Certbot Docker

Docker Certbot that runs on a schedule to create and renew SSL certificates. Uses Cloudflare for DNS-01 verification. Automatic renewal attempt happens every 6 hours.

Building & Running

git clone https://git.mrmeeb.stream/certbot-cron-docker

cd certbot-cron-docker

docker build -t certbot-cron .

docker run -d --name certbot-cron \
    -e EMAIL=admin@domain.com \
    -e DOMAINS=domain.com \
    -v /docker/certbot-cron:/config \
    certbot-cron

Environment Variables:

Variable	Default Value	Description
EMAIL	None	Email address for renewal information & other communications
DOMAINS	None	Domains to be included in the certificate. Comma separated list, no spaces. Wildcards supported
INTERVAL	0 /6 * *	How often certbot attempts to renew the certificate. Cron syntax
STAGING	false (case-sensitive)	Uses the LetsEncrypt staging endpoint for testing - avoids the aggressive rate-limiting of the production endpoint
PROPOGATION_TIME	10	The amount of time (seconds) that certbot waits for the TXT records to propogate to Cloudflare before verifying - the more domains in the certificate, the longer you might need
GENERATE_DHPARAM	true (case-sensitive)	Generate Diffie-Hellman keys in /config/letsencrypt/keys

Volumes

Docker path	Purpose
/config	Stores configs and LetsEncrypt output for mounting in other containers

Other

Thanks to this guy for explaining how to make cron actually shutdown when stopping the container.

1.6 KiB Raw Blame History

Certbot Docker

Building & Running

Environment Variables:

Volumes

Other

1.6 KiB

Raw Blame History