.gitlab-ci.yml

image: docker:latest
services:
- docker:dind


variables:
  IMAGE: $CI_REGISTRY_IMAGE:$CI_COMMIT_SHA


stages:
  - build
  - release


before_script:
  - docker login -u gitlab-ci-token -p $CI_JOB_TOKEN $CI_REGISTRY


build-sha:
  stage: build
  script:
    - docker build --pull -t $IMAGE .
    - docker push $IMAGE


.release_script: &release_script
  script:
    - docker pull $IMAGE
    - docker tag $IMAGE $RELEASE_IMAGE
    - docker push $RELEASE_IMAGE


release-latest:
  stage: release
  only:
    - master
  variables:
    RELEASE_IMAGE: $CI_REGISTRY_IMAGE:latest
  <<: *release_script


release-tag:
  stage: release
  only:
    - tags
  variables:
    RELEASE_IMAGE: $CI_REGISTRY_IMAGE:$CI_COMMIT_TAG
  <<: *release_script