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:
      - |
        # 定义应用相关的名称标识
        APP_NAME="node-app"
        CONTAINER_NAME="node-app-prod"
        CURRENT_TAG="${DRONE_COMMIT_SHA:0:8}"

        # 调试输出变量值，确认变量是否正确设置
        echo "调试信息: APP_NAME=${APP_NAME}, CONTAINER_NAME=${CONTAINER_NAME}, CURRENT_TAG=${CURRENT_TAG}"
        
        echo "开始清理残留资源..."
        
        # 1. 停止并删除正在运行的旧容器
        # 增强检查：确保CONTAINER_NAME有值
        if [ -n "${CONTAINER_NAME}" ] && [ "$(docker ps -q -f name=${CONTAINER_NAME})" ]; then
          echo "停止并删除运行中的容器: ${CONTAINER_NAME}"
          docker stop "${CONTAINER_NAME}" || true
          docker rm "${CONTAINER_NAME}" || true
        else
          echo "没有运行中的 ${CONTAINER_NAME} 容器或容器名称未设置"
        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..."
        docker images --filter "reference=${APP_NAME}:*" --format "{{.ID}} {{.Tag}}" | \
        while read -r image_id tag; do
          if [ "$tag" != "$CURRENT_TAG" ] && [ "$tag" != "<none>" ]; then
            echo "删除旧镜像: ${APP_NAME}:${tag} (ID: ${image_id})"
            docker rmi -f ${image_id} || true
          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
          docker rmi -f $dangling_images || 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:
      # 安装iproute2工具
      - apt-get update && apt-get install -y iproute2
      # 验证ip命令是否可用
      - ip -V
      # 安装项目依赖
      - 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

# 定义卷用于共享依赖和Docker socket
volumes:
  - name: node_modules
    temp: {}
  - name: docker-socket
    host:
      path: /var/run/docker.sock

# 构建触发条件
trigger:
  branch:
    - main
    - develop
  event:
    - push
    - pull_request