Jrf add os release

collector/paths.go

@@ -22,11 +22,16 @@ import (
 
 var (
 	// The path of the proc filesystem.
+	etcPath    = kingpin.Flag("path.etcfs", "etcfs mountpoint.").Default("/etc").String()
 	procPath   = kingpin.Flag("path.procfs", "procfs mountpoint.").Default(procfs.DefaultMountPoint).String()
 	sysPath    = kingpin.Flag("path.sysfs", "sysfs mountpoint.").Default("/sys").String()
 	rootfsPath = kingpin.Flag("path.rootfs", "rootfs mountpoint.").Default("/").String()
 )
 
+func etcFilePath(name string) string {
+	return filepath.Join(*etcPath, name)
+}
+
 func procFilePath(name string) string {
 	return filepath.Join(*procPath, name)
 }

collector/release_opensuse.go

@@ -0,0 +1,90 @@
+// Copyright 2016 The Prometheus Authors
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// +build !novmstat
+
+package collector
+
+import (
+	"bufio"
+	// 	"fmt"
+	"os"
+	// 	"regexp"
+	// 	"strconv"
+	"strings"
+
+	"github.com/prometheus/client_golang/prometheus"
+	// 	"gopkg.in/alecthomas/kingpin.v2"
+)
+
+const (
+	releaseSubsystem = "release"
+)
+
+type releaseCollector struct{}
+type release struct {
+	ID        string
+	VersionID string
+}
+
+func init() {
+	registerCollector("release", defaultEnabled, newReleaseCollector)
+}
+
+func newReleaseCollector() (Collector, error) {
+	return &releaseCollector{}, nil
+}
+
+func (c *releaseCollector) Update(ch chan<- prometheus.Metric) error {
+	release, err := getRelease()
+	if err != nil {
+		return err
+	}
+
+	ch <- prometheus.MustNewConstMetric(
+		prometheus.NewDesc(
+			prometheus.BuildFQName(namespace, releaseSubsystem, "info"),
+			"/etc/os-release information",
+			[]string{"id", "versionid"}, nil),
+		prometheus.GaugeValue,
+		1,
+		release.ID,
+		release.VersionID,
+	)
+	return nil
+}
+
+func getRelease() (release, error) {
+	release := release{
+		ID:        "",
+		VersionID: "",
+	}
+	file, err := os.Open(etcFilePath("os-release"))
+	if err != nil {
+		return release, err
+	}
+	defer file.Close()
+
+	scanner := bufio.NewScanner(file)
+	for scanner.Scan() {
+		parts := strings.Split(scanner.Text(), "=")
+		parts[1] = strings.Replace(parts[1], "\"", "", -1)
+		if "ID" == parts[0] {
+			release.ID = parts[1]
+		} else if "VERSION_ID" == parts[0] {
+			release.VersionID = parts[1]
+		}
+	}
+
+	return release, scanner.Err()
+}

end-to-end-test.sh

@@ -45,6 +45,7 @@ disabled_collectors=$(cat << COLLECTORS
   time
   timex
   uname
+  release
 COLLECTORS
 )
 cd "$(dirname $0)"