steps:
  - name: backup-on-push
    image: alpine
    volumes:
      - /obsidian:/obsidian
      - /backup:/backup
    commands:
      - tar czf /backup/obsidian-$(date +%F).tar.gz /obsidian
    when:
      event: [ push, manual ]

  - name: backup-on-cron
    image: alpine
    volumes:
      - /obsidian:/obsidian
      - /backup:/backup
    commands:
      - tar czf /backup/obsidian-$(date +%F).tar.gz /obsidian
    when:
      event: [ cron ]
      cron: nightly-backup