Sun* CI Documentation

# Using docker-compose

# Build image

You can also use docker-compose for defining and running multi-container. The example below show how you can use docker-compose for our demo project.

jobs:
- name: Docker in Docker
  stage: test
  image: docker:20.10.17
  services:
  - docker:20.10.17-dind
  before_script:
  - apk add docker-compose
  script:
  - cp .env.example .env
  - docker-compose up -d
  - docker-compose exec -T app composer install
  - docker-compose exec -T app php artisan key:generate
  - docker-compose exec -T app php artisan migrate
  - docker-compose exec -T app ./vendor/bin/phpunit

First things first, you need to install docker-compose into your container. Then you can manage your container with docker-compose command. Our example is just create containers for php, redis, postgres and test connection between them.

The most important thing you need to know when mounting directory in container is you must add or copy files when building image. If you use volumes in docker-compose.yml, nothing will be mounted because any volumes that are mounted in the "docker-in-docker" case is still referenced from the HOST, and not from the container. Therefore, the actual path mounted from the CI container "does not exist" in the HOST.