stages:
  - docker-build

docker-build:
  stage: docker-build
  image: docker:latest
  services:
    - docker:dind
  script:
    - wget https://github.com/git/git/archive/refs/tags/v2.35.5.tar.gz
    - docker build -t git:v2.35.5 .
    - docker images
    - docker login -u "$DOCKER_USERNAME" -p "$DOCKER_PASSWORD"
    - docker tag git:v2.35.5 $DOCKER_USERNAME/git:v2.35.5
    - docker images
    - docker push $DOCKER_USERNAME/git:v2.35.5
  # https://docs.gitlab.com/ee/ci/yaml/index.html#rules
  rules:
    - if: $CI_COMMIT_TAG