New release process using docker, circleci and a centralized

building tool

.dockerignore

@@ -0,0 +1,4 @@
+.build/
+.tarballs/
+
+!.build/linux-amd64

.gitignore

@@ -21,7 +21,8 @@ _testmain.go
 
 *.exe
 dependencies-stamp
-node_exporter
-.build
-.deps
-*.tar.gz
+/node_exporter
+/.build
+/.deps
+/.release
+/.tarballs

.promu.yml

@@ -0,0 +1,27 @@
+go: 1.5.4
+repository:
+    path: github.com/prometheus/node_exporter
+build:
+    ldflags: |
+        -X main.Version={{.Version}}
+        -X {{repoPath}}/collector.Version={{.Version}}
+        -X {{repoPath}}/collector.Revision={{.Revision}}
+        -X {{repoPath}}/collector.Branch={{.Branch}}
+tarball:
+    files:
+        - LICENSE
+        - NOTICE
+crossbuild:
+    platforms:
+        - linux/amd64
+        - linux/386
+        - darwin/amd64
+        - darwin/386
+        - windows/amd64
+        - windows/386
+        - netbsd/amd64
+        - netbsd/386
+        - linux/arm
+        - linux/arm64
+        - netbsd/arm
+        - linux/ppc64le

.travis.yml

@@ -2,15 +2,9 @@ sudo: false
 
 language: go
 go:
-- 1.5.3
+- 1.5
 - tip
 
-env:
-- GO15VENDOREXPERIMENT=1
-
 script:
-- "! gofmt -l $(find . -path ./vendor -prune -o -name '*.go' -print) | read nothing"
-- go vet
-- go test -v $(go list ./... | grep -v /vendor/)
-- go build
+- make
 - ./end-to-end-test.sh

Dockerfile

@@ -1,4 +1,7 @@
-FROM        sdurrheimer/alpine-golang-make-onbuild
+FROM        quay.io/prometheus/busybox:glibc
 MAINTAINER  The Prometheus Authors <prometheus-developers@googlegroups.com>
 
+COPY node_exporter /bin/node_exporter
+
 EXPOSE      9100
+ENTRYPOINT  [ "/bin/node_exporter" ]

Makefile

@@ -11,18 +11,50 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-VERSION  := 0.12.0rc3
-TARGET   := node_exporter
+GO    := GO15VENDOREXPERIMENT=1 go
+PROMU := $(GOPATH)/bin/promu
+pkgs   = $(shell $(GO) list ./... | grep -v /vendor/)
 
-REVISION := $(shell git rev-parse --short HEAD 2> /dev/null || echo 'unknown')
-BRANCH   := $(shell git rev-parse --abbrev-ref HEAD 2> /dev/null || echo 'unknown')
+PREFIX                  ?= $(shell pwd)
+BIN_DIR                 ?= $(shell pwd)
+DOCKER_IMAGE_NAME       ?= node-exporter
+DOCKER_IMAGE_TAG        ?= $(subst /,-,$(shell git rev-parse --abbrev-ref HEAD))
 
-REPO_PATH := "github.com/prometheus/node_exporter"
-LDFLAGS   := -X main.Version=$(VERSION)
-LDFLAGS   += -X $(REPO_PATH)/collector.Version=$(VERSION)
-LDFLAGS   += -X $(REPO_PATH)/collector.Revision=$(REVISION)
-LDFLAGS   += -X $(REPO_PATH)/collector.Branch=$(BRANCH)
 
-GOFLAGS   := -ldflags "$(LDFLAGS)"
+all: format build test
 
-include Makefile.COMMON
+style:
+	@echo ">> checking code style"
+	@! gofmt -d $(shell find . -path ./vendor -prune -o -name '*.go' -print) | grep '^'
+
+test:
+	@echo ">> running tests"
+	@$(GO) test -short $(pkgs)
+
+format:
+	@echo ">> formatting code"
+	@$(GO) fmt $(pkgs)
+
+vet:
+	@echo ">> vetting code"
+	@$(GO) vet $(pkgs)
+
+build: promu
+	@echo ">> building binaries"
+	@$(PROMU) build --prefix $(PREFIX)
+
+tarball: promu
+	@echo ">> building release tarball"
+	@$(PROMU) tarball --prefix $(PREFIX) $(BIN_DIR)
+
+docker:
+	@echo ">> building docker image"
+	@docker build -t "$(DOCKER_IMAGE_NAME):$(DOCKER_IMAGE_TAG)" .
+
+promu:
+	@GOOS=$(shell uname -s | tr A-Z a-z) \
+		GOARCH=$(subst x86_64,amd64,$(patsubst i%86,386,$(shell uname -m))) \
+		$(GO) get -u github.com/prometheus/promu
+
+
+.PHONY: all style format build test vet tarball docker promu

README.md

@@ -1,6 +1,9 @@
-# Node exporter
+# Node exporter [![Build Status](https://travis-ci.org/prometheus/node_exporter.svg)][travis]
 
-[![Build Status](https://travis-ci.org/prometheus/node_exporter.svg)](https://travis-ci.org/prometheus/node_exporter)
+[![CircleCI](https://circleci.com/gh/prometheus/node_exporter/tree/master.svg?style=shield)][circleci]
+[![Image Size & Layers](https://imagelayers.io/badge/prom/node-exporter:master.svg)][imagelayers]
+[![Docker Stars](https://img.shields.io/docker/stars/prom/node-exporter.svg)][hub]
+[![Docker Pulls](https://img.shields.io/docker/pulls/prom/node-exporter.svg)][hub]
 
 Prometheus exporter for machine metrics, written in Go with pluggable metric
 collectors.
@@ -99,3 +102,9 @@ docker pull prom/node-exporter
 
 docker run -d -p 9100:9100 --net="host" prom/node-exporter
 ```
+
+
+[travis]: https://travis-ci.org/prometheus/node_exporter
+[hub]: https://hub.docker.com/r/prom/node-exporter/
+[circleci]: https://circleci.com/gh/prometheus/node_exporter
+[imagelayers]: https://imagelayers.io/?images=prom/node-exporter:master

VERSION

@@ -0,0 +1 @@
+0.12.0rc3

circle.yml

@@ -0,0 +1,61 @@
+machine:
+  environment:
+    DOCKER_IMAGE_NAME: prom/node-exporter
+    QUAY_IMAGE_NAME: quay.io/prometheus/node-exporter
+    DOCKER_TEST_IMAGE_NAME: quay.io/prometheus/golang-builder:1.5.4-main
+    REPO_PATH: github.com/prometheus/node_exporter
+  pre:
+    - sudo curl -L -o /usr/bin/docker 'https://s3-external-1.amazonaws.com/circle-downloads/docker-1.9.1-circleci'
+    - sudo chmod 0755 /usr/bin/docker
+    - sudo curl -L 'https://github.com/aktau/github-release/releases/download/v0.6.2/linux-amd64-github-release.tar.bz2' | tar xvjf - --strip-components 3 -C $HOME/bin
+  services:
+    - docker
+
+dependencies:
+  pre:
+    - go get -u github.com/prometheus/promu
+    - docker info
+  override:
+    - promu crossbuild
+    - ln -s .build/linux-amd64/node_exporter node_exporter
+    - |
+      if [ -n "$CIRCLE_TAG" ]; then
+        make docker DOCKER_IMAGE_NAME=$DOCKER_IMAGE_NAME DOCKER_IMAGE_TAG=$CIRCLE_TAG
+        make docker DOCKER_IMAGE_NAME=$QUAY_IMAGE_NAME DOCKER_IMAGE_TAG=$CIRCLE_TAG
+      else
+        make docker DOCKER_IMAGE_NAME=$DOCKER_IMAGE_NAME
+        make docker DOCKER_IMAGE_NAME=$QUAY_IMAGE_NAME
+      fi
+  post:
+    - mkdir $CIRCLE_ARTIFACTS/binaries/ && cp -a .build/* $CIRCLE_ARTIFACTS/binaries/
+    - docker images
+
+test:
+  override:
+    - docker run --rm -t -v "$(pwd):/app" "${DOCKER_TEST_IMAGE_NAME}" -i "${REPO_PATH}" -T
+
+deployment:
+  hub_branch:
+    branch: master
+    owner: prometheus
+    commands:
+      - docker login -e $DOCKER_EMAIL -u $DOCKER_LOGIN -p $DOCKER_PASSWORD
+      - docker login -e $QUAY_EMAIL -u $QUAY_LOGIN -p $QUAY_PASSWORD quay.io
+      - docker push $DOCKER_IMAGE_NAME
+      - docker push $QUAY_IMAGE_NAME
+  hub_tag:
+    tag: /^[0-9]+(\.[0-9]+){2}(-.+|[^-.]*)$/
+    owner: prometheus
+    commands:
+      - promu crossbuild tarballs
+      - promu release .tarballs
+      - mkdir $CIRCLE_ARTIFACTS/releases/ && cp -a .tarballs/* $CIRCLE_ARTIFACTS/releases/
+      - docker login -e $DOCKER_EMAIL -u $DOCKER_LOGIN -p $DOCKER_PASSWORD
+      - docker login -e $QUAY_EMAIL -u $QUAY_LOGIN -p $QUAY_PASSWORD quay.io
+      - |
+        if [[ "$CIRCLE_TAG" =~ ^[0-9]+(\.[0-9]+){2}$ ]]; then
+            docker tag "$DOCKER_IMAGE_NAME:$CIRCLE_TAG" "$DOCKER_IMAGE_NAME:latest"
+            docker tag "$QUAY_IMAGE_NAME:$CIRCLE_TAG" "$QUAY_IMAGE_NAME:latest"
+        fi
+      - docker push $DOCKER_IMAGE_NAME
+      - docker push $QUAY_IMAGE_NAME