# This file is a template, and might need editing before it works on your project.
# Official docker image.
image: docker:latest

variables:
  # When using dind service we need to instruct docker, to talk with the
  # daemon started inside of the service. The daemon is available with
  # a network connection instead of the default /var/run/docker.sock socket.
  #
  # Note that if you're using Kubernetes executor, the variable should be set to
  # tcp://localhost:2375 because of how Kubernetes executor connects services
  # to the job container
  DOCKER_HOST: tcp://localhost:2375/
  # When using dind, it's wise to use the overlayfs driver for
  # improved performance.
  DOCKER_DRIVER: overlay2
  
  CONTAINER_TEST_IMAGE: "$CI_REGISTRY_IMAGE:$CI_COMMIT_REF_SLUG"
  CONTAINER_RELEASE_IMAGE: "$CI_REGISTRY_IMAGE:latest"

services:
   - docker:dind

stages:
  - build
  - release

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

build:
  stage: build
  script:
    - docker build --pull -t "$CONTAINER_TEST_IMAGE" .
    - docker push "$CONTAINER_TEST_IMAGE"

release-image:
  stage: release
  script:
    - docker pull "$CONTAINER_TEST_IMAGE"
    - docker tag "$CONTAINER_TEST_IMAGE" "$CONTAINER_RELEASE_IMAGE"
    - docker push "$CONTAINER_RELEASE_IMAGE"
  only:
    - master