Plugins: Add metrics for fs + cloud provisioning info (#111030)

* add new metrics for plugin fs + cloud provisioning

* fix test

* update label

pkg/infra/metrics/metrics.go

@@ -202,6 +202,10 @@ var (
 
 	grafanaPluginTargetInfoDesc *prometheus.GaugeVec
 
+	grafanaPluginFileSystemInfoDesc *prometheus.GaugeVec
+
+	grafanaPluginProvisioningInfoDesc *prometheus.GaugeVec
+
 	// StatsTotalLibraryPanels is a metric of total number of library panels stored in Grafana.
 	StatsTotalLibraryPanels prometheus.Gauge
 
@@ -578,6 +582,18 @@ func init() {
 		Namespace: ExporterName,
 	}, []string{"plugin_id", "target"})
 
+	grafanaPluginFileSystemInfoDesc = prometheus.NewGaugeVec(prometheus.GaugeOpts{
+		Name:      "plugin_filesystem_info",
+		Help:      "A metric with a constant '1' value labeled by pluginId and filesystem type",
+		Namespace: ExporterName,
+	}, []string{"plugin_id", "filesystem_type"})
+
+	grafanaPluginProvisioningInfoDesc = prometheus.NewGaugeVec(prometheus.GaugeOpts{
+		Name:      "plugin_provisioning_info",
+		Help:      "A metric with a constant '1' value labeled by pluginId and cloud provisioning method",
+		Namespace: ExporterName,
+	}, []string{"plugin_id", "provisioning_method"})
+
 	StatsTotalDashboardVersions = prometheus.NewGauge(prometheus.GaugeOpts{
 		Name:      "stat_totals_dashboard_versions",
 		Help:      "total amount of dashboard versions in the database",
@@ -722,6 +738,14 @@ func SetPluginTargetInformation(pluginID, target string) {
 	grafanaPluginTargetInfoDesc.WithLabelValues(pluginID, target).Set(1)
 }
 
+func SetPluginFSInformation(pluginID, fsType string) {
+	grafanaPluginFileSystemInfoDesc.WithLabelValues(pluginID, fsType).Set(1)
+}
+
+func SetPluginProvisioningInformation(pluginID, provisioningMethod string) {
+	grafanaPluginProvisioningInfoDesc.WithLabelValues(pluginID, provisioningMethod).Set(1)
+}
+
 func initMetricVars(reg prometheus.Registerer) {
 	reg.MustRegister(
 		MInstanceStart,
@@ -777,6 +801,8 @@ func initMetricVars(reg prometheus.Registerer) {
 		StatsTotalDataSources,
 		grafanaPluginBuildInfoDesc,
 		grafanaPluginTargetInfoDesc,
+		grafanaPluginFileSystemInfoDesc,
+		grafanaPluginProvisioningInfoDesc,
 		StatsTotalDashboardVersions,
 		StatsTotalAnnotations,
 		StatsTotalAlertRules,