.gitlab-ci.yml

image: docker:latest

stages:
  - build
  - release

variables:
  CONTAINER_IMAGE_BASE: $CI_REGISTRY/$CI_PROJECT_PATH
  CONTAINER_RELEASE_NAME: latest
  CONTAINER_TEST_NAME: $CI_BUILD_REF_SLUG

build:
  stage: build
  script:
    - docker login -u gitlab-ci-token -p $CI_BUILD_TOKEN $CI_REGISTRY
    - docker build --no-cache --pull --build-arg branch=${XO_BRANCH:-master} -t $CONTAINER_IMAGE_BASE:$CONTAINER_TEST_NAME .
    - docker push $CONTAINER_IMAGE_BASE:$CONTAINER_TEST_NAME
  tags:
    - docker

release:
  stage: release
  script:
    - docker login -u gitlab-ci-token -p $CI_BUILD_TOKEN $CI_REGISTRY
    - docker pull $CONTAINER_IMAGE_BASE:$CONTAINER_TEST_NAME
    - docker tag $CONTAINER_IMAGE_BASE:$CONTAINER_TEST_NAME $CONTAINER_IMAGE_BASE:$CONTAINER_RELEASE_NAME
    - docker push $CONTAINER_IMAGE_BASE:$CONTAINER_RELEASE_NAME
  only:
    - master
  tags:
    - docker