feat: add hook scripts to pod

Signed-off-by: WrenIX <dev.github@wrenix.eu>

Author: wrenix

charts/nextcloud/Chart.yaml

@@ -1,6 +1,6 @@
 apiVersion: v2
 name: nextcloud
-version: 4.5.17
+version: 4.6.0
 appVersion: 28.0.2
 description: A file sharing server that puts the control and security of your own data back into your hands.
 keywords:

charts/nextcloud/templates/deployment.yaml

@@ -43,6 +43,7 @@ spec:
         {{- if .Values.nginx.enabled }}
         nginx-config-hash: {{ print .Values.nginx.config.default "-" .Values.nginx.config.custom | sha256sum }}
         {{- end }}
+        hooks-hash: {{ toYaml .Values.nextcloud.hooks | sha256sum }}
         {{- with .Values.podAnnotations }}
         {{- toYaml . | nindent 8 }}
         {{- end }}
@@ -136,6 +137,14 @@ spec:
           {{- end }}
           volumeMounts:
             {{- include "nextcloud.volumeMounts" . | trim | nindent 12 }}
+            {{- range $hook, $config := .Values.nextcloud.hooks }}
+            {{- if $config.shell }}
+            - name: nextcloud-hooks
+              mountPath: /docker-entrypoint-hooks.d/before-starting/{{ $hook }}.sh
+              subPath: {{ $hook }}.sh
+              readOnly: true
+            {{- end }}
+            {{- end }}
         {{- if .Values.nginx.enabled }}
         - name: {{ .Chart.Name }}-nginx
           image: "{{ .Values.nginx.image.repository }}:{{ .Values.nginx.image.tag }}"
@@ -348,6 +357,18 @@ spec:
           configMap:
             name: {{ template "nextcloud.fullname" . }}-nginxconfig
         {{- end }}
+        {{- if or
+            (get .Values.nextcloud.hooks "pre-installation").shell
+            (get .Values.nextcloud.hooks "post-installation").shell
+            (get .Values.nextcloud.hooks "pre-upgrade").shell
+            (get .Values.nextcloud.hooks "post-upgrade").shell
+            (get .Values.nextcloud.hooks "before-starting").shell
+        }}
+        - name: nextcloud-hooks
+          secret:
+            secretName: {{ template "nextcloud.fullname" . }}-hooks
+            defaultMode: 0o755
+        {{- end }}
         {{- with .Values.nextcloud.extraVolumes }}
         {{- toYaml . | nindent 8 }}
         {{- end }}

charts/nextcloud/templates/secrets-hooks.yaml

@@ -0,0 +1,25 @@
+{{- if or
+  (get .Values.nextcloud.hooks "pre-installation").shell
+  (get .Values.nextcloud.hooks "post-installation").shell
+  (get .Values.nextcloud.hooks "pre-upgrade").shell
+  (get .Values.nextcloud.hooks "post-upgrade").shell
+  (get .Values.nextcloud.hooks "before-starting").shell
+}}
+---
+apiVersion: v1
+kind: Secret
+type: Opaque
+metadata:
+  name: {{ template "nextcloud.fullname" . }}-hooks
+  labels:
+    app.kubernetes.io/name: {{ include "nextcloud.name" . }}
+    helm.sh/chart: {{ include "nextcloud.chart" . }}
+    app.kubernetes.io/instance: {{ .Release.Name }}
+    app.kubernetes.io/managed-by: {{ .Release.Service }}
+data:
+  {{- range $hook, $config := .Values.nextcloud.hooks }}
+  {{- if $config.shell }}
+  {{ $hook }}.sh: {{ $config.shell | b64enc }}
+  {{- end }}
+  {{- end }}
+{{- end }}

charts/nextcloud/values.yaml

@@ -146,7 +146,18 @@ nextcloud:
   #          )
   #        )
   #      );
-
+  # Hooks for auto configuration
+  # Here you could write small scripts which are placed in `/docker-entrypoint-hooks.d/<hook-name>/<hook-name>.sh`
+  # ref: https://github.com/nextcloud/docker?tab=readme-ov-file#auto-configuration-via-hook-folders
+  hooks:
+    pre-installation:
+      shell:
+    post-installation:
+      shell:
+    pre-upgrade:
+      shell:
+    before-starting:
+      shell:
   ## Strategy used to replace old pods
   ## IMPORTANT: use with care, it is suggested to leave as that for upgrade purposes
   ## ref: https://kubernetes.io/docs/concepts/workloads/controllers/deployment/#strategy