vps/roles/uptime-kuma/tasks/backup.yml

- name:
  become: true
  block:
    - name: Backup SQLite database
      command:
        cmd: |
          sqlite3
          "{{ volumes['uptime_kuma_datadir'] }}/kuma.db"
          ".backup {{ volumes['uptime_kuma_datadir'] }}/kuma-backup.db"

    - name: Create borg backup
      command:
        cmd: |
          borg create
          --compression=lzma
          "{{ borg_repodir }}::{{ role_name }}-{now:%Y-%m-%d_%H-%M-%S}"
          {{ volumes['uptime_kuma_datadir'] }}/kuma-backup.db
      environment:
        BORG_PASSCOMMAND: "cat {{ borg_passphrase_file }}"

    # The kuma-backup.db file is owned by root which causes
    # users['uptime_kuma'] to try to take ownership when it cannot.
    - name: Delete temporary backup file
      file:
        path: "{{ volumes['uptime_kuma_datadir'] }}/kuma-backup.db"
        state: absent

    - name: Prune borg repository
      command:
        cmd: |
          borg prune
          --glob-archives='{{ role_name }}-*'
          {{ borg_prune_options }}
          {{ borg_repodir }}
      environment:
        BORG_PASSCOMMAND: "cat {{ borg_passphrase_file }}"