add global values support (#322)

Reviewed-on: https://gitea.com/gitea/helm-chart/pulls/322
Reviewed-by: luhahn <luhahn@noreply.gitea.io>
Reviewed-by: justusbunsi <justusbunsi@noreply.gitea.io>
Co-authored-by: cnfatal <cnfatal@noreply.gitea.io>
Co-committed-by: cnfatal <cnfatal@noreply.gitea.io>

templates/_helpers.tpl

@@ -35,10 +35,40 @@ Create chart name and version as used by the chart label.
 Create image name and tag used by the deployment.
 */}}
 {{- define "gitea.image" -}}
+{{- $registry := .Values.global.imageRegistry | default .Values.image.registry -}}
 {{- $name := .Values.image.repository -}}
 {{- $tag := .Values.image.tag | default .Chart.AppVersion -}}
 {{- $rootless := ternary "-rootless" "" (.Values.image.rootless) -}}
-{{- printf "%s:%s%s" $name $tag $rootless -}}
+{{- if $registry -}}
+  {{- printf "%s/%s:%s%s" $registry $name $tag $rootless -}}
+{{- else -}}
+  {{- printf "%s:%s%s" $name $tag $rootless -}}
+{{- end -}}
+{{- end -}}
+
+{{/*
+Docker Image Registry Secret Names evaluating values as templates
+*/}}
+{{- define "gitea.images.pullSecrets" -}}
+{{- $pullSecrets := .Values.imagePullSecrets -}}
+{{- range .Values.global.imagePullSecrets -}}
+    {{- $pullSecrets = append $pullSecrets (dict "name" .) -}}
+{{- end -}}
+{{- if (not (empty $pullSecrets)) }}
+imagePullSecrets:
+{{ toYaml $pullSecrets }}
+{{- end }}
+{{- end -}}
+
+
+{{/*
+Storage Class
+*/}}
+{{- define "gitea.persistence.storageClass" -}}
+{{- $storageClass := .Values.global.storageClass | default .Values.persistence.storageClass }}
+{{- if $storageClass }}
+storageClassName: {{ $storageClass | quote }}
+{{- end }}
 {{- end -}}
 
 {{/*

templates/gitea/statefulset.yaml

@@ -39,10 +39,7 @@ spec:
       {{- if .Values.schedulerName }}
       schedulerName: "{{ .Values.schedulerName }}"
       {{- end }}
-      {{- with .Values.imagePullSecrets }}
-      imagePullSecrets:
-        {{- toYaml . | nindent 8 }}
-      {{- end }}
+      {{- include "gitea.images.pullSecrets" . | nindent 6 }}
       securityContext:
         {{- toYaml .Values.podSecurityContext | nindent 8 }}
       initContainers:
@@ -342,9 +339,7 @@ spec:
           {{- range .Values.persistence.accessModes }}
             - {{ . | quote }}
           {{- end }}
-        {{- if .Values.persistence.storageClass }}
-        storageClassName: {{ .Values.persistence.storageClass | quote }}
-        {{- end }}
+        {{- include "gitea.persistence.storageClass" . | indent 8 }}
         resources:
           requests:
             storage: {{ .Values.persistence.size | quote }}

values.yaml

@@ -1,6 +1,14 @@
 # Default values for gitea.
 # This is a YAML-formatted file.
 # Declare variables to be passed into your templates.
+global:
+  imageRegistry: ""
+  ## E.g.
+  ## imagePullSecrets:
+  ##   - myRegistryKeySecretName
+  ##
+  imagePullSecrets: []
+  storageClass: ""
 
 replicaCount: 1