.gitlab-ci.yml

image: docker:latest
services:
  - docker:dind

stages:
  - build
  - release

variables:
  CI_REGISTRY_TEST_IMAGE: $CI_REGISTRY_IMAGE:$CI_COMMIT_REF_SLUG


build:
  stage: build

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

  script:
    - docker build --pull -t $CI_REGISTRY_TEST_IMAGE .
    - docker push $CI_REGISTRY_TEST_IMAGE

  after_script:
    - docker logout $CI_REGISTRY


release-image:
  stage: release

  before_script:
    - docker login -u "$CI_REGISTRY_USER" -p "$CI_REGISTRY_PASSWORD" $CI_REGISTRY
    - docker login -u "$DOCKERHUB_REGISTRY_USER" -p "$DOCKERHUB_REGISTRY_PASSWORD" $DOCKERHUB_REGISTRY

  script:
    - docker pull $CI_REGISTRY_TEST_IMAGE
    - docker tag $CI_REGISTRY_TEST_IMAGE "$CI_REGISTRY_IMAGE:latest"
    - docker tag $CI_REGISTRY_TEST_IMAGE "$DOCKERHUB_REGISTRY_IMAGE:latest"
    - docker push "$CI_REGISTRY_IMAGE:latest"
    - docker push "$DOCKERHUB_REGISTRY_IMAGE:latest"

  after_script:
    - docker logout $CI_REGISTRY
    - docker logout $DOCKERHUB_REGISTRY

  only:
    - master