gitlab-compose-example.yml

version: '2'
services:
  gitlab:
    restart: always
    container_name: gitlab
    image: gitlab/gitlab-ce:9.3.0-ce.0
    ports:
      - "80:80"
      - "443:443"
    volumes:
      - /opt/gitlab/etc:/etc/gitlab
      - /opt/gitlab/var/log:/var/log/gitlab
      - /opt/gitlab/var/opt:/var/opt/gitlab
  gitlab-runner-register:
    restart: "no"
    container_name: gitlab_runner_register
    image: gitlab/gitlab-runner:alpine-v9.3.0
    # Changed entrypoint to a mini bash script to ensure that multiple registrations don't happen
    # Checks if config.toml exists, which means either it was placed there as part of bootstrapping
    # or manufactured using the "gitlab-runner register" command
    entrypoint: >
      bash -c
      "if [[ -r /etc/gitlab-runner/config.toml ]]; then
      echo 'config.toml foud, therefore it is already registered or config has been placed there';
      exit 0;
      else
      echo 'config.toml not foud, waiting for 3min and registering';
      sleep 3m;
      gitlab-runner register -n;
      fi"
    # Ensure the same volumes are used for the actual runner instance below
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock
      - /opt/gitlab-runner:/etc/gitlab-runner
    # More information regarding environment variables that can be used for the registering 
    # of `gitlab-runner` container with `gitlab` can be found 
    # at: https://gitlab.com/gitlab-org/gitlab-ci-multi-runner/blob/master/docs/commands/README.md#gitlab-runner-register
    environment:
      RUNNER_TAG_LIST: shared
      REGISTER_NON_INTERACTIVE: "true"
      REGISTRATION_TOKEN: TOKEN
      RUNNER_NAME: gitlab-runner
      RUNNER_LIMIT: 1
      RUNNER_REQUEST_CONCURRENCY: 4
      CI_SERVER_URL: GITLAB_URL
      RUNNER_EXECUTOR: docker
      DOCKER_HOST: localhost
      DOCKER_IMAGE: ruby:2.1
      DOCKER_CPUSET_CPUS: "0,1"
      DOCKER_WAIT_FOR_SERVICES_TIMEOUT: 30
      DOCKER_PULL_POLICY: always
  gitlab-runner:
    restart: always
    container_name: gitlab_runner
    image: gitlab/gitlab-runner:alpine-v9.3.0
    depends_on:
      - gitlab
      - gitlab-runner-register
    # Ensure the same volumes are used as the register instance above
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock
      - /opt/gitlab-runner:/etc/gitlab-runner