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Merge pull request #1939 from prometheus/rootmsg

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Add a warning when node exporter runs as root
This commit is contained in:
Ben Kochie 2021-01-23 18:22:07 +01:00 committed by GitHub
parent 87993cdd7e dddae68cc7
commit bf4f48a4a7
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GPG key ID: 4AEE18F83AFDEB23
3 changed files with 6 additions and 2 deletions
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2
.promu-cgo.yml
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@ -8,7 +8,7 @@ repository:
build: build:
binaries: binaries:
- name: node_exporter - name: node_exporter
flags: -a -tags 'netgo static_build' flags: -a -tags 'netgo osusergo static_build'
ldflags: | ldflags: |
-X github.com/prometheus/common/version.Version={{.Version}} -X github.com/prometheus/common/version.Version={{.Version}}
-X github.com/prometheus/common/version.Revision={{.Revision}} -X github.com/prometheus/common/version.Revision={{.Revision}}

2
.promu.yml
View file

@ -7,7 +7,7 @@ repository:
build: build:
binaries: binaries:
- name: node_exporter - name: node_exporter
flags: -a -tags 'netgo static_build' flags: -a -tags 'netgo osusergo static_build'
ldflags: | ldflags: |
-X github.com/prometheus/common/version.Version={{.Version}} -X github.com/prometheus/common/version.Version={{.Version}}
-X github.com/prometheus/common/version.Revision={{.Revision}} -X github.com/prometheus/common/version.Revision={{.Revision}}

4
node_exporter.go
View file

@ -18,6 +18,7 @@ import (
"net/http" "net/http"
_ "net/http/pprof" _ "net/http/pprof"
"os" "os"
"os/user"
"sort" "sort"
"github.com/prometheus/common/promlog" "github.com/prometheus/common/promlog"
@ -176,6 +177,9 @@ func main() {
} }
level.Info(logger).Log("msg", "Starting node_exporter", "version", version.Info()) level.Info(logger).Log("msg", "Starting node_exporter", "version", version.Info())
level.Info(logger).Log("msg", "Build context", "build_context", version.BuildContext()) level.Info(logger).Log("msg", "Build context", "build_context", version.BuildContext())
if user, err := user.Current(); err == nil && user.Uid == "0" {
level.Warn(logger).Log("msg", "Node Exporter is running as root user. This exporter is designed to run as unpriviledged user, root is not required.")
}
http.Handle(*metricsPath, newHandler(!*disableExporterMetrics, *maxRequests, logger)) http.Handle(*metricsPath, newHandler(!*disableExporterMetrics, *maxRequests, logger))
http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) { http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {