alphagov/ci-puppet — pull request #239 by ajlanghorn (2014-11-26 12:10:09+00:00)
Title: Add 'ensure_older_than' param

Duplicity resources should have a `remove_older_than` param to remove
backups that are older than a pre-set value.

The value is set to 30D (30 days) to ensure that we:
- are consistent across repos, and
- are regularly taking full backups instead of relying on incrementals over
longer periods of time