change container to use alpine instead of curl

Nextcloud/nextcloud_backup_contact.cronjob.yaml

@@ -0,0 +1,55 @@
+apiVersion: batch/v1
+kind: CronJob
+metadata:
+  name: nextcloud-contact-backup
+  namespace: nextcloud
+spec:
+  schedule: "0 0 * * *"
+  jobTemplate:
+    spec:
+      ttlSecondsAfterFinished: 100
+      template:
+        spec:
+          containers:
+          - name: contact-backup
+            image: alpine
+            env:
+            - name: PI_USER_USERNAME
+              valueFrom:
+                secretKeyRef:
+                  name: nextcloud-credentials
+                  key: PI_USER_USERNAME
+            - name: PI_USER_PASSWORD
+              valueFrom:
+                secretKeyRef:
+                  name: nextcloud-credentials
+                  key: PI_USER_PASSWORD
+            command: ["/bin/sh","/config/export_contacts.sh"]
+            volumeMounts:
+            - name: contact
+              mountPath: /backup
+            - name: scripts
+              mountPath: /config
+          volumes:
+          - name: contact
+            persistentVolumeClaim:
+              claimName: contact
+          - name: scripts
+            configMap:
+              name: nextcloud-export-scripts
+#              name: nextcloud-calendar-export-script
+              defaultMode: 0555
+          restartPolicy: Never
+---
+kind: PersistentVolumeClaim
+apiVersion: v1
+metadata:
+  name: contact
+  namespace: nextcloud
+spec:
+  storageClassName: nfs-backup-storage-intelligent
+  accessModes:
+    - ReadWriteMany
+  resources:
+    requests:
+      storage: 2Gi