stages:
  - build

variables:
  DOCKER_DRIVER: overlay2
  DOCKER_TLS_CERTDIR: ""

build:
  stage: build
  image: docker:20.10.12

  services:
    - name: docker:20.10.12-dind
      command:
        - "--registry-mirror=https://docker.210.30.200.148.nip.io/"

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

  script:
    - |
      # Git Tag 流水线使用版本号；main 分支流水线使用短提交号，避免生成过长的镜像标签。
      if [ -n "$CI_COMMIT_TAG" ]; then
        IMAGE_TAG="$CI_COMMIT_TAG"
      else
        IMAGE_TAG="$CI_COMMIT_SHORT_SHA"
      fi
      docker build -t "$CI_REGISTRY_IMAGE:$IMAGE_TAG" .
      docker tag "$CI_REGISTRY_IMAGE:$IMAGE_TAG" "$CI_REGISTRY_IMAGE:latest"
      docker push "$CI_REGISTRY_IMAGE:$IMAGE_TAG"
      docker push "$CI_REGISTRY_IMAGE:latest"

  only:
    - main
    - tags