helm: Enrich serviceMonitor properties

helm/oauth2-proxy/Chart.yaml

@@ -1,5 +1,5 @@
 name: oauth2-proxy
-version: 6.18.3
+version: 6.19.0
 apiVersion: v2
 appVersion: 7.5.1
 home: https://oauth2-proxy.github.io/oauth2-proxy/
@@ -35,7 +35,7 @@ kubeVersion: ">=1.9.0-0"
 annotations:
   artifacthub.io/changes: |
     - kind: added
-      description: Updated Redis and Prometheus Operator to the latest version.
+      description: Make serviceMonitor.scheme,serviceMonitor.bearerTokenFile,serviceMonitor.tlsConfig,serviceMonitor.targetLabels configurable
       links:
         - name: Github PR
-          url: https://github.com/oauth2-proxy/manifests/pull/172
+          url: https://github.com/oauth2-proxy/manifests/pull/170

helm/oauth2-proxy/README.md

@@ -207,6 +207,12 @@ Parameter | Description | Default
 `metrics.serviceMonitor.interval` | Prometheus scrape interval | `60s`
 `metrics.serviceMonitor.scrapeTimeout` | Prometheus scrape timeout | `30s`
 `metrics.serviceMonitor.labels` | Add custom labels to the ServiceMonitor resource| `{}`
+`metrics.serviceMonitor.scheme` | HTTP scheme to use for scraping. Can be used with `tlsConfig` for example if using istio mTLS.| `""`
+`metrics.serviceMonitor.tlsConfig` | TLS configuration to use when scraping the endpoint. For example if using istio mTLS.| `{}`
+`metrics.serviceMonitor.bearerTokenFile` | Path to bearer token file.| `""`
+`metrics.serviceMonitor.annotations` | Used to pass annotations that are used by the Prometheus installed in your cluster| `{}`
+`metrics.serviceMonitor.metricRelabelings` | Metric relabel configs to apply to samples before ingestion.| `[]`
+`metrics.serviceMonitor.relabelings` | Relabel configs to apply to samples before ingestion.| `[]`
 `extraObjects` | Extra K8s manifests to deploy | `[]`
 
 Specify each parameter using the `--set key=value[,key=value]` argument to `helm install`. For example,

helm/oauth2-proxy/ci/servicemonitor-values.yaml

@@ -2,3 +2,17 @@ metrics:
   enabled: true
   serviceMonitor:
     enabled: true
+    annotations:
+      key: value
+    metricRelabelings:
+    - action: keep
+      regex: 'kube_(daemonset|deployment|pod|namespace|node|statefulset).+'
+      sourceLabels: [__name__]
+
+    relabelings:
+    - sourceLabels: [__meta_kubernetes_pod_node_name]
+      separator: ;
+      regex: ^(.*)$
+      targetLabel: nodename
+      replacement: $1
+      action: replace

helm/oauth2-proxy/templates/servicemonitor.yaml

@@ -2,6 +2,10 @@
 apiVersion: monitoring.coreos.com/v1
 kind: ServiceMonitor
 metadata:
+  {{- with .Values.metrics.serviceMonitor.annotations }}
+  annotations:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
   name: {{ template "oauth2-proxy.fullname" . }}
 {{- if .Values.metrics.serviceMonitor.namespace }}
   namespace: {{ .Values.metrics.serviceMonitor.namespace }}
@@ -26,6 +30,28 @@ spec:
   endpoints:
   - port: metrics
     path: "/metrics"
-    interval: {{ .Values.metrics.serviceMonitor.interval }}
-    scrapeTimeout: {{ .Values.metrics.serviceMonitor.scrapeTimeout }}
+    {{- with .Values.metrics.serviceMonitor.interval }}
+    interval: {{ . }}
+    {{- end }}
+    {{- with .Values.metrics.serviceMonitor.scrapeTimeout }}
+    scrapeTimeout: {{ . }}
+    {{- end }}
+    {{- with .Values.metrics.serviceMonitor.scheme }}
+    scheme: {{ . }}
+    {{- end }}
+    {{- with .Values.metrics.serviceMonitor.bearerTokenFile }}
+    bearerTokenFile: {{ . }}
+    {{- end }}
+    {{- with .Values.metrics.serviceMonitor.tlsConfig }}
+    tlsConfig:
+      {{- toYaml .| nindent 4 }}
+    {{- end }}
+    {{- with .Values.metrics.serviceMonitor.metricRelabelings }}
+    metricRelabelings:
+      {{- toYaml . | nindent 4 }}
+    {{- end }}
+    {{- with .Values.metrics.serviceMonitor.relabelings }}
+    relabelings:
+      {{- toYaml . | nindent 4 }}
+    {{- end }}
 {{- end }}

helm/oauth2-proxy/values.yaml

@@ -373,6 +373,37 @@ metrics:
     # Add custom labels to the ServiceMonitor resource
     labels: {}
 
+    ## scheme: HTTP scheme to use for scraping. Can be used with `tlsConfig` for example if using istio mTLS.
+    scheme: ""
+
+    ## tlsConfig: TLS configuration to use when scraping the endpoint. For example if using istio mTLS.
+    ## Of type: https://github.com/coreos/prometheus-operator/blob/master/Documentation/api.md#tlsconfig
+    tlsConfig: {}
+
+    ## bearerTokenFile: Path to bearer token file.
+    bearerTokenFile: ""
+
+    ## Used to pass annotations that are used by the Prometheus installed in your cluster to select Service Monitors to work with
+    ## ref: https://github.com/coreos/prometheus-operator/blob/master/Documentation/api.md#prometheusspec
+    annotations: {}
+
+    ## Metric relabel configs to apply to samples before ingestion.
+    ## [Metric Relabeling](https://prometheus.io/docs/prometheus/latest/configuration/configuration/#metric_relabel_configs)
+    metricRelabelings: []
+    # - action: keep
+    #   regex: 'kube_(daemonset|deployment|pod|namespace|node|statefulset).+'
+    #   sourceLabels: [__name__]
+
+    ## Relabel configs to apply to samples before ingestion.
+    ## [Relabeling](https://prometheus.io/docs/prometheus/latest/configuration/configuration/#relabel_config)
+    relabelings: []
+    # - sourceLabels: [__meta_kubernetes_pod_node_name]
+    #   separator: ;
+    #   regex: ^(.*)$
+    #   targetLabel: nodename
+    #   replacement: $1
+    #   action: replace
+
 # Extra K8s manifests to deploy
 extraObjects: []
   # - apiVersion: secrets-store.csi.x-k8s.io/v1