# Ansible Role: Certbot (for Let's Encrypt)

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Installs and configures Certbot (for Let's Encrypt).

## Requirements

If one wants to install Certbot from upstream Git repository instead of distribution's package management, this role requires Git to be installed. You can install Git using the `geerlingguy.git` role.

## Role Variables

The variable `certbot_install_from_source` controls whether to install Certbot from Git or package management. The latter is the default, so the variable defaults to `no`.

    certbot_auto_renew: true
    certbot_auto_renew_user: "{{ ansible_user }}"
    certbot_auto_renew_hour: 3
    certbot_auto_renew_minute: 30

By default, this role configures a cron job to run under the provided user account at the given hour and minute, every day. The defaults run `certbot renew` (or `certbot-auto renew`) via cron every day at 03:30:00 by the user you use in your Ansible playbook. It's preferred that you set a custom user/hour/minute so the renewal is during a low-traffic period and done by a non-root user account.

### Variables Relavant for Source Installation from Git

    certbot_install_from_source: yes
    certbot_repo: https://github.com/certbot/certbot.git
    certbot_version: master
    certbot_keep_updated: yes

Certbot Git repository options. This clones the configured `certbot_repo`, respecting the `certbot_version` setting. If `certbot_keep_updated` is set to `yes`, the repository is updated every time this role runs.

    certbot_dir: /opt/certbot

The directory inside which Certbot will be cloned.

## Dependencies

None.

## Example Playbook

    - hosts: servers

      vars:
        certbot_auto_renew_user: your_username_here
        certbot_auto_renew_minute: 20
        certbot_auto_renew_hour: 5

      roles:
        - geerlingguy.certbot

After installation, you can create certificates using the `certbot` (or `certbot-auto`) script, which by default is installed inside the configured `certbot_dir` (when using Git). Here are some example commands to configure certificates with Certbot:

    # Automatically add certs for all Apache virtualhosts (use with caution!).
    /opt/certbot/certbot-auto --apache

    # Generate certs, but don't modify Apache configuration (safer).
    /opt/certbot/certbot-auto --apache certonly

By default, this role adds a cron job that will renew all installed certificates once per day at the hour and minute of your choosing.

You can test the auto-renewal (without actually renewing the cert) with the command:

    /opt/certbot/certbot-auto renew --dry-run

See full documentation and options on the [Certbot website](https://certbot.eff.org/).

## License

MIT / BSD

## Author Information

This role was created in 2016 by [Jeff Geerling](https://www.jeffgeerling.com/), author of [Ansible for DevOps](https://www.ansiblefordevops.com/).