build:signal-server:
  tags:
    - docker-builder
  image: docker:latest
  stage: build
  script:
    - docker login -u gitlab-ci-token -p ${CI_JOB_TOKEN} ${CI_REGISTRY}
    - docker build -t ${CI_REGISTRY_IMAGE}/signal-server:${CI_COMMIT_SHA:0:8} .
    - export VERSION=$(docker run ${CI_REGISTRY_IMAGE}/signal-server:${CI_COMMIT_SHA:0:8} -v)
    - docker tag ${CI_REGISTRY_IMAGE}/signal-server:${CI_COMMIT_SHA:0:8} ${CI_REGISTRY_IMAGE}/signal-server:${CI_COMMIT_REF_SLUG}
    - docker tag ${CI_REGISTRY_IMAGE}/signal-server:${CI_COMMIT_SHA:0:8} ${CI_REGISTRY_IMAGE}/signal-server:${VERSION}
    - docker push ${CI_REGISTRY_IMAGE}/signal-server:${CI_COMMIT_SHA:0:8}
    - docker push ${CI_REGISTRY_IMAGE}/signal-server:${CI_COMMIT_REF_SLUG}
    - docker push ${CI_REGISTRY_IMAGE}/signal-server:${VERSION}