How can I make docker-compose build an image from a remote git repository?
Are you running version 1.5.2? It looks like this was actually recently added in https://github.com/docker/compose/pull/2430. Try upgrading.
Example:
---version: '2'services: redis: image: "redis:3.2.3" hostname: redis redis-commander: build: https://github.com/joeferner/redis-commander.git command: --redis-host redis links: - "redis:redis" ports: - 8081
Tested with:
$ docker-compose -vdocker-compose version 1.11.2, build dfed245
The file tests/unit/config/config_test.py
shows:
def test_valid_url_in_build_path(self): valid_urls = [ 'git://github.com/docker/docker', 'git@github.com:docker/docker.git', 'git@bitbucket.org:atlassianlabs/atlassian-docker.git', 'https://github.com/docker/docker.git', 'http://github.com/docker/docker.git', 'github.com/docker/docker.git', ]
This is confirmed with compose/config/config.py#L79-L85
:
DOCKER_VALID_URL_PREFIXES = ( 'http://', 'https://', 'git://', 'github.com/', 'git@',)
I think there is a better way to do this now!
If you want to use a Dockerfile that's located inside the repo and the repo is public, your best guess is to use the raw file.
E.g. for the file Dockerfile_dev inside https://github.com/certbot/certbot, you could use https://raw.githubusercontent.com/certbot/certbot/master/Dockerfile-dev
Then in docker-compose, add it like this in order to use the Dockerfile from the remote location.
certbot_dev: image: certbot-dev build: https://raw.githubusercontent.com/certbot/certbot/master/Dockerfile-dev
You can find the raw link, when you click on a button called 'Raw' inside the file preview: https://github.com/certbot/certbot/blob/master/Dockerfile-dev