kind: pipeline
type: docker
name: nodejs-host-network-pipeline

steps:
  # 步骤0：清理残留容器和镜像（优先执行）
  - name: cleanup-resources
    image: docker:20.10
    volumes:
      - name: docker-socket
        path: /var/run/docker.sock
    commands:
      - |
        echo "开始清理残留资源..."
        
        # 1. 停止并删除正在运行的旧容器
        if [ "$(docker ps -q -f name=node-app-prod)" ]; then
          echo "停止并删除运行中的容器: node-app-prod"
          docker stop node-app-prod || true
          docker rm node-app-prod || true
        else
          echo "没有运行中的 node-app-prod 容器"
        fi
        
        # 2. 删除同前缀的旧镜像（排除当前构建标签）
        echo "清理旧镜像..."
        # 只处理有ID和标签的镜像，跳过空值
        docker images --filter "reference=node-app:*" --format "{{.ID}} {{.Tag}}" | \
        while read -r image_id tag; do
          echo "-----image_id为：$image_id"
          # 检查image_id和tag是否有效
          if [ -n "$image_id" ] && [ -n "$tag" ] && [ "$tag" != "${DRONE_COMMIT_SHA:0:8}" ] && [ "$tag" != "<none>" ]; then
            echo "删除旧镜像: node-app:${tag} (ID: ${image_id})"
            docker rmi -f "${image_id}" || true
          else
            echo "跳过无效镜像: ID=${image_id}, Tag=${tag}"
          fi
        done
        
        # 3. 清理悬空镜像（构建失败产生的none标签镜像）
        echo "清理悬空镜像..."
        dangling_images=$(docker images -f "dangling=true" -q)
        if [ -n "$dangling_images" ]; then
          # 确保只传递非空ID
          echo "$dangling_images" | xargs -I {} docker rmi -f {} || true
        else
          echo "没有悬空镜像需要清理"
        fi

  # 第一步：准备环境并安装依赖
  - name: install-dependencies
    image: node:18-bullseye
    commands:
      - apt-get update && apt-get install -y iproute2
      - ip -V
      - npm install
    volumes:
      - name: node_modules
        path: /app/node_modules

  # 第三步：构建Docker镜像
  - name: build-image
    image: docker:20.10
    volumes:
      - name: docker-socket
        path: /var/run/docker.sock
      - name: node_modules
        path: /app/node_modules
    commands:
      - docker build -t node-app:${DRONE_COMMIT_SHA:0:8} -f Dockerfile .

  # 第四步：使用host网络运行应用
  - name: run-with-host-network
    image: docker:20.10
    volumes:
      - name: docker-socket
        path: /var/run/docker.sock
    commands:
      - |
        docker run -d \
          --restart always \
          --network host \
          --name node-app-prod \
          node-app:${DRONE_COMMIT_SHA:0:8}
    when:
      branch:
        - main

volumes:
  - name: node_modules
    temp: {}
  - name: docker-socket
    host:
      path: /var/run/docker.sock

trigger:
  branch:
    - main
    - develop
  event:
    - push
    - pull_request