Add renew to cron

[perchrh]

It would be nice if the certbot renew job was added to cron automatically.
For my purposes, I just invoked Ansible's cron module, like this

https://github.com/perchrh/ansible-letsencrypt/commit/9de388d0783e26633ddfec0929e69a2b820be2f4

It's configured to run twice daily, as per official letsencrypt recommendations.

[jaywink]

Thanks, this would be a good addition indeed 👍 Will think about it a bit and cherry-pick your commit if we can add it.

[markstos]

@jaywink Now that you've had some time, what do you think about adding cron auto-renewals?