nextcloud: add setup script and migrate format

basic/overrides/stackspin-nextcloud-override.yaml

@@ -44,21 +44,21 @@ data:
                   15 => 'OC\\Preview\\AVI',
                 )
             );
-            #extraVolumes:
-            #  - name: nextcloud-onlyoffice-config
-            #    configMap:
-            #      name: nextcloud-onlyoffice-config-and-scripts
-            #extraVolumeMounts:
-            #  - name: nextcloud-onlyoffice-config
-            #    mountPath: /var/local
+            extraVolumes:
+              - name: nextcloud-poststart
+                configMap:
+                  name: nextcloud-poststart-config
+            extraVolumeMounts:
+              - name: nextcloud-poststart
+                mountPath: /opt
 
       lifecycle:
         postStartCommand:
           - '/bin/bash'
-          - '-c'
-          - 'apt update && apt install --yes ffmpeg imagemagick ghostscript libreoffice libreoffice-l10n-de libreoffice-help-de'
-            #- 'echo hiho && /bin/bash /var/local/setup-apps.sh'
+          - '/opt/setup.sh'
+            # && /bin/bash /var/local/setup-apps.sh'
     apps:
+      custom:
         # Basics
         - name: bruteforcesettings
           enabled: false
@@ -145,6 +145,21 @@ data:
           #  enabled: true
           # TODO install via CLI
         # TODO disabling user status, files_comments, support, event_update_notification (Notifications for calendar event updates), bruteforcesettings
-      # need to disable tasks soon
+        # disable tasks soon
         # configure firstrunwizard
         # preconfigured: share by mail - https://apps.nextcloud.com/apps/socialsharing_email
+---
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  namespace: stackspin-apps
+  name: stackspin-nextcloud-setup
+data:
+  setup.sh: |
+    #!/bin/bash
+    set -e
+    exec > /var/www/tmp/setup-$(date +"%s").log
+    exec 2> /var/www/tmp/setup-$(date +"%s")_error.log
+
+    apt update
+    apt install --yes ffmpeg imagemagick ghostscript libreoffice libreoffice-l10n-de libreoffice-help-de