change chart to align with cnpg's chart

charts/postgres-cluster/templates/_helpers.tpl

@@ -0,0 +1,71 @@
+{{/*
+Expand the name of the chart.
+*/}}
+{{- define "cluster.name" -}}
+  {{- default .Chart.Name .Values.nameOverride | trunc 63 | trimSuffix "-" }}
+{{- end }}
+
+{{/*
+Create a default fully qualified app name.
+We truncate at 63 chars because some Kubernetes name fields are limited to this (by the DNS naming spec).
+If release name contains chart name it will be used as a full name.
+*/}}
+{{- define "cluster.fullname" -}}
+{{- if .Values.fullnameOverride }}
+  {{- .Values.fullnameOverride | trunc 63 | trimSuffix "-" }}
+{{- else }}
+  {{- $name := default .Chart.Name .Values.nameOverride }}
+  {{- if contains $name .Release.Name }}
+    {{- .Release.Name | trunc 63 | trimSuffix "-" }}
+  {{- else }}
+    {{- printf "%s-%s" .Release.Name $name | trunc 63 | trimSuffix "-" }}
+  {{- end }}
+{{- end }}
+{{- end }}
+
+{{/*
+Create chart name and version as used by the chart label.
+*/}}
+{{- define "cluster.chart" -}}
+  {{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" }}
+{{- end }}
+
+{{/*
+Common labels
+*/}}
+{{- define "cluster.labels" -}}
+helm.sh/chart: {{ include "cluster.chart" . }}
+{{ include "cluster.selectorLabels" . }}
+{{- if .Chart.AppVersion }}
+app.kubernetes.io/version: {{ .Chart.AppVersion | quote }}
+{{- end }}
+app.kubernetes.io/managed-by: {{ .Release.Service }}
+{{- end }}
+
+{{/*
+Selector labels
+*/}}
+{{- define "cluster.selectorLabels" -}}
+app.kubernetes.io/name: {{ include "cluster.name" . }}
+app.kubernetes.io/instance: {{ .Release.Name }}
+app.kubernetes.io/part-of: cloudnative-pg
+{{- end }}
+
+{{/*
+Generate name for object store credentials
+*/}}
+{{- define "cluster.recovery.credentials" -}}
+  {{- if .Values.recovery.endpointCredentials -}}
+    {{- .Values.recovery.endpointCredentials -}}
+  {{- else -}}
+    {{- printf "postgresql-%s-cluster-backup-secret" .Release.Name | trunc 63 | trimSuffix "-" -}}
+  {{- end }}
+{{- end -}}
+
+{{- define "cluster.backup.credentials" -}}
+  {{- if .Values.backup.endpointCredentials -}}
+    {{- .Values.backup.endpointCredentials -}}
+  {{- else -}}
+    {{- printf "postgresql-%s-cluster-backup-secret" .Release.Name | trunc 63 | trimSuffix "-" -}}
+  {{- end }}
+{{- end -}}