Add backup Cronjob

Signed-off-by: Stephan Austermühle <au@hcsd.de>

Author: stephan2012

charts/nextcloud/Chart.yaml

@@ -1,6 +1,6 @@
 apiVersion: v2
 name: nextcloud
-version: 4.6.3
+version: 4.7.0-1
 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/_helpers.tpl

@@ -291,3 +291,23 @@ Create volume mounts for the nextcloud container as well as the cron sidecar con
   subPath: {{ $key }}
 {{- end }}
 {{- end -}}
+
+{{- define "nextcloud.backupCronJobVolumes" -}}
+{{- if and .Values.persistence.nextcloudData.enabled .Values.persistence.enabled }}
+- name: nextcloud-data
+  persistentVolumeClaim:
+    claimName: {{ if .Values.persistence.nextcloudData.existingClaim }}{{ .Values.persistence.nextcloudData.existingClaim }}{{- else }}{{ template "nextcloud.fullname" . }}-nextcloud-data{{- end }}
+{{- end }}
+{{- end -}}
+
+{{- define "nextcloud.backupCronJobVolumeMounts" -}}
+{{- if and .Values.persistence.nextcloudData.enabled .Values.persistence.enabled }}
+- name: nextcloud-data
+  mountPath: {{ .Values.nextcloud.datadir }}
+  subPath: {{ ternary "data" (printf "%s/data" .Values.persistence.nextcloudData.subPath) (empty .Values.persistence.nextcloudData.subPath) }}
+{{- else }}
+- name: nextcloud-main
+  mountPath: {{ .Values.nextcloud.datadir }}
+  subPath: {{ ternary "data" (printf "%s/data" .Values.persistence.subPath) (empty .Values.persistence.subPath) }}
+{{- end }}
+{{- end -}}

charts/nextcloud/templates/cronjobs.yaml

@@ -0,0 +1,31 @@
+{{- range .Values.nextcloud.backupCronjobs }}
+---
+apiVersion: batch/v1
+kind: CronJob
+metadata:
+  name: {{ template "nextcloud.fullname" $ }}-backup-{{ .name }}
+spec:
+  schedule: {{ .schedule }}
+  startingDeadlineSeconds: {{ .startingDeadlineSeconds }}
+  concurrencyPolicy: {{ .concurrencyPolicy }}
+  successfulJobsHistoryLimit: {{ .successfulJobsHistoryLimit }}
+  suspend: {{ .suspend }}
+  jobTemplate:
+    {{/* Add the volumes */}}
+    {{- $volumeList := concat (default list .jobTemplate.spec.template.spec.volumes) (include "nextcloud.backupCronJobVolumes" $ | fromYamlArray) -}}
+    {{- $volumes := dict "spec" (dict "template" (dict "spec" (dict "volumes" $volumeList))) -}}
+    {{- $jobTemplate := merge $volumes .jobTemplate -}}
+
+    {{/* Add the volumeMounts to every container */}}
+    {{- $containers := list -}}
+    {{- range .jobTemplate.spec.template.spec.containers -}}
+    {{-   $vm := concat (default list .volumeMounts) (include "nextcloud.backupCronJobVolumeMounts" $ | fromYamlArray) -}}
+    {{-   $this := dict "volumeMounts" $vm -}}
+    {{-   $containers = append $containers (merge $this .) -}}
+    {{- end -}}
+
+    {{- $newContainers := dict "spec" (dict "template" (dict "spec" (dict "containers" $containers))) -}}
+    {{- $jobTemplate = merge $newContainers $jobTemplate -}}
+
+    {{- $jobTemplate | toYaml | nindent 4 -}}
+{{- end }}

charts/nextcloud/values.yaml

@@ -193,15 +193,48 @@ nextcloud:
   #    - name: nextcloud-data
   #      mountPath: /run/nextcloud/data
 
+  # Nextcloud data backup Cronjobs
+  # See https://kubernetes.io/docs/concepts/workloads/controllers/cron-jobs/
+  backupCronjobs: []
+    # - name: backup
+    #   schedule: "15 * * * *"
+    #   concurrencyPolicy: Forbid
+    #   startingDeadlineSeconds: 300
+    #   successfulJobsHistoryLimit: 3
+    #   suspend: true
+    #   jobTemplate:
+    #     spec:
+    #       backoffLimit: 1
+    #       ttlSecondsAfterFinished: 300
+    #       template:
+    #         spec:
+    #           restartPolicy: OnFailure
+    #           initContainers: []
+    #           containers:
+    #             - name: restic
+    #               image: restic/restic:0.16.4
+    #               imagePullPolicy: IfNotPresent
+    #               command:
+    #                 - /bin/sh
+    #                 - -c
+    #                 - restic backup
+    #           #     volumeMounts:
+    #           #       - name: privatedir
+    #           #         mountPath: /srv/private
+    #           #         readOnly: false
+    #           # volumes:
+    #           #   - name: privatedir
+    #           #     emptyDir: {}
+
   # Extra mounts for the pods. Example shown is for connecting a legacy NFS volume
   # to NextCloud pods in Kubernetes. This can then be configured in External Storage
-  extraVolumes:
+  extraVolumes: []
   #  - name: nfs
   #    nfs:
   #      server: "10.0.0.1"
   #      path: "/nextcloud_data"
   #      readOnly: false
-  extraVolumeMounts:
+  extraVolumeMounts: []
   #  - name: nfs
   #    mountPath: "/legacy_data"