add in build

  before_script:

    - docker login -u gitlab-ci-token -p $CI_JOB_TOKEN $CI_REGISTRY

  script:

    - docker build -t $CI_REGISTRY_IMAGE .

    - docker push $CI_REGISTRY_IMAGE

    - docker build -t $CI_REGISTRY_IMAGE/nginx -f nginx.Dockerfile .

    - docker push $CI_REGISTRY_IMAGE/nginx

    - docker build -t $CI_REGISTRY_IMAGE:$CI_COMMIT_REF_SLUG .

    - docker push $CI_REGISTRY_IMAGE:$CI_COMMIT_REF_SLUG

    - docker build -t $CI_REGISTRY_IMAGE/nginx:$CI_COMMIT_REF_SLUG -f nginx.Dockerfile .

    - docker push $CI_REGISTRY_IMAGE/nginx:$CI_COMMIT_REF_SLUG

build:docker:

  extends: .build:docker