Automatically generate wildcard certificates using certbot and keep them renewed!

• Easy to use / configure
• Set-and-forget: certificates will be kept up-to-date automatically
• Super low on resources, especially when idle

• Cloudflare

Adding support for other providers is quite simple, so open an issue if you'd like to see more!

1. Clone this repository
2. Modify docker-compose.yml for your configuration.
   1. You must set at least one domain name (separated by ;), your DNS provider and a contact email (for Let's Encrypt).
   2. After you have verified that everything works, unset the STAGING variable to generate a certificate from the production environment.
3. Modify your DNS provider's config file in dns-creds/ for authentication.
   1. This is usually an API key, account credentials or something similar.
4. Run it using docker-compose up -d and you're good to go! Generated certificates will be put in the letsencrypt/ directory.

It is possible to add custom arguments to be used when running certbot. This allows you to, for example, add additional delay to wait for DNS changes to propagate before confirming with ACME.

Let's say you wanted to add the following command line arguments:

--dns-cloudflare-propagation-seconds 30
--cert-path my/custom/path

You can tell Certbot-Auto about these arguments by setting the EXTRA_ARGS environment variable like this:

- EXTRA_ARGS=dns-cloudflare-propagation-seconds=30;cert-path=my/custom/path

I am not affiliated with Certbot or Let's Encrypt, but I am a huge fan! :-)

If you like what they're doing, please consider donating to Let's Encrypt or the EFF.