parapente/docker-certbot-freedns

A docker image for DNS certbot renewals for freedns.afraid.org

Certbot freedns.afraid.org docker image

The hard part was done by @seii and @ibaiul, I just packaged their work into a docker image.

Environment variables (required)

• DOMAIN_NAME, the domain name or subdomain you are getting certificates for
• EMAIL, your email address so Let's Encrypt can email you when your certificates expire
• DNS_COOKIE, log in to FreeDNS and use the developer tools to inspect the value of dns_cookie. This is used to log you in. is there a better way to get this?
• DOMAIN_ID, go to "Domains" click "[manage]" on the domain you're editing and read the ID from the URL https://freedns.afraid.org/subdomain/?limit=[id]
• DATA_ID, if you haven't already, create a txt record with the name _acme-challenge, then go back and edit it. Read the value of data_id from the URL https://freedns.afraid.org/subdomain/edit.php?data_id=[data_id]

Environment variables (optional)

• TTL, time in seconds to wait for DNS changes to propagate (default: 60)
• RENEW_INTERVAL, how often to run certbot renew acceptable values are any values accepted by the linux sleep command (default: 12h)

Sample docker-compose.yml

version: '3'
services:
    certbot:
        image: trpb/certbot-freedns
        # mount a volume if you need to share the certificates with other containers
        volumes: 
            - ./certificates/conf:/etc/letsencrypt

        # set the environment variables for renewal
        environment:
            DOMAIN_NAME: 'example.org'
            EMAIL: 'tom@example.og'
            DNS_COOKIE: 'xxxxxxxxx'
            DOMAIN_ID: 'xxxxxxx'
            DATA_ID: 'xxxxx'