add new metric restic_build_info

Author: antondollmaier

monitor/prom/metrics.go

@@ -26,6 +26,7 @@ type Metrics struct {
 	labels   prometheus.Labels
 	registry *prometheus.Registry
 	info     *prometheus.GaugeVec
+	resticInfo *prometheus.GaugeVec
 	backup   BackupMetrics
 }
 
@@ -47,14 +48,22 @@ func NewMetrics(profile, group, version string, resticversion string, configLabe
 		Namespace: namespace,
 		Name:      "build_info",
 		Help:      "resticprofile build information.",
-	}, append(keys, goVersionLabel, versionLabel, resticVersionLabel))
+	}, append(keys, goVersionLabel, versionLabel))
 	// send the information about the build right away
-	p.info.With(mergeLabels(cloneLabels(labels), map[string]string{goVersionLabel: runtime.Version(), versionLabel: version, resticVersionLabel: resticversion})).Set(1)
+	p.info.With(mergeLabels(cloneLabels(labels), map[string]string{goVersionLabel: runtime.Version(), versionLabel: version})).Set(1)
+
+	p.resticInfo = prometheus.NewGaugeVec(prometheus.GaugeOpts{
+		Name:      "restic_build_info",
+		Help:      "restic build information.",
+	}, append(keys, versionLabel))
+	// send the information about the build right away
+	p.resticInfo.With(mergeLabels(cloneLabels(labels), map[string]string{versionLabel: resticversion})).Set(1)
 
 	p.backup = newBackupMetrics(keys)
 
 	registry.MustRegister(
 		p.info,
+		p.resticInfo,
 		p.backup.duration,
 		p.backup.filesNew,
 		p.backup.filesChanged,