Run docker-compose build in .gitlab-ci.yml

Question

I have a .gitlab-ci.yml file which contains following:

image: docker:latest

services:
  - docker:dind
         


        

Answer 1

Alpine linux now has a docker-compose package in their "edge" branch, so you can install it this way in .gitlab-ci.yml

a-job-with-docker-compose:
  image: docker
  services:
    - docker:dind
  script:
    - apk add docker-compose --update-cache --repository http://dl-3.alpinelinux.org/alpine/edge/testing/ --allow-untrusted
    - docker-compose -v

Answer 2

It really took me some time to get it working with Gitlab.com shared runners.

I'd like to say "use docker/compose:latest and that's it", but unfortunately I was not able to make it working, I was getting Cannot connect to the Docker daemon at tcp://docker:2375/. Is the docker daemon running? error even when all the env variables were set.

Neither I like an option to install five thousands of dependencies to install docker-compose via pip.

Fortunately, for the recent Alpine versions (3.10+) there is docker-compose package in Alpine repository. It means that @n2o's answer can be simplified to:

test:
  image: docker:19.03.0

  variables:
    DOCKER_DRIVER: overlay2
    # Create the certificates inside this directory for both the server
    # and client. The certificates used by the client will be created in
    # /certs/client so we only need to share this directory with the
    # volume mount in `config.toml`.
    DOCKER_TLS_CERTDIR: "/certs"

  services:
    - docker:19.03.0-dind

  before_script:
    - apk --no-cache add docker-compose      # <---------- Mind this line
    - docker info
    - docker-compose --version

  stage: test
  script:
      - docker-compose build

This worked perfectly from the first try for me. Maybe the reason other answers didn't was in some configuration of Gitlab.com shared runners, I don't know...

Answer 3

there is tiangolo/docker-with-compose which works:

image: tiangolo/docker-with-compose

stages:
  - build
  - test
  - release
  - clean

  
before_script:
  - docker login -u gitlab-ci-token -p $CI_BUILD_TOKEN registry.gitlab.com

build:
  stage: build
  script:
    - docker-compose -f docker-compose-ci.yml build --pull 


test1:
    stage: test
    script:
        - docker-compose -f docker-compose-ci.yml up -d
        - docker-compose -f docker-compose-ci.yml exec -T php ...