Setup

Build

To build nginx-certbot docker image execute the next command from a directory containing Dockerfile

docker build -t nginx-certbot:latest .

To be able to use docker's dns and make requests to services using their names it is required to have all services in the same network.
To create a new network use

docker network create nginx_network

and then use option --net=nginx_network when starting services under docker. This option is already present in start_nginx.sh script.

Run

Before a run it is expected to store all site configs in /etc/nginx-certbot/conf.d folder.
To start nginx-certbot just run the script ./start_nginx.sh

Request certs

To request a let's encrypt certificate for a particular domain use

docker exec -it nginx-container certbot --nginx -n -d <domain> -m <owner's email> --agree-tos

To test the certbot configuration without affecting letsencrypt's limits it is possible to use --test-cert flag.

Useful commands

To reload nginx configuration use

docker exec -it nginx-container nginx -s reload

or

docker exec -it service nginx reload