image: docker:stable

stages:
  - image

docker image:
  stage: image
  only:
    variables:
      - $BUILD_IMAGE == "true"
  variables:
    DOCKER_DRIVER: overlay2
  services:
    - docker:dind
  script:
    - docker login -u gitlab-ci-token -p $CI_JOB_TOKEN registry.gitlab.com
    - docker build -t registry.gitlab.com/openstapps/app-release-template .
    - docker push registry.gitlab.com/openstapps/app-release-template
  only:
    - main
  tags:
    - docker