopMetadata(t *testing.T) {
 		0,
 		0,
 		false,
-		nil,
+		false,
 		nil,
 		false,
 	)
@@ -1001,7 +991,7 @@ func simpleTestScrapeLoop(t testing.TB) (context.Context, *scrapeLoop) {
 		0,
 		0,
 		false,
-		nil,
+		false,
 		nil,
 		false,
 	)
@@ -1094,7 +1084,7 @@ func TestScrapeLoopRunCreatesStaleMarkersOnFailedScrape(t *testing.T) {
 		10*time.Millisecond,
 		time.Hour,
 		false,
-		nil,
+		false,
 		nil,
 		false,
 	)
@@ -1156,7 +1146,7 @@ func TestScrapeLoopRunCreatesStaleMarkersOnParseFailure(t *testing.T) {
 		10*time.Millisecond,
 		time.Hour,
 		false,
-		nil,
+		false,
 		nil,
 		false,
 	)
@@ -1222,7 +1212,7 @@ func TestScrapeLoopCache(t *testing.T) {
 		10*time.Millisecond,
 		time.Hour,
 		false,
-		nil,
+		false,
 		nil,
 		false,
 	)
@@ -1304,7 +1294,7 @@ func TestScrapeLoopCacheMemoryExhaustionProtection(t *testing.T) {
 		10*time.Millisecond,
 		time.Hour,
 		false,
-		nil,
+		false,
 		nil,
 		false,
 	)
@@ -1418,7 +1408,7 @@ func TestScrapeLoopAppend(t *testing.T) {
 			0,
 			0,
 			false,
-			nil,
+			false,
 			nil,
 			false,
 		)
@@ -1508,7 +1498,7 @@ func TestScrapeLoopAppendForConflictingPrefixedLabels(t *testing.T) {
 					return mutateSampleLabels(l, &Target{labels: labels.FromStrings(tc.targetLabels...)}, false, nil)
 				},
 				nil,
-				func(ctx context.Context) storage.Appender { return app }, nil, 0, true, 0, nil, 0, 0, false, nil, nil, false,
+				func(ctx context.Context) storage.Appender { return app }, nil, 0, true, 0, nil, 0, 0, false, false, nil, false,
 			)
 			slApp := sl.appender(context.Background())
 			_, _, _, err := sl.append(slApp, []byte(tc.exposedLabels), "", time.Date(2000, 1, 1, 1, 0, 0, 0, time.UTC))
@@ -1544,7 +1534,7 @@ func TestScrapeLoopAppendCacheEntryButErrNotFound(t *testing.T) {
 		0,
 		0,
 		false,
-		nil,
+		false,
 		nil,
 		false,
 	)
@@ -1602,7 +1592,7 @@ func TestScrapeLoopAppendSampleLimit(t *testing.T) {
 		0,
 		0,
 		false,
-		nil,
+		false,
 		nil,
 		false,
 	)
@@ -1679,7 +1669,7 @@ func TestScrapeLoop_ChangingMetricString(t *testing.T) {
 		0,
 		0,
 		false,
-		nil,
+		false,
 		nil,
 		false,
 	)
@@ -1727,7 +1717,7 @@ func TestScrapeLoopAppendStaleness(t *testing.T) {
 		0,
 		0,
 		false,
-		nil,
+		false,
 		nil,
 		false,
 	)
@@ -1778,7 +1768,7 @@ func TestScrapeLoopAppendNoStalenessIfTimestamp(t *testing.T) {
 		0,
 		0,
 		false,
-		nil,
+		false,
 		nil,
 		false,
 	)
@@ -1889,7 +1879,7 @@ metric_total{n="2"} 2 # {t="2"} 2.0 20000
 				0,
 				0,
 				false,
-				nil,
+				false,
 				nil,
 				false,
 			)
@@ -1954,7 +1944,7 @@ func TestScrapeLoopAppendExemplarSeries(t *testing.T) {
 		0,
 		0,
 		false,
-		nil,
+		false,
 		nil,
 		false,
 	)
@@ -2006,7 +1996,7 @@ func TestScrapeLoopRunReportsTargetDownOnScrapeError(t *testing.T) {
 		10*time.Millisecond,
 		time.Hour,
 		false,
-		nil,
+		false,
 		nil,
 		false,
 	)
@@ -2042,7 +2032,7 @@ func TestScrapeLoopRunReportsTargetDownOnInvalidUTF8(t *testing.T) {
 		10*time.Millisecond,
 		time.Hour,
 		false,
-		nil,
+		false,
 		nil,
 		false,
 	)
@@ -2091,7 +2081,7 @@ func TestScrapeLoopAppendGracefullyIfAmendOrOutOfOrderOrOutOfBounds(t *testing.T
 		0,
 		0,
 		false,
-		nil,
+		false,
 		nil,
 		false,
 	)
@@ -2136,7 +2126,7 @@ func TestScrapeLoopOutOfBoundsTimeError(t *testing.T) {
 		0,
 		0,
 		false,
-		nil,
+		false,
 		nil,
 		false,
 	)
@@ -2393,7 +2383,7 @@ func TestScrapeLoop_RespectTimestamps(t *testing.T) {
 		0,
 		0,
 		false,
-		nil,
+		false,
 		nil,
 		false,
 	)
@@ -2434,7 +2424,7 @@ func TestScrapeLoop_DiscardTimestamps(t *testing.T) {
 		0,
 		0,
 		false,
-		nil,
+		false,
 		nil,
 		false,
 	)
@@ -2474,7 +2464,7 @@ func TestScrapeLoopDiscardDuplicateLabels(t *testing.T) {
 		0,
 		0,
 		false,
-		nil,
+		false,
 		nil,
 		false,
 	)
@@ -2518,7 +2508,7 @@ func TestScrapeLoopDiscardUnnamedMetrics(t *testing.T) {
 		nil, nil,
 		func(l labels.Labels) labels.Labels {
 			if l.Has("drop") {
-				return labels.Labels{}
+				return labels.FromStrings("no", "name") // This label set will trigger an error.
 			}
 			return l
 		},
@@ -2532,7 +2522,7 @@ func TestScrapeLoopDiscardUnnamedMetrics(t *testing.T) {
 		0,
 		0,
 		false,
-		nil,
+		false,
 		nil,
 		false,
 	)
@@ -2629,20 +2619,7 @@ func TestReuseScrapeCache(t *testing.T) {
 		}
 		sp, _ = newScrapePool(cfg, app, 0, nil, &Options{})
 		t1    = &Target{
-			discoveredLabels: labels.Labels{
-				labels.Label{
-					Name:  "labelNew",
-					Value: "nameNew",
-				},
-				labels.Label{
-					Name:  "labelNew1",
-					Value: "nameNew1",
-				},
-				labels.Label{
-					Name:  "labelNew2",
-					Value: "nameNew2",
-				},
-			},
+			discoveredLabels: labels.FromStrings("labelNew", "nameNew", "labelNew1", "nameNew1", "labelNew2", "nameNew2"),
 		}
 		proxyURL, _ = url.Parse("http://localhost:2128")
 	)
@@ -2808,7 +2785,7 @@ func TestScrapeAddFast(t *testing.T) {
 		0,
 		0,
 		false,
-		nil,
+		false,
 		nil,
 		false,
 	)
@@ -2842,12 +2819,7 @@ func TestReuseCacheRace(t *testing.T) {
 		}
 		sp, _ = newScrapePool(cfg, app, 0, nil, &Options{})
 		t1    = &Target{
-			discoveredLabels: labels.Labels{
-				labels.Label{
-					Name:  "labelNew",
-					Value: "nameNew",
-				},
-			},
+			discoveredLabels: labels.FromStrings("labelNew", "nameNew"),
 		}
 	)
 	defer sp.stop()
@@ -2899,7 +2871,7 @@ func TestScrapeReportSingleAppender(t *testing.T) {
 		10*time.Millisecond,
 		time.Hour,
 		false,
-		nil,
+		false,
 		nil,
 		false,
 	)
@@ -3101,7 +3073,7 @@ func TestScrapeLoopLabelLimit(t *testing.T) {
 			0,
 			0,
 			false,
-			nil,
+			false,
 			nil,
 			false,
 		)

scrape/target.go

@@ -374,7 +374,7 @@ func PopulateLabels(lset labels.Labels, cfg *config.ScrapeConfig, noDefaultPort
 		}
 	}
 
-	preRelabelLabels := lb.Labels()
+	preRelabelLabels := lb.Labels(nil)
 	lset = relabel.Process(preRelabelLabels, cfg.RelabelConfigs...)
 
 	// Check if the target was dropped.
@@ -472,7 +472,7 @@ func PopulateLabels(lset labels.Labels, cfg *config.ScrapeConfig, noDefaultPort
 		lb.Set(model.InstanceLabel, addr)
 	}
 
-	res = lb.Labels()
+	res = lb.Labels(nil)
 	for _, l := range res {
 		// Check label values are valid, drop the target if not.
 		if !model.LabelValue(l.Value).IsValid() {

scrape/target_test.go

@@ -129,7 +129,7 @@ func newTestTarget(targetURL string, deadline time.Duration, lbls labels.Labels)
 	lb.Set(model.AddressLabel, strings.TrimPrefix(targetURL, "http://"))
 	lb.Set(model.MetricsPathLabel, "/metrics")
 
-	return &Target{labels: lb.Labels()}
+	return &Target{labels: lb.Labels(nil)}
 }
 
 func TestNewHTTPBearerToken(t *testing.T) {

scripts/compress_assets.sh

@@ -6,6 +6,11 @@ set -euo pipefail
 
 cd web/ui
 cp embed.go.tmpl embed.go
+
+GZIP_OPTS="-fk"
+# gzip option '-k' may not always exist in the latest gzip available on different distros.
+if ! gzip -k -h &>/dev/null; then GZIP_OPTS="-f"; fi
+
 find static -type f -name '*.gz' -delete
-find static -type f -exec gzip -fk '{}' \; -print0 | xargs -0 -I % echo %.gz | xargs echo //go:embed >> embed.go
+find static -type f -exec gzip $GZIP_OPTS '{}' \; -print0 | xargs -0 -I % echo %.gz | xargs echo //go:embed >> embed.go
 echo var EmbedFS embed.FS >> embed.go

scripts/npm-deps.sh

@@ -1,15 +1,21 @@
 #!/bin/bash
 
+set -e
+
+current=$(pwd)
+root_ui_folder=${current}/web/ui
+
 function ncu() {
     target=$1
     npx npm-check-updates -u --target "${target}"
 }
 
-cd web/ui
-for workspace in $(npm ls --production --depth 1 -json | jq -r '.dependencies[].resolved[8:]'); do
+cd "${root_ui_folder}"
+
+for workspace in $(jq -r '.workspaces[]' < package.json); do
   cd "${workspace}"
   ncu "$1"
-  cd ../
+  cd "${root_ui_folder}"
 done
 
 ncu "$1"

scripts/sync_repo_files.sh

@@ -47,12 +47,6 @@ source_dir="$(pwd)"
 tmp_dir="$(mktemp -d)"
 trap 'rm -rf "${tmp_dir}"' EXIT
 
-prometheus_orb_version="$(yq eval '.orbs.prometheus' .circleci/config.yml)"
-if [[ -z "${prometheus_orb_version}" ]]; then
-  echo_red '"ERROR: Unable to get CircleCI orb version'
-  exit 1
-fi
-
 ## Internal functions
 github_api() {
   local url
@@ -105,24 +99,6 @@ check_go() {
   curl -sLf -o /dev/null "https://raw.githubusercontent.com/${org_repo}/${default_branch}/go.mod"
 }
 
-check_circleci_orb() {
-  local org_repo
-  local default_branch
-  org_repo="$1"
-  default_branch="$2"
-  local ci_config_url="https://raw.githubusercontent.com/${org_repo}/${default_branch}/.circleci/config.yml"
-
-  orb_version="$(curl -sL --fail "${ci_config_url}" | yq eval '.orbs.prometheus' -)"
-  if [[ -z "${orb_version}" ]]; then
-    echo_yellow "WARNING: Failed to fetch CirleCI orb version from '${org_repo}'"
-    return 0
-  fi
-
-  if [[ "${orb_version}" != "null" && "${orb_version}" != "${prometheus_orb_version}" ]]; then
-    echo "CircleCI-orb"
-  fi
-}
-
 process_repo() {
   local org_repo
   local default_branch
@@ -168,13 +144,6 @@ process_repo() {
     needs_update+=("${source_file}")
   done
 
-  local circleci
-  circleci="$(check_circleci_orb "${org_repo}" "${default_branch}")"
-  if [[ -n "${circleci}" ]]; then
-    echo "${circleci} needs updating."
-    needs_update+=("${circleci}")
-  fi
-
   if [[ "${#needs_update[@]}" -eq 0 ]] ; then
     echo "No files need sync."
     return
@@ -191,7 +160,6 @@ process_repo() {
   # Update the files in target repo by one from prometheus/prometheus.
   for source_file in "${needs_update[@]}"; do
     case "${source_file}" in
-      CircleCI-orb) yq eval -i ".orbs.prometheus = \"${prometheus_orb_version}\"" .circleci/config.yml ;;
       *) cp -f "${source_dir}/${source_file}" "./${source_file}" ;;
     esac
   done

storage/buffer_test.go

@@ -184,7 +184,7 @@ func BenchmarkBufferedSeriesIterator(b *testing.B) {
 	// Simulate a 5 minute rate.
 	it := NewBufferIterator(newFakeSeriesIterator(int64(b.N), 30), 5*60)
 
-	b.SetBytes(int64(b.N * 16))
+	b.SetBytes(16)
 	b.ReportAllocs()
 	b.ResetTimer()
 

storage/interface.go

@@ -28,19 +28,24 @@ import (
 
 // The errors exposed.
 var (
-	ErrNotFound                      = errors.New("not found")
-	ErrOutOfOrderSample              = errors.New("out of order sample")
+	ErrNotFound = errors.New("not found")
+	// ErrOutOfOrderSample is when out of order support is disabled and the sample is out of order.
+	ErrOutOfOrderSample = errors.New("out of order sample")
+	// ErrOutOfBounds is when out of order support is disabled and the sample is older than the min valid time for the append.
+	ErrOutOfBounds = errors.New("out of bounds")
+	// ErrTooOldSample is when out of order support is enabled but the sample is outside the time window allowed.
+	ErrTooOldSample = errors.New("too old sample")
+	// ErrDuplicateSampleForTimestamp is when the sample has same timestamp but different value.
 	ErrDuplicateSampleForTimestamp   = errors.New("duplicate sample for timestamp")
-	ErrOutOfBounds                   = errors.New("out of bounds")
 	ErrOutOfOrderExemplar            = errors.New("out of order exemplar")
 	ErrDuplicateExemplar             = errors.New("duplicate exemplar")
 	ErrExemplarLabelLength           = fmt.Errorf("label length for exemplar exceeds maximum of %d UTF-8 characters", exemplar.ExemplarMaxLabelSetLength)
 	ErrExemplarsDisabled             = fmt.Errorf("exemplar storage is disabled or max exemplars is less than or equal to 0")
 	ErrNativeHistogramsDisabled      = fmt.Errorf("native histograms are disabled")
+	ErrHistogramCountNotBigEnough    = errors.New("histogram's observation count should be at least the number of observations found in the buckets")
+	ErrHistogramNegativeBucketCount  = errors.New("histogram has a bucket whose observation count is negative")
 	ErrHistogramSpanNegativeOffset   = errors.New("histogram has a span whose offset is negative")
 	ErrHistogramSpansBucketsMismatch = errors.New("histogram spans specify different number of buckets than provided")
-	ErrHistogramNegativeBucketCount  = errors.New("histogram has a bucket whose observation count is negative")
-	ErrHistogramCountNotBigEnough    = errors.New("histogram's observation count should be at least the number of observations found in the buckets")
 )
 
 // SeriesRef is a generic series reference. In prometheus it is either a

storage/memoized_iterator_test.go

@@ -78,7 +78,7 @@ func BenchmarkMemoizedSeriesIterator(b *testing.B) {
 	// Simulate a 5 minute rate.
 	it := NewMemoizedIterator(newFakeSeriesIterator(int64(b.N), 30), 5*60)
 
-	b.SetBytes(int64(b.N * 16))
+	b.SetBytes(16)
 	b.ReportAllocs()
 	b.ResetTimer()
 

storage/merge.go

@@ -18,7 +18,6 @@ import (
 	"container/heap"
 	"fmt"
 	"math"
-	"sort"
 	"sync"
 
 	"github.com/prometheus/prometheus/model/histogram"
@@ -26,6 +25,7 @@ import (
 	"github.com/prometheus/prometheus/tsdb/chunkenc"
 	"github.com/prometheus/prometheus/tsdb/chunks"
 	tsdb_errors "github.com/prometheus/prometheus/tsdb/errors"
+	"golang.org/x/exp/slices"
 )
 
 type mergeGenericQuerier struct {
@@ -241,7 +241,7 @@ func (q *mergeGenericQuerier) LabelNames(matchers ...*labels.Matcher) ([]string,
 	for name := range labelNamesMap {
 		labelNames = append(labelNames, name)
 	}
-	sort.Strings(labelNames)
+	slices.Sort(labelNames)
 	return labelNames, warnings, nil
 }
 
@@ -740,3 +740,56 @@ func (h *chunkIteratorHeap) Pop() interface{} {
 	*h = old[0 : n-1]
 	return x
 }
+
+// NewConcatenatingChunkSeriesMerger returns a VerticalChunkSeriesMergeFunc that simply concatenates the
+// chunks from the series. The resultant stream of chunks for a series might be overlapping and unsorted.
+func NewConcatenatingChunkSeriesMerger() VerticalChunkSeriesMergeFunc {
+	return func(series ...ChunkSeries) ChunkSeries {
+		if len(series) == 0 {
+			return nil
+		}
+		return &ChunkSeriesEntry{
+			Lset: series[0].Labels(),
+			ChunkIteratorFn: func() chunks.Iterator {
+				iterators := make([]chunks.Iterator, 0, len(series))
+				for _, s := range series {
+					iterators = append(iterators, s.Iterator())
+				}
+				return &concatenatingChunkIterator{
+					iterators: iterators,
+				}
+			},
+		}
+	}
+}
+
+type concatenatingChunkIterator struct {
+	iterators []chunks.Iterator
+	idx       int
+
+	curr chunks.Meta
+}
+
+func (c *concatenatingChunkIterator) At() chunks.Meta {
+	return c.curr
+}
+
+func (c *concatenatingChunkIterator) Next() bool {
+	if c.idx >= len(c.iterators) {
+		return false
+	}
+	if c.iterators[c.idx].Next() {
+		c.curr = c.iterators[c.idx].At()
+		return true
+	}
+	c.idx++
+	return c.Next()
+}
+
+func (c *concatenatingChunkIterator) Err() error {
+	errs := tsdb_errors.NewMulti()
+	for _, iter := range c.iterators {
+		errs.Add(iter.Err())
+	}
+	return errs.Err()
+}

storage/merge_test.go

@@ -542,6 +542,140 @@ func TestCompactingChunkSeriesMerger(t *testing.T) {
 	}
 }
 
+func TestConcatenatingChunkSeriesMerger(t *testing.T) {
+	m := NewConcatenatingChunkSeriesMerger()
+
+	for _, tc := range []struct {
+		name     string
+		input    []ChunkSeries
+		expected ChunkSeries
+	}{
+		{
+			name: "single empty series",
+			input: []ChunkSeries{
+				NewListChunkSeriesFromSamples(labels.FromStrings("bar", "baz"), nil),
+			},
+			expected: NewListChunkSeriesFromSamples(labels.FromStrings("bar", "baz"), nil),
+		},
+		{
+			name: "single series",
+			input: []ChunkSeries{
+				NewListChunkSeriesFromSamples(labels.FromStrings("bar", "baz"), []tsdbutil.Sample{sample{1, 1}, sample{2, 2}}, []tsdbutil.Sample{sample{3, 3}}),
+			},
+			expected: NewListChunkSeriesFromSamples(labels.FromStrings("bar", "baz"), []tsdbutil.Sample{sample{1, 1}, sample{2, 2}}, []tsdbutil.Sample{sample{3, 3}}),
+		},
+		{
+			name: "two empty series",
+			input: []ChunkSeries{
+				NewListChunkSeriesFromSamples(labels.FromStrings("bar", "baz"), nil),
+				NewListChunkSeriesFromSamples(labels.FromStrings("bar", "baz"), nil),
+			},
+			expected: NewListChunkSeriesFromSamples(labels.FromStrings("bar", "baz"), nil, nil),
+		},
+		{
+			name: "two non overlapping",
+			input: []ChunkSeries{
+				NewListChunkSeriesFromSamples(labels.FromStrings("bar", "baz"), []tsdbutil.Sample{sample{1, 1}, sample{2, 2}}, []tsdbutil.Sample{sample{3, 3}, sample{5, 5}}),
+				NewListChunkSeriesFromSamples(labels.FromStrings("bar", "baz"), []tsdbutil.Sample{sample{7, 7}, sample{9, 9}}, []tsdbutil.Sample{sample{10, 10}}),
+			},
+			expected: NewListChunkSeriesFromSamples(labels.FromStrings("bar", "baz"), []tsdbutil.Sample{sample{1, 1}, sample{2, 2}}, []tsdbutil.Sample{sample{3, 3}, sample{5, 5}}, []tsdbutil.Sample{sample{7, 7}, sample{9, 9}}, []tsdbutil.Sample{sample{10, 10}}),
+		},
+		{
+			name: "two overlapping",
+			input: []ChunkSeries{
+				NewListChunkSeriesFromSamples(labels.FromStrings("bar", "baz"), []tsdbutil.Sample{sample{1, 1}, sample{2, 2}}, []tsdbutil.Sample{sample{3, 3}, sample{8, 8}}),
+				NewListChunkSeriesFromSamples(labels.FromStrings("bar", "baz"), []tsdbutil.Sample{sample{7, 7}, sample{9, 9}}, []tsdbutil.Sample{sample{10, 10}}),
+			},
+			expected: NewListChunkSeriesFromSamples(labels.FromStrings("bar", "baz"),
+				[]tsdbutil.Sample{sample{1, 1}, sample{2, 2}}, []tsdbutil.Sample{sample{3, 3}, sample{8, 8}},
+				[]tsdbutil.Sample{sample{7, 7}, sample{9, 9}}, []tsdbutil.Sample{sample{10, 10}},
+			),
+		},
+		{
+			name: "two duplicated",
+			input: []ChunkSeries{
+				NewListChunkSeriesFromSamples(labels.FromStrings("bar", "baz"), []tsdbutil.Sample{sample{1, 1}, sample{2, 2}, sample{3, 3}, sample{5, 5}}),
+				NewListChunkSeriesFromSamples(labels.FromStrings("bar", "baz"), []tsdbutil.Sample{sample{2, 2}, sample{3, 3}, sample{5, 5}}),
+			},
+			expected: NewListChunkSeriesFromSamples(labels.FromStrings("bar", "baz"),
+				[]tsdbutil.Sample{sample{1, 1}, sample{2, 2}, sample{3, 3}, sample{5, 5}},
+				[]tsdbutil.Sample{sample{2, 2}, sample{3, 3}, sample{5, 5}},
+			),
+		},
+		{
+			name: "three overlapping",
+			input: []ChunkSeries{
+				NewListChunkSeriesFromSamples(labels.FromStrings("bar", "baz"), []tsdbutil.Sample{sample{1, 1}, sample{2, 2}, sample{3, 3}, sample{5, 5}}),
+				NewListChunkSeriesFromSamples(labels.FromStrings("bar", "baz"), []tsdbutil.Sample{sample{2, 2}, sample{3, 3}, sample{6, 6}}),
+				NewListChunkSeriesFromSamples(labels.FromStrings("bar", "baz"), []tsdbutil.Sample{sample{0, 0}, sample{4, 4}}),
+			},
+			expected: NewListChunkSeriesFromSamples(labels.FromStrings("bar", "baz"),
+				[]tsdbutil.Sample{sample{1, 1}, sample{2, 2}, sample{3, 3}, sample{5, 5}},
+				[]tsdbutil.Sample{sample{2, 2}, sample{3, 3}, sample{6, 6}},
+				[]tsdbutil.Sample{sample{0, 0}, sample{4, 4}},
+			),
+		},
+		{
+			name: "three in chained overlap",
+			input: []ChunkSeries{
+				NewListChunkSeriesFromSamples(labels.FromStrings("bar", "baz"), []tsdbutil.Sample{sample{1, 1}, sample{2, 2}, sample{3, 3}, sample{5, 5}}),
+				NewListChunkSeriesFromSamples(labels.FromStrings("bar", "baz"), []tsdbutil.Sample{sample{4, 4}, sample{6, 66}}),
+				NewListChunkSeriesFromSamples(labels.FromStrings("bar", "baz"), []tsdbutil.Sample{sample{6, 6}, sample{10, 10}}),
+			},
+			expected: NewListChunkSeriesFromSamples(labels.FromStrings("bar", "baz"),
+				[]tsdbutil.Sample{sample{1, 1}, sample{2, 2}, sample{3, 3}, sample{5, 5}},
+				[]tsdbutil.Sample{sample{4, 4}, sample{6, 66}},
+				[]tsdbutil.Sample{sample{6, 6}, sample{10, 10}},
+			),
+		},
+		{
+			name: "three in chained overlap complex",
+			input: []ChunkSeries{
+				NewListChunkSeriesFromSamples(labels.FromStrings("bar", "baz"), []tsdbutil.Sample{sample{0, 0}, sample{5, 5}}, []tsdbutil.Sample{sample{10, 10}, sample{15, 15}}),
+				NewListChunkSeriesFromSamples(labels.FromStrings("bar", "baz"), []tsdbutil.Sample{sample{2, 2}, sample{20, 20}}, []tsdbutil.Sample{sample{25, 25}, sample{30, 30}}),
+				NewListChunkSeriesFromSamples(labels.FromStrings("bar", "baz"), []tsdbutil.Sample{sample{18, 18}, sample{26, 26}}, []tsdbutil.Sample{sample{31, 31}, sample{35, 35}}),
+			},
+			expected: NewListChunkSeriesFromSamples(labels.FromStrings("bar", "baz"),
+				[]tsdbutil.Sample{sample{0, 0}, sample{5, 5}}, []tsdbutil.Sample{sample{10, 10}, sample{15, 15}},
+				[]tsdbutil.Sample{sample{2, 2}, sample{20, 20}}, []tsdbutil.Sample{sample{25, 25}, sample{30, 30}},
+				[]tsdbutil.Sample{sample{18, 18}, sample{26, 26}}, []tsdbutil.Sample{sample{31, 31}, sample{35, 35}},
+			),
+		},
+		{
+			name: "110 overlapping",
+			input: []ChunkSeries{
+				NewListChunkSeriesFromSamples(labels.FromStrings("bar", "baz"), tsdbutil.GenerateSamples(0, 110)), // [0 - 110)
+				NewListChunkSeriesFromSamples(labels.FromStrings("bar", "baz"), tsdbutil.GenerateSamples(60, 50)), // [60 - 110)
+			},
+			expected: NewListChunkSeriesFromSamples(labels.FromStrings("bar", "baz"),
+				tsdbutil.GenerateSamples(0, 110),
+				tsdbutil.GenerateSamples(60, 50),
+			),
+		},
+		{
+			name: "150 overlapping samples, simply concatenated and no splits",
+			input: []ChunkSeries{
+				NewListChunkSeriesFromSamples(labels.FromStrings("bar", "baz"), tsdbutil.GenerateSamples(0, 90)),  // [0 - 90)
+				NewListChunkSeriesFromSamples(labels.FromStrings("bar", "baz"), tsdbutil.GenerateSamples(60, 90)), // [90 - 150)
+			},
+			expected: NewListChunkSeriesFromSamples(labels.FromStrings("bar", "baz"),
+				tsdbutil.GenerateSamples(0, 90),
+				tsdbutil.GenerateSamples(60, 90),
+			),
+		},
+	} {
+		t.Run(tc.name, func(t *testing.T) {
+			merged := m(tc.input...)
+			require.Equal(t, tc.expected.Labels(), merged.Labels())
+			actChks, actErr := ExpandChunks(merged.Iterator())
+			expChks, expErr := ExpandChunks(tc.expected.Iterator())
+
+			require.Equal(t, expErr, actErr)
+			require.Equal(t, expChks, actChks)
+		})
+	}
+}
+
 type mockQuerier struct {
 	LabelQuerier
 
@@ -739,7 +873,7 @@ var result []tsdbutil.Sample
 func makeSeriesSet(numSeries, numSamples int) SeriesSet {
 	series := []Series{}
 	for j := 0; j < numSeries; j++ {
-		labels := labels.Labels{{Name: "foo", Value: fmt.Sprintf("bar%d", j)}}
+		labels := labels.FromStrings("foo", fmt.Sprintf("bar%d", j))
 		samples := []tsdbutil.Sample{}
 		for k := 0; k < numSamples; k++ {
 			samples = append(samples, sample{t: int64(k), v: float64(k)})

storage/remote/codec_test.go

@@ -189,12 +189,9 @@ func TestConcreteSeriesSet(t *testing.T) {
 }
 
 func TestConcreteSeriesClonesLabels(t *testing.T) {
-	lbls := labels.Labels{
-		labels.Label{Name: "a", Value: "b"},
-		labels.Label{Name: "c", Value: "d"},
-	}
+	lbls := labels.FromStrings("a", "b", "c", "d")
 	cs := concreteSeries{
-		labels: labels.New(lbls...),
+		labels: lbls,
 	}
 
 	gotLabels := cs.Labels()

storage/remote/queue_manager_test.go

@@ -200,7 +200,7 @@ func TestSampleDeliveryTimeout(t *testing.T) {
 	dir := t.TempDir()
 
 	metrics := newQueueManagerMetrics(nil, "", "")
-	m := NewQueueManager(metrics, nil, nil, nil, dir, newEWMARate(ewmaWeight, shardUpdateDuration), cfg, mcfg, nil, nil, c, defaultFlushDeadline, newPool(), newHighestTimestampMetric(), nil, false, false)
+	m := NewQueueManager(metrics, nil, nil, nil, dir, newEWMARate(ewmaWeight, shardUpdateDuration), cfg, mcfg, labels.EmptyLabels(), nil, c, defaultFlushDeadline, newPool(), newHighestTimestampMetric(), nil, false, false)
 	m.StoreSeries(series, 0)
 	m.Start()
 	defer m.Stop()
@@ -229,7 +229,7 @@ func TestSampleDeliveryOrder(t *testing.T) {
 		})
 		series = append(series, record.RefSeries{
 			Ref:    chunks.HeadSeriesRef(i),
-			Labels: labels.Labels{labels.Label{Name: "__name__", Value: name}},
+			Labels: labels.FromStrings("__name__", name),
 		})
 	}
 
@@ -242,7 +242,7 @@ func TestSampleDeliveryOrder(t *testing.T) {
 	mcfg := config.DefaultMetadataConfig
 
 	metrics := newQueueManagerMetrics(nil, "", "")
-	m := NewQueueManager(metrics, nil, nil, nil, dir, newEWMARate(ewmaWeight, shardUpdateDuration), cfg, mcfg, nil, nil, c, defaultFlushDeadline, newPool(), newHighestTimestampMetric(), nil, false, false)
+	m := NewQueueManager(metrics, nil, nil, nil, dir, newEWMARate(ewmaWeight, shardUpdateDuration), cfg, mcfg, labels.EmptyLabels(), nil, c, defaultFlushDeadline, newPool(), newHighestTimestampMetric(), nil, false, false)
 	m.StoreSeries(series, 0)
 
 	m.Start()
@@ -262,7 +262,7 @@ func TestShutdown(t *testing.T) {
 	mcfg := config.DefaultMetadataConfig
 	metrics := newQueueManagerMetrics(nil, "", "")
 
-	m := NewQueueManager(metrics, nil, nil, nil, dir, newEWMARate(ewmaWeight, shardUpdateDuration), cfg, mcfg, nil, nil, c, deadline, newPool(), newHighestTimestampMetric(), nil, false, false)
+	m := NewQueueManager(metrics, nil, nil, nil, dir, newEWMARate(ewmaWeight, shardUpdateDuration), cfg, mcfg, labels.EmptyLabels(), nil, c, deadline, newPool(), newHighestTimestampMetric(), nil, false, false)
 	n := 2 * config.DefaultQueueConfig.MaxSamplesPerSend
 	samples, series := createTimeseries(n, n)
 	m.StoreSeries(series, 0)
@@ -300,11 +300,11 @@ func TestSeriesReset(t *testing.T) {
 	cfg := config.DefaultQueueConfig
 	mcfg := config.DefaultMetadataConfig
 	metrics := newQueueManagerMetrics(nil, "", "")
-	m := NewQueueManager(metrics, nil, nil, nil, dir, newEWMARate(ewmaWeight, shardUpdateDuration), cfg, mcfg, nil, nil, c, deadline, newPool(), newHighestTimestampMetric(), nil, false, false)
+	m := NewQueueManager(metrics, nil, nil, nil, dir, newEWMARate(ewmaWeight, shardUpdateDuration), cfg, mcfg, labels.EmptyLabels(), nil, c, deadline, newPool(), newHighestTimestampMetric(), nil, false, false)
 	for i := 0; i < numSegments; i++ {
 		series := []record.RefSeries{}
 		for j := 0; j < numSeries; j++ {
-			series = append(series, record.RefSeries{Ref: chunks.HeadSeriesRef((i * 100) + j), Labels: labels.Labels{{Name: "a", Value: "a"}}})
+			series = append(series, record.RefSeries{Ref: chunks.HeadSeriesRef((i * 100) + j), Labels: labels.FromStrings("a", "a")})
 		}
 		m.StoreSeries(series, i)
 	}
@@ -329,7 +329,7 @@ func TestReshard(t *testing.T) {
 	dir := t.TempDir()
 
 	metrics := newQueueManagerMetrics(nil, "", "")
-	m := NewQueueManager(metrics, nil, nil, nil, dir, newEWMARate(ewmaWeight, shardUpdateDuration), cfg, mcfg, nil, nil, c, defaultFlushDeadline, newPool(), newHighestTimestampMetric(), nil, false, false)
+	m := NewQueueManager(metrics, nil, nil, nil, dir, newEWMARate(ewmaWeight, shardUpdateDuration), cfg, mcfg, labels.EmptyLabels(), nil, c, defaultFlushDeadline, newPool(), newHighestTimestampMetric(), nil, false, false)
 	m.StoreSeries(series, 0)
 
 	m.Start()
@@ -365,7 +365,7 @@ func TestReshardRaceWithStop(t *testing.T) {
 	go func() {
 		for {
 			metrics := newQueueManagerMetrics(nil, "", "")
-			m = NewQueueManager(metrics, nil, nil, nil, "", newEWMARate(ewmaWeight, shardUpdateDuration), cfg, mcfg, nil, nil, c, defaultFlushDeadline, newPool(), newHighestTimestampMetric(), nil, false, false)
+			m = NewQueueManager(metrics, nil, nil, nil, "", newEWMARate(ewmaWeight, shardUpdateDuration), cfg, mcfg, labels.EmptyLabels(), nil, c, defaultFlushDeadline, newPool(), newHighestTimestampMetric(), nil, false, false)
 			m.Start()
 			h.Unlock()
 			h.Lock()
@@ -400,7 +400,7 @@ func TestReshardPartialBatch(t *testing.T) {
 	cfg.BatchSendDeadline = model.Duration(batchSendDeadline)
 
 	metrics := newQueueManagerMetrics(nil, "", "")
-	m := NewQueueManager(metrics, nil, nil, nil, t.TempDir(), newEWMARate(ewmaWeight, shardUpdateDuration), cfg, mcfg, nil, nil, c, flushDeadline, newPool(), newHighestTimestampMetric(), nil, false, false)
+	m := NewQueueManager(metrics, nil, nil, nil, t.TempDir(), newEWMARate(ewmaWeight, shardUpdateDuration), cfg, mcfg, labels.EmptyLabels(), nil, c, flushDeadline, newPool(), newHighestTimestampMetric(), nil, false, false)
 	m.StoreSeries(series, 0)
 
 	m.Start()
@@ -445,7 +445,7 @@ func TestQueueFilledDeadlock(t *testing.T) {
 
 	metrics := newQueueManagerMetrics(nil, "", "")
 
-	m := NewQueueManager(metrics, nil, nil, nil, t.TempDir(), newEWMARate(ewmaWeight, shardUpdateDuration), cfg, mcfg, nil, nil, c, flushDeadline, newPool(), newHighestTimestampMetric(), nil, false, false)
+	m := NewQueueManager(metrics, nil, nil, nil, t.TempDir(), newEWMARate(ewmaWeight, shardUpdateDuration), cfg, mcfg, labels.EmptyLabels(), nil, c, flushDeadline, newPool(), newHighestTimestampMetric(), nil, false, false)
 	m.StoreSeries(series, 0)
 	m.Start()
 	defer m.Stop()
@@ -472,20 +472,15 @@ func TestReleaseNoninternedString(t *testing.T) {
 	mcfg := config.DefaultMetadataConfig
 	metrics := newQueueManagerMetrics(nil, "", "")
 	c := NewTestWriteClient()
-	m := NewQueueManager(metrics, nil, nil, nil, "", newEWMARate(ewmaWeight, shardUpdateDuration), cfg, mcfg, nil, nil, c, defaultFlushDeadline, newPool(), newHighestTimestampMetric(), nil, false, false)
+	m := NewQueueManager(metrics, nil, nil, nil, "", newEWMARate(ewmaWeight, shardUpdateDuration), cfg, mcfg, labels.EmptyLabels(), nil, c, defaultFlushDeadline, newPool(), newHighestTimestampMetric(), nil, false, false)
 	m.Start()
 	defer m.Stop()
 
 	for i := 1; i < 1000; i++ {
 		m.StoreSeries([]record.RefSeries{
 			{
-				Ref: chunks.HeadSeriesRef(i),
-				Labels: labels.Labels{
-					labels.Label{
-						Name:  "asdf",
-						Value: fmt.Sprintf("%d", i),
-					},
-				},
+				Ref:    chunks.HeadSeriesRef(i),
+				Labels: labels.FromStrings("asdf", fmt.Sprintf("%d", i)),
 			},
 		}, 0)
 		m.SeriesReset(1)
@@ -524,7 +519,7 @@ func TestShouldReshard(t *testing.T) {
 	for _, c := range cases {
 		metrics := newQueueManagerMetrics(nil, "", "")
 		client := NewTestWriteClient()
-		m := NewQueueManager(metrics, nil, nil, nil, "", newEWMARate(ewmaWeight, shardUpdateDuration), cfg, mcfg, nil, nil, client, defaultFlushDeadline, newPool(), newHighestTimestampMetric(), nil, false, false)
+		m := NewQueueManager(metrics, nil, nil, nil, "", newEWMARate(ewmaWeight, shardUpdateDuration), cfg, mcfg, labels.EmptyLabels(), nil, client, defaultFlushDeadline, newPool(), newHighestTimestampMetric(), nil, false, false)
 		m.numShards = c.startingShards
 		m.dataIn.incr(c.samplesIn)
 		m.dataOut.incr(c.samplesOut)
@@ -577,7 +572,7 @@ func createExemplars(numExemplars, numSeries int) ([]record.RefExemplar, []recor
 		}
 		series = append(series, record.RefSeries{
 			Ref:    chunks.HeadSeriesRef(i),
-			Labels: labels.Labels{{Name: "__name__", Value: name}},
+			Labels: labels.FromStrings("__name__", name),
 		})
 	}
 	return exemplars, series
@@ -615,12 +610,7 @@ func createHistograms(numSamples, numSeries int) ([]record.RefHistogramSample, [
 }
 
 func getSeriesNameFromRef(r record.RefSeries) string {
-	for _, l := range r.Labels {
-		if l.Name == "__name__" {
-			return l.Value
-		}
-	}
-	return ""
+	return r.Labels.Get("__name__")
 }
 
 type TestWriteClient struct {
@@ -743,13 +733,8 @@ func (c *TestWriteClient) Store(_ context.Context, req []byte) error {
 	}
 	count := 0
 	for _, ts := range reqProto.Timeseries {
-		var seriesName string
 		labels := labelProtosToLabels(ts.Labels)
-		for _, label := range labels {
-			if label.Name == "__name__" {
-				seriesName = label.Value
-			}
-		}
+		seriesName := labels.Get("__name__")
 		for _, sample := range ts.Samples {
 			count++
 			c.receivedSamples[seriesName] = append(c.receivedSamples[seriesName], sample)
@@ -860,7 +845,7 @@ func BenchmarkSampleSend(b *testing.B) {
 	dir := b.TempDir()
 
 	metrics := newQueueManagerMetrics(nil, "", "")
-	m := NewQueueManager(metrics, nil, nil, nil, dir, newEWMARate(ewmaWeight, shardUpdateDuration), cfg, mcfg, nil, nil, c, defaultFlushDeadline, newPool(), newHighestTimestampMetric(), nil, false, false)
+	m := NewQueueManager(metrics, nil, nil, nil, dir, newEWMARate(ewmaWeight, shardUpdateDuration), cfg, mcfg, labels.EmptyLabels(), nil, c, defaultFlushDeadline, newPool(), newHighestTimestampMetric(), nil, false, false)
 	m.StoreSeries(series, 0)
 
 	// These should be received by the client.
@@ -906,7 +891,7 @@ func BenchmarkStartup(b *testing.B) {
 		c := NewTestBlockedWriteClient()
 		m := NewQueueManager(metrics, nil, nil, logger, dir,
 			newEWMARate(ewmaWeight, shardUpdateDuration),
-			cfg, mcfg, nil, nil, c, 1*time.Minute, newPool(), newHighestTimestampMetric(), nil, false, false)
+			cfg, mcfg, labels.EmptyLabels(), nil, c, 1*time.Minute, newPool(), newHighestTimestampMetric(), nil, false, false)
 		m.watcher.SetStartTime(timestamp.Time(math.MaxInt64))
 		m.watcher.MaxSegment = segments[len(segments)-2]
 		err := m.watcher.Run()
@@ -982,7 +967,7 @@ func TestCalculateDesiredShards(t *testing.T) {
 
 	metrics := newQueueManagerMetrics(nil, "", "")
 	samplesIn := newEWMARate(ewmaWeight, shardUpdateDuration)
-	m := NewQueueManager(metrics, nil, nil, nil, dir, samplesIn, cfg, mcfg, nil, nil, c, defaultFlushDeadline, newPool(), newHighestTimestampMetric(), nil, false, false)
+	m := NewQueueManager(metrics, nil, nil, nil, dir, samplesIn, cfg, mcfg, labels.EmptyLabels(), nil, c, defaultFlushDeadline, newPool(), newHighestTimestampMetric(), nil, false, false)
 
 	// Need to start the queue manager so the proper metrics are initialized.
 	// However we can stop it right away since we don't need to do any actual
@@ -1059,7 +1044,7 @@ func TestCalculateDesiredShardsDetail(t *testing.T) {
 
 	metrics := newQueueManagerMetrics(nil, "", "")
 	samplesIn := newEWMARate(ewmaWeight, shardUpdateDuration)
-	m := NewQueueManager(metrics, nil, nil, nil, dir, samplesIn, cfg, mcfg, nil, nil, c, defaultFlushDeadline, newPool(), newHighestTimestampMetric(), nil, false, false)
+	m := NewQueueManager(metrics, nil, nil, nil, dir, samplesIn, cfg, mcfg, labels.EmptyLabels(), nil, c, defaultFlushDeadline, newPool(), newHighestTimestampMetric(), nil, false, false)
 
 	for _, tc := range []struct {
 		name            string