docker.yaml

name: Docker

on:
  workflow_dispatch:
  push:
    branches: [ main ]


env:
  ALIYUN_REGISTRY: "${{ secrets.ALIYUN_REGISTRY }}"
  ALIYUN_NAME_SPACE: "${{ secrets.ALIYUN_NAME_SPACE }}"
  ALIYUN_REGISTRY_USER: "${{ secrets.ALIYUN_REGISTRY_USER }}"
  ALIYUN_REGISTRY_PASSWORD: "${{ secrets.ALIYUN_REGISTRY_PASSWORD }}"

jobs:

  build:
    name: Pull
    runs-on: ubuntu-latest
    steps:
    - name: Before freeing up disk space
      run: |
        echo "Before freeing up disk space"
        echo "=============================================================================="
        df -hT
        echo "=============================================================================="

    # 增加可用磁盘空间
    - name: Maximize build space
      uses: easimon/maximize-build-space@master
      with:

        root-reserve-mb: 2048
        swap-size-mb: 128
        remove-dotnet: 'true'
        remove-haskell: 'true'
        # 如果空间还是不够用，可以把以下开启，清理出更多空间
        # remove-android: 'true'
        # remove-codeql: 'true'
        build-mount-path: '/var/lib/docker/'

    - name: Restart docker
      run: sudo service docker restart

    - name: Free up disk space complete
      run: |
        echo "Free up disk space complete"
        echo "=============================================================================="
        df -hT
        echo "=============================================================================="

    - name: Checkout Code
      uses: actions/checkout@v4

    - name: Docker Setup Buildx
      uses: docker/setup-buildx-action@v3

    - name: Build and push image Aliyun
      run: |
        docker login -u $ALIYUN_REGISTRY_USER -p $ALIYUN_REGISTRY_PASSWORD $ALIYUN_REGISTRY
        max_count=72

        # 函数：裁剪字符串，直到长度小于或等于最大长度
        trim_string() {
          local str="$1"
          # 计算字符串长度
          local len=${#str}
          
          # 只要字符串长度大于最大长度，就继续裁剪
          while [ "$len" -gt $max_count ]; do
            # 去除第一个'/'及其后的所有字符
            str=${str#*/}
            # 更新字符串长度
            len=${#str}
          done
          
          # 返回裁剪后的字符串
          echo "$str"
        }
        
        
        while IFS= read -r line || [ -n "$line" ]; do
          # 忽略空行与注释
          [[ -z "$line" ]] && continue
          if echo "$line" | grep -q '^\s*#'; then
            continue
          fi
          
          echo "docker pull $line"
          docker pull "$line"
          
          platform=$(echo "$line" | awk -F'--platform[ =]' '{if (NF>1) print $2}' | awk '{print $1}')
          echo "platform is $platform"
          # 如果存在架构信息 将架构信息拼到镜像名称前面
          if [ -z "$platform" ]; then
            platform_prefix=""
          else
            platform_prefix="${platform//\//_}_"
          fi
          echo "platform_prefix is $platform_prefix"
          
          # 获取镜像的完整名称，例如kasmweb/nginx:1.25.3（命名空间/镜像名:版本号）
          image=$(trim_string "$line")
          
          # 获取 镜像名:版本号  例如1.25.3
          image_tag=$(echo "$image" | awk -F":" '{print $2}')
          
          # 将@sha256:等字符删除
          image_name_tag="${image_tag%%@*}"
          
          repo=$(echo "$image" | cut -d':' -f1)
          # 替换/为_，这里使用sed命令
          replaced_repo=$(echo "$repo" | sed 's/\//_/g')
          new_image="$ALIYUN_REGISTRY/$ALIYUN_NAME_SPACE/$platform_prefix$replaced_repo:$image_name_tag"
          
          echo "docker tag $line $new_image"
          docker tag "$line" "$new_image"
          
          echo "docker push $new_image"
          docker push "$new_image"
          
          echo "开始清理磁盘空间"
          echo "=============================================================================="
          
          df -hT
          echo "=============================================================================="
          
          docker rmi "$line"
          docker rmi "$new_image"
          
          echo "磁盘空间清理完毕"
          echo "=============================================================================="
          
          df -hT
          echo "=============================================================================="
          
          done < images.txt