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
    environment:
        APP_NAME:
          from_secret: app_name
        CONTAINER_NAME:
          from_secret: container_name
    commands:
      # 直接在命令中设置变量，避免shell解释器问题
      - CURRENT_TAG=$(echo ${DRONE_COMMIT_SHA} | cut -c1-8)
      # - echo "APP_NAME=$APP_NAME, CONTAINER_NAME=$CONTAINER_NAME, CURRENT_TAG=$CURRENT_TAG"
      - echo $APP_NAME
      - echo $CONTAINER_NAME
      - echo $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
      # 使用默认值作为最后的保障
      - |
        SAFE_CONTAINER_NAME=${CONTAINER_NAME:-"node-app-prod-default"}
        if [ "$(docker ps -q -f name=${SAFE_CONTAINER_NAME})" ]; then
          echo "停止并删除运行中的容器: ${SAFE_CONTAINER_NAME}"
          docker stop "${SAFE_CONTAINER_NAME}" || true
          docker rm "${SAFE_CONTAINER_NAME}" || true
        else
          echo "没有运行中的 ${SAFE_CONTAINER_NAME} 容器"
        fi
      
      # 2. 删除同前缀的旧镜像（排除当前构建标签）
      - |
        SAFE_APP_NAME=${APPNAME:-"node-app-default"}
        SAFE_CURRENT_TAG=${CURRENT_TAG:-"unknown"}
        echo "清理旧镜像..."
        docker images --filter "reference=${SAFE_APP_NAME}:*" --format "{{.ID}} {{.Tag}}" | \
        while read -r image_id tag; do
          if [ "$tag" != "$SAFE_CURRENT_TAG" ] && [ "$tag" != "<none>" ]; then
            echo "删除旧镜像: ${SAFE_APP_NAME}:${tag} (ID: ${image_id})"
            docker rmi -f ${image_id} || true
          fi
        done
      
      # 3. 清理悬空镜像
      - |
        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