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README.md

Gogs via Docker

Concept

  • nginx reverse proxy (in docker container), automatically configured (except for the ssl certificates)
  • backend gogs instance (in docker container)

Getting the images

Just pull them:

docker pull hasufell/alpine-gogs
docker pull hasufell/alpine-nginx-proxy

Configuration

Gogs is configured via the web interface once the instance has started.

In addition, the following environment variables can be passed via -e to docker run:

  • VIRTUAL_HOST: sets the hostname for connecting to the gogs backend server
  • VIRTUAL_PORT: tells the front proxy on which port to contact the backend server
  • GOGS_SSH_PORT: this only changes the port of the sshd service, you will still have to adjust it in the web configuration interface (optional, default 22)

Certificates

We need certificates which are named according to the hostname of the gogs instance (e.g. if you will access gogs via https://gogs.foo.com, then you name your certificates files gogs.foo.crt and gogs.foo.key).

Just drop these in a directory. We will mount this directory into the container later.

Running for the first time

Create the volumes. This will create a persistent data volume container. You should not remove it (keep in mind that this container is not running).

docker run \
	--name=gogs-volumes \
	-v /data \
	hasufell/alpine-gogs \
	echo gogs-volumes

Now we start the front proxy.

docker run -ti -d \
	-v /var/run/docker.sock:/tmp/docker.sock:ro \
	-v <full-path-to-nginx-certs>:/etc/nginx/certs \
	-p 80:80 \
	-p 443:443 \
	hasufell/alpine-nginx-proxy

Now we can start the gogs instance.

docker run -ti -d \
	--volumes-from gogs-volumes \
	--name=gogs \
	-e VIRTUAL_HOST=<hostname> \
	-e VIRTUAL_PORT=3000 \
	-e GOGS_SSH_PORT=<ssh-port> \
	-p <sshport>:<sshport> \
	hasufell/alpine-gogs

Note that VIRTUAL_HOST and VIRTUAL_PORT are strictly necessary, because they are used by the front proxy to update its configuration automatically.

Initial web configuration

Make sure:

  • Database Type is SQLite3
  • Domain is set to your domain
  • SSH Port is set to what you specified in GOGS_SSH_PORT (or 22 for default)
  • Application URL is https://<domain>/ (not http) without the Port 3000

Update procedure

docker stop gogs
docker rm gogs
docker pull hasufell/alpine-gogs
docker run -ti -d \
	--volumes-from gogs-volumes \
	--name=gogs \
	-e VIRTUAL_HOST=<hostname> \
	-e VIRTUAL_PORT=3000 \
	-e GOGS_SSH_PORT=<ssh-port> \
	-p <sshport>:<sshport> \
	hasufell/alpine-gogs