Simplify service account name in helm chart (zalando#612)

* Simplify service account name in helm chart (zalando#610)

charts/postgres-operator/templates/_helpers.tpl

@@ -24,6 +24,13 @@ If release name contains chart name it will be used as a full name.
 {{- end -}}
 {{- end -}}
 
+{{/*
+Create a service account name.
+*/}}
+{{- define "postgres-operator.serviceAccountName" -}}
+{{ default (include "postgres-operator.fullname" .) .Values.serviceAccount.name }}
+{{- end -}}
+
 {{/*
 Create chart name and version as used by the chart label.
 */}}

charts/postgres-operator/templates/clusterrole.yaml

@@ -2,11 +2,7 @@
 apiVersion: rbac.authorization.k8s.io/v1beta1
 kind: ClusterRole
 metadata:
-  name: {{- if eq .Values.serviceAccount.name "" }}
-            {{ template "postgres-operator.fullname" . }}
-        {{- else }}
-            {{ .Values.serviceAccount.name }}
-        {{- end }}
+  name: {{ include "postgres-operator.serviceAccountName" . }}
   labels:
     app.kubernetes.io/name: {{ template "postgres-operator.name" . }}
     helm.sh/chart: {{ template "postgres-operator.chart" . }}
@@ -145,11 +141,7 @@ rules:
   verbs:
   - bind
   resourceNames:
-  - {{- if eq .Values.serviceAccount.name "" }}
-      {{ template "postgres-operator.fullname" . }}
-    {{- else }}
-      {{ .Values.serviceAccount.name }}
-    {{- end }}
+  - {{ include "postgres-operator.serviceAccountName" . }}
 - apiGroups:
   - batch
   resources:

charts/postgres-operator/templates/clusterrolebinding.yaml

@@ -2,11 +2,7 @@
 apiVersion: rbac.authorization.k8s.io/v1
 kind: ClusterRoleBinding
 metadata:
-  name: {{- if eq .Values.serviceAccount.name "" }}
-            {{ template "postgres-operator.fullname" . }}
-        {{- else }}
-            {{ .Values.serviceAccount.name }}
-        {{- end }}
+  name: {{ include "postgres-operator.serviceAccountName" . }}
   labels:
     app.kubernetes.io/name: {{ template "postgres-operator.name" . }}
     helm.sh/chart: {{ template "postgres-operator.chart" . }}
@@ -15,19 +11,11 @@ metadata:
 roleRef:
   apiGroup: rbac.authorization.k8s.io
   kind: ClusterRole
-  name: {{- if eq .Values.serviceAccount.name "" }}
-            {{ template "postgres-operator.fullname" . }}
-        {{- else }}
-            {{ .Values.serviceAccount.name }}
-        {{- end }}
+  name: {{ include "postgres-operator.serviceAccountName" . }}
 subjects:
 - kind: ServiceAccount
 # note: the cluster role binding needs to be defined
 # for every namespace the operator service account lives in.
-  name: {{- if eq .Values.serviceAccount.name "" }}
-            {{ template "postgres-operator.fullname" . }}
-        {{- else }}
-            {{ .Values.serviceAccount.name }}
-        {{- end }}
+  name: {{ include "postgres-operator.serviceAccountName" . }}
   namespace: {{ .Release.Namespace }}
 {{ end }}

charts/postgres-operator/templates/configmap.yaml

@@ -9,11 +9,7 @@ metadata:
     app.kubernetes.io/managed-by: {{ .Release.Service }}
     app.kubernetes.io/instance: {{ .Release.Name }}
 data:
-  pod_service_account_name: {{- if eq .Values.serviceAccount.name "" }}
-                                {{ template "postgres-operator.fullname" . }}
-                            {{- else }}
-                                {{ .Values.serviceAccount.name }}
-                            {{- end }}
+  pod_service_account_name: {{ include "postgres-operator.serviceAccountName" . }}
 {{ toYaml .Values.configGeneral | indent 2 }}
 {{ toYaml .Values.configUsers | indent 2 }}
 {{ toYaml .Values.configKubernetes | indent 2 }}

charts/postgres-operator/templates/deployment.yaml

@@ -31,11 +31,7 @@ spec:
 {{ toYaml .Values.podLabels | indent 8 }}
       {{- end }}
     spec:
-      serviceAccountName: {{- if eq .Values.serviceAccount.name "" }}
-                            {{ template "postgres-operator.fullname" . }}
-                          {{- else }}
-                            {{ .Values.serviceAccount.name }}
-                          {{- end }}
+      serviceAccountName: {{ include "postgres-operator.serviceAccountName" . }}
       containers:
       - name: {{ .Chart.Name }}
         image: "{{ .Values.image.registry }}/{{ .Values.image.repository }}:{{ .Values.image.tag }}"

charts/postgres-operator/templates/serviceaccount.yaml

@@ -2,11 +2,7 @@
 apiVersion: v1
 kind: ServiceAccount
 metadata:
-  name: {{- if eq .Values.serviceAccount.name "" }}
-            {{ template "postgres-operator.fullname" . }}
-        {{- else }}
-            {{ .Values.serviceAccount.name }}
-        {{- end }}
+  name: {{ include "postgres-operator.serviceAccountName" . }}
   labels:
     app.kubernetes.io/name: {{ template "postgres-operator.name" . }}
     helm.sh/chart: {{ template "postgres-operator.chart" . }}

charts/postgres-operator/values-crd.yaml

@@ -245,7 +245,7 @@ serviceAccount:
   # If not set and create is true, a name is generated using the fullname template
   # When relying solely on the OperatorConfiguration CRD, set this value to "operator"
   # Otherwise, the operator tries to use the "default" service account which is forbidden
-  name: "operator"
+  name: operator
 
 priorityClassName: ""
 

charts/postgres-operator/values.yaml

@@ -226,7 +226,7 @@ serviceAccount:
   # If not set and create is true, a name is generated using the fullname template
   # When relying solely on the OperatorConfiguration CRD, set this value to "operator"
   # Otherwise, the operator tries to use the "default" service account which is forbidden
-  name: ""
+  name:
 
 priorityClassName: ""