enix#84 Add labels for cluster

Author: florianspk

charts/cnpg-cluster/Chart.yaml

@@ -2,5 +2,5 @@ apiVersion: v2
 name: cnpg-cluster
 description: A Helm chart to create cloudnative-pg.io clusters
 type: application
-version: 2.0.1
+version: 2.0.2
 appVersion: "14.5-6"

charts/cnpg-cluster/templates/_helpers.tpl

@@ -35,11 +35,15 @@ Common labels
 */}}
 {{- define "cnpg-cluster.labels" -}}
 helm.sh/chart: {{ include "cnpg-cluster.chart" . }}
+{{- if and (hasKey .Values "labels") (.Values.labels)  }}
+{{ toYaml .Values.labels }}
+{{- else }}
 {{ include "cnpg-cluster.selectorLabels" . }}
 {{- if .Chart.AppVersion }}
 app.kubernetes.io/version: {{ .Chart.AppVersion | quote }}
 {{- end }}
 app.kubernetes.io/managed-by: {{ .Release.Service }}
+{{- end -}}
 {{- end }}
 
 {{/*

charts/cnpg-cluster/values.yaml

@@ -28,6 +28,16 @@ nameOverride: ""
 # --  String to fully override cnpg-cluster.fullname template with a string
 fullnameOverride: ""
 
+# -- Labels for the cluster
+# This field allows adding extra labels to cluster.
+# Note: The following labels cannot be set through this field, as they are reserved:
+# - helm.sh/chart
+# Attempting to use these labels will be cause a conflict.
+labels:
+  # app.kubernetes.io/name: monkey-cluster
+  # app.kubernetes.io/instance: monkey-moon
+  # env: production
+
 # -- CPU/Memory resource requests/limits
 resources: {}
   # We usually recommend not to specify default resources and to leave this as a conscious