Use helper for secret checksum calculation

Author: Speissi

charts/pgcat/templates/_helpers.tpl

@@ -60,3 +60,13 @@ Create the name of the service account to use
 {{- default "default" .Values.serviceAccount.name }}
 {{- end }}
 {{- end }}
+
+{{/*
+Generate a checksum of the specified template file.
+*/}}
+{{- define "pgcat.checksum" -}}
+{{- $files := .Files -}}
+{{- $secretPath := (print $.Template.BasePath "/secret.yaml") -}}
+{{- $secret := $files.Get $secretPath -}}
+{{- sha256sum $secret -}}
+{{- end }}

charts/pgcat/templates/deployment.yaml

@@ -12,7 +12,7 @@ spec:
   template:
     metadata:
       annotations:
-        checksum/secret: {{ include (print $.Template.BasePath "/secret.yaml") . | sha256sum }}
+        checksum/secret: {{ include "pgcat.checksum" . }}
       {{- with .Values.podAnnotations }}
         {{- toYaml . | nindent 8 }}
       {{- end }}