How to set the Mattermost config in a Docker container?

[nevson]

Is there some way to set the Mattermost config when starting the Docker container?

[nevson]

fyi, I think the configuration from docker-gitlab can be a good example. Also it would be awesome if you could link in custom docker containers for MySQL and Redis that should be used instead of the internal one as shown here and here.

[crspeller]

You can access the config by running these commands:

1. docker exec -ti mattermost-dev /bin/bash
2. cd src/github.com/mattermost/platform/config
3. vi config_docker.json
4. Make your changes
5. docker stop mattermost-dev
6. docker start mattermost-dev

[nevson]

I see, thanks for the hint. Anyhow it'd be nice if this can be done when starting the container. This would make upgrading the docker container much easier as you can simply pass in a configuration on startup instead of manually editing the config in the container.

[Hainish]

👍

You can also copy the file from the docker container to the host, then use that as the authoritative config file, sharing it with the container at runtime:

docker run -d --name=mattermost-tmp mattermost/platform:helium
docker cp mattermost-tmp:/go/src/github.com/mattermost/platform/config/config_docker.json .
docker rm -f mattermost-tmp

.... edit config file in host ...

docker run --name mattermost-dev -d --publish 8065:80 -v $(pwd)/config_docker.json:/go/src/github.com/mattermost/platform/config/config_docker.json mattermost/platform:helium

[crspeller]

Closing because question has been answered. If you still have an question, feel free to continue the discussion at http://forum.mattermost.org/.