alemax-xyz/certbot

Letsencrypt certbot docker image

Letsencrypt certbot docker image

Let’s Encrypt is a free, automated, and open Certificate Authority.

This image is based on ppa:certbot/certbot packages for Ubuntu Xenial and is built on top of clover/python.

By default, the container will only renew certificates every day in a webroot mode.

Data volumes

Location	Description
/etc/letsencrypt	certificates, private keys and certbot configuration files
/var/www/.well-known/acme-challenge	(not exported) acme challenges in webroot mode
/var/log/letsencrypt	(not exported) certbot log files
/var/lib/letsencrypt	(not exported) certbot working directory

PUID/PGID owner will be recursively set to all directories listed above at startup.

Exposed ports

Port	Description
80	HTTP in a standalone web server mode *
443	HTTPS in a standalone web server mode *

* webroot mode is used by default, there are no processes listening on ports above.

Enviroment variables

Name	Default value	Description
PUID	50	Desired UID of the process owner **
PGID	primary group id of the UID user (50)	Desired GID of the process owner **

** PUID/PGID could be used to preserve data volume ownership on host.

Configuration files

Location	Description
/etc/letsencrypt/cli.ini	Default certbot configuration