docker-image.yml

# docker-image.yml
name: Publish Docker image   # workflow名称，可以在Github项目主页的【Actions】中看到所有的workflow

on:   # 配置触发workflow的事件
  push:
    branches:  # 添加这一行来指定触发分支
      - 'main'   # 两个星号代表任意分支
    tags:       # tag更新时触发此workflow
      - '*'

jobs:  # workflow中的job

  push_to_registry:  # job的名字
    name: Push Docker image to Docker Hub
    runs-on: ubuntu-latest   # job运行的基础环境
    strategy:
      matrix:
        include:
          - platform: linux/amd64
            tag_suffix: amd64
          - platform: linux/arm/v7
            tag_suffix: armv7
          - platform: linux/arm64
            tag_suffix: arm64

    steps:  # 一个job由一个或多个step组成
      - name: Check out the repo
        uses: actions/checkout@v2   # 官方的action，获取代码

      - name: Install jq
        run: sudo apt-get install jq

      - name: Extract package version
        id: package_version
        run: echo "::set-output name=VERSION::$(jq -r '.version' package.json)"

      - name: Set up QEMU
        uses: docker/setup-qemu-action@v1
  
      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v1

      - name: Log in to Docker Hub
        uses: docker/login-action@v1  # 三方的action操作， 执行docker login
        with:
          username: ${{ secrets.DOCKERHUB_USERNAME }}  # 配置dockerhub的认证，在Github项目主页 【Settings】 -> 【Secrets】 添加对应变量
          password: ${{ secrets.DOCKERHUB_TOKEN }}

      - name: Extract metadata (tags, labels) for Docker
        id: meta
        uses: docker/metadata-action@v3  # 抽取项目信息，主要是镜像的tag
        with:
          images: atorber/chatflow-worker

      - name: Build and push Docker image
        uses: docker/build-push-action@v2 # docker build & push
        with:
          context: .
          file: ./Dockerfile
          platforms: ${{ matrix.platform }}
          tags: |
            atorber/chatflow:${{ matrix.tag_suffix }}-${{ steps.package_version.outputs.VERSION }}
            atorber/chatflow:${{ matrix.tag_suffix }}-latest
          push: true
          labels: ${{ steps.meta.outputs.labels }}