Examples

roles:
    - { role: etckeeper,                    tags: ['system', 'etckeeper']}

To avoid etckeeper autocommits (daily or before package manager runs) set avoid_autocommits to true:

roles:
    - { role: etckeeper,                    tags: ['system', 'etckeeper'],
        etckeeper_avoid_autocommits: true }

To send commit emails to root:

roles:
    - { role: etckeeper,                    tags: ['system', 'etckeeper'],
        etckeeper_avoid_autocommits: true,
        etckeeper_mailto: root }

The role sets "root root@the.host.name" as the default user/email in etckeeper's git config. To change that set these options:

roles:
    - { role: etckeeper,                    tags: ['system', 'etckeeper'],
        etckeeper_user_name: "Charlie Root",
        etckeeper_user_email: "charlie@corp.com" }