### Update the list of packages
By default, Puppet runs `apt-get update` on the first Puppet run after you include the `apt` class, and anytime `notify => Exec['apt_update']` occurs; i.e., whenever config files get updated or other relevant changes occur. If you set `update['frequency']` to 'always', the update runs on every Puppet run. You can also set `update['frequency']` to 'daily' or 'weekly':
### Update the list of packages
By default, Puppet runs `apt-get update` on the first Puppet run after you include the `apt` class, and anytime `notify => Exec['apt_update']` occurs; i.e., whenever config files get updated or other relevant changes occur. If you set `update['frequency']` to 'always', the update runs on every Puppet run. You can also set `update['frequency']` to 'daily' or 'weekly':