GitLab CI: Docker in Docker (DinD) on gitlab.com Shared Runners

How to run DinD jobs on gitlab.com Shared Runners

Gitlab provides shared runners for the repositories that are hosted on gitlab.com: https://docs.gitlab.com/ee/ci/runners/README.html#shared-runners

You can run Docker commands inside a job by

• selecting a runner that has the docker capability (tags: docker )

• using the docker image for the job (image: docker:latest )

• registering a docker:dind service (services: docker:dind )

An example running a container that says hello:

stages:
  - Say Hello

hello-world:
  stage: Say Hello
  tags:
    - docker
  image: docker:latest
  services:
    - docker:dind
  script:
    - docker run --rm hello-world:latest

GitLab CI pipeline output