ansible-role-nextcloud/tasks/backup.yaml

---
- name: backup directory
  file:
    path: "{{nextcloud_backup_directory}}/{{_nextcloud_actual_version}}"
    state: directory

- name: backup old nextcloud directory
  command: mv
    "{{nextcloud_directory}}/"
    "{{nextcloud_backup_directory}}/{{_nextcloud_actual_version}}/nextcloud"

- name: dump mysql database
  shell: mysqldump "{{nextcloud_database_name}}"
    -h "{{nextcloud_database_host}}"
    -u "{{nextcloud_database_user}}"
    -p
    > "{{nextcloud_backup_directory}}/{{_nextcloud_actual_version}}/database.mysql"
  args:
    stdin: "{{nextcloud_database_pass}}"
  when: nextcloud_database_type == "mysql"

- name: dump postgresql database
  shell: sudo -u postgres pg_dump -O "{{nextcloud_database_name}}"
    > "{{nextcloud_backup_directory}}/{{_nextcloud_actual_version}}/database.pgsql"
  delegate_to: "{{ (nextcloud_database_host != 'localhost') | ternary(nextcloud_database_host,inventory_hostname) }}"
  when: nextcloud_database_type == "postgresql"