added more configuration, but tests failed.

roles/owncloud/tasks/cron.yml

@@ -0,0 +1,19 @@
+- name: Set background job mode to cron.
+  commmand: occ background:cron
+
+- name: Set the exectution of cron jobs to every 15 min.
+  ansible.builtin.cron:
+    name: "exe cron."
+    minute: "*/15"
+    user: www-data
+    job: "/var/www/owncloud/occ system:cron"
+    state: present
+
+- name: Cleanup of chunks every night at 2am.
+  ansible.builtin.cron:
+    name: "cleanup chunks."
+    minute: "0"
+    hour: "2"
+    user: www-data
+    job: "/var/www/owncloud/occ dav:cleanup-chunks"
+    state: present