Merge pull request #4 from wonderg/master

Add PodMonitor Support with Metric Relabeling

charts/node-local-dns/Chart.yaml

@@ -1,7 +1,7 @@
 ---
 apiVersion: v2
 name: node-local-dns
-version: 1.5.0
+version: 1.6.0
 appVersion: 1.22.24
 home: https://github.com/lablabs/k8s-nodelocaldns-helm
 description: NodeLocal DNS Cache helm chart

charts/node-local-dns/README.md

@@ -74,6 +74,8 @@ Latest available `node-local-dns` image can be found at [node-local-dns google c
 | imagePullSecrets | list | `[]` |  |
 | metrics.port | int | `9253` |  |
 | metrics.prometheusScrape | string | `"true"` |  |
+| podmonitor.enabled | bool | `false` | Enable or disable the creation of a PodMonitor resource |
+| podmonitor.metricRelabelings | array | `[]` | Define metric relabeling configurations for Prometheus |
 | nodeSelector | object | `{}` |  |
 | podAnnotations | object | `{}` |  |
 | podSecurityContext | object | `{}` |  |

charts/node-local-dns/templates/podmonitor.yaml

@@ -0,0 +1,25 @@
+{{- if .Values.podmonitor.enabled }}
+apiVersion: monitoring.coreos.com/v1
+kind: PodMonitor
+metadata:
+  name: {{ include "node-local-dns.fullname" . }}
+  labels:
+    {{- include "node-local-dns.labels" . | nindent 4 }}
+    {{- if .Values.podmonitor.promOperatorSelector }}
+    {{ toYaml .Values.podmonitor.promOperatorSelector | nindent 4 }}
+    {{- end }}
+  {{- with .Values.podmonitor.annotations }}
+  annotations:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+spec:
+  selector:
+    matchLabels:
+      {{- include "node-local-dns.selectorLabels" . | nindent 8 }}
+  podMetricsEndpoints:
+  - port: metrics
+    {{- if .Values.podmonitor.metricRelabelings }}
+    metricRelabelings:
+      {{- toYaml .Values.podmonitor.metricRelabelings | nindent 6 }}
+    {{- end }}
+{{- end }}

charts/node-local-dns/values.yaml

@@ -141,3 +141,7 @@ resources:
 metrics:
   prometheusScrape: "true"
   port: 9253
+
+podmonitor:
+  enabled: false
+  metricRelabelings: []