.gitlab-ci.yml

image: tmaier/docker-compose:latest

services:
  - docker:dind

stages:
  - build
  - release

variables:
  APP_TAG: app-local
  TEST_TAG: $CI_REGISTRY_IMAGE:$CI_COMMIT_REF_SLUG
  RELEASE_TAG: $CI_REGISTRY_IMAGE:latest
  BUILD_DIR: build/

before_script:
  - docker --version
  - docker-compose --version
  - docker login -u "$CI_REGISTRY_USER" -p "$CI_REGISTRY_PASSWORD" $CI_REGISTRY

build:
  stage: build
  script:
    - docker pull $RELEASE_TAG || true
    - docker build --cache-from $RELEASE_TAG --file $BUILD_DIR/Dockerfile --target production --tag $TEST_TAG .
    - docker tag $TEST_TAG $APP_TAG
    - docker-compose -f $BUILD_DIR/docker-compose.test.yml run sut
    - docker push $TEST_TAG

release:
  stage: release
  script:
    - docker pull $TEST_TAG
    - docker tag $TEST_TAG $RELEASE_TAG
    - docker push $RELEASE_TAG
  only:
    - master