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  before_script:   - docker info   - docker-compose --version  buildJob:   stage: build   tags:     - docker   script:     - docker-compose build 

But in ci-log I receive message:

$ docker-compose --version /bin/sh: eval: line 46: docker-compose: not found 

What am I doing wrong?

Answer 1

Docker also provides an official image: docker/compose

This is the ideal solution if you don't want to install it every pipeline.

Note that in the latest version of GitLab CI/Docker you will likely need to give privileged access to your GitLab CI Runner and configure/disable TLS. See Use docker-in-docker workflow with Docker executor

variables:   DOCKER_HOST: tcp://docker:2375/   DOCKER_DRIVER: overlay2  # Official docker compose image. image:   name: docker/compose:latest  services:   - docker:dind  before_script:   - docker version   - docker-compose version  build:   stage: build   script:     - docker-compose down     - docker-compose build     - docker-compose up tester-image 

---

Note that in versions of docker-compose earlier than 1.25:

Since the image uses docker-compose-entrypoint.sh as entrypoint you'll need to override it back to /bin/sh -c in your .gitlab-ci.yml. Otherwise your pipeline will fail with No such command: sh

    image:       name: docker/compose:latest       entrypoint: ["/bin/sh", "-c"]