.gitlab-ci.yml

stages:
- build
- test
- image
build:
  stage: build
  before_script:
    - docker login -u gitlab-ci-token -p $CI_BUILD_TOKEN $CI_REGISTRY
  script:
    - docker build -t $CI_REGISTRY_IMAGE:$CI_BUILD_REF_NAME .
    - docker push $CI_REGISTRY_IMAGE:$CI_BUILD_REF_NAME
    - docker rmi $CI_REGISTRY_IMAGE:$CI_BUILD_REF_NAME

release:
  stage: image
  before_script:
    - docker login -u gitlab-ci-token -p $CI_BUILD_TOKEN $CI_REGISTRY
  script:
    - docker pull $CI_REGISTRY_IMAGE:$CI_BUILD_REF_NAME
    - docker tag $CI_REGISTRY_IMAGE:$CI_BUILD_REF_NAME $CI_REGISTRY_IMAGE:$(cat VERSION)
    - docker push $CI_REGISTRY_IMAGE:$(cat VERSION)
    - docker rmi $CI_REGISTRY_IMAGE:$(cat VERSION)
    - docker tag $CI_REGISTRY_IMAGE:$CI_BUILD_REF_NAME $CI_REGISTRY_IMAGE:latest
    - docker push $CI_REGISTRY_IMAGE:latest
    - docker rmi $CI_REGISTRY_IMAGE:latest
  only:
    - master