容器化部署管理脚本

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#!/bin/bash
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# 配置：Docker 项目参数（可按需修改）
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PROJECT_NAME="myapp"
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COMPOSE_FILE="docker-compose.yml"
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WORKING_DIR="/var/www/$PROJECT_NAME"
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BACKUP_DIR="/var/backups/$PROJECT_NAME"
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DATE=$(date +%Y%m%d_%H%M%S)
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# 获取脚本参数
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ACTION="$1"
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SERVICE_NAME="$2"
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# 检查 Docker 和 Docker Compose 是否已安装
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if ! command -v docker &> /dev/null; then
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    echo "错误：Docker 未安装"
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    exit 1
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fi
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if ! command -v docker-compose &> /dev/null; then
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    echo "错误：Docker Compose 未安装"
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    exit 1
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fi
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# 创建备份目录
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mkdir -p "$BACKUP_DIR"
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# 定义各种操作
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case "$ACTION" in
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    "deploy")
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        echo "开始部署 $PROJECT_NAME..."
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        cd $WORKING_DIR
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        docker-compose pull
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        docker-compose up -d
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        echo "部署完成！"
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        ;;
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    "update")
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        echo "开始更新 $PROJECT_NAME..."
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        cd $WORKING_DIR
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        # 创建当前运行版本的备份
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        docker-compose config > "$BACKUP_DIR/${PROJECT_NAME}_config_$DATE.yml"
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        docker images --format "table {{.Repository}}:{{.Tag}}\t{{.CreatedAt}}" > "$BACKUP_DIR/${PROJECT_NAME}_images_$DATE.txt"
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        # 拉取最新镜像并重新部署
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        docker-compose pull
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        docker-compose up -d --remove-orphans
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        echo "更新完成！"
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        ;;
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    "rollback")
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        echo "回滚功能需要预先配置备份，此功能需根据具体情况实现"
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        # 这里可以实现基于备份的回滚逻辑
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        ;;
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    "logs")
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        if [ -n "$SERVICE_NAME" ]; then
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            docker-compose logs -f $SERVICE_NAME
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        else
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            docker-compose logs
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        fi
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        ;;
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    "status")
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        docker-compose ps
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        ;;
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    "stop")
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        cd $WORKING_DIR
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        docker-compose down
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        ;;
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    "clean")
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        echo "清理未使用的 Docker 资源..."
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        docker system prune -f
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        docker volume prune -f
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        docker network prune -f
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        echo "清理完成！"
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        ;;
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    *)
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        echo "用法: $0 {deploy|update|rollback|logs|status|stop|clean} [service_name]"
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        echo "  deploy   - 部署应用"
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        echo "  update   - 更新应用"
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        echo "  rollback - 回滚应用"
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        echo "  logs     - 查看日志 ( 可选: 指定服务名 )"
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        echo "  status   - 查看容器状态"
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        echo "  stop     - 停止应用"
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        echo "  clean    - 清理未使用的 Docker 资源"
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        exit 1
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        ;;
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esac

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version: '3.8'
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services:
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  web:
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    image: nginx:alpine
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    ports:
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      - "80:80"
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      - "443:443"
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    volumes:
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      - ./html:/usr/share/nginx/html
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      - ./nginx.conf:/etc/nginx/nginx.conf
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    restart: unless-stopped
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    depends_on:
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      - app
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  app:
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    build: .
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    ports:
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      - "3000:3000"
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    environment:
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      - NODE_ENV=production
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      - DB_HOST=db
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    restart: unless-stopped
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    depends_on:
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      - db
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  db:
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    image: mysql:8.0
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    ports:
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      - "3306:3306"
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    environment:
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      MYSQL_ROOT_PASSWORD: password
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      MYSQL_DATABASE: myapp
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    volumes:
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      - db_data:/var/lib/mysql
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    restart: unless-stopped
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volumes:
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  db_data:

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#!/bin/bash
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# 配置：健康检查参数（可按需修改）
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PROJECT_NAME="myapp"
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WORKING_DIR="/var/www/$PROJECT_NAME"
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HEALTH_LOG="/var/log/$PROJECT_NAME/health.log"
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# 检查容器状态
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cd $WORKING_DIR
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CONTAINER_STATUS=$(docker-compose ps --status --quiet)
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HEALTHY_SERVICES=$(echo "$CONTAINER_STATUS" | wc -l)
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# 检查服务可用性
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WEB_HEALTH=$(curl -s -o /dev/null -w "%{http_code}" http://localhost 2>/dev/null)
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APP_HEALTH=$(curl -s -o /dev/null -w "%{http_code}" http://localhost:3000/health 2>/dev/null)
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# 记录健康检查结果
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TIMESTAMP=$(date '+%Y-%m-%d %H:%M:%S')
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echo "[$TIMESTAMP] Healthy Services: $HEALTHY_SERVICES" >> "$HEALTH_LOG"
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if [ "$WEB_HEALTH" = "200" ]; then
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    echo "[$TIMESTAMP] Web 服务正常 - HTTP $WEB_HEALTH" >> "$HEALTH_LOG"
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else
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    echo "[$TIMESTAMP] Web 服务异常 - HTTP $WEB_HEALTH" >> "$HEALTH_LOG"
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fi
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if [ "$APP_HEALTH" = "200" ]; then
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    echo "[$TIMESTAMP] App 服务正常 - HTTP $APP_HEALTH" >> "$HEALTH_LOG"
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else
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    echo "[$TIMESTAMP] App 服务异常 - HTTP $APP_HEALTH" >> "$HEALTH_LOG"
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fi
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# 如果服务异常，可选择发送告警（这里省略邮件告警的实现）
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if [ "$WEB_HEALTH" != "200" ] || [ "$APP_HEALTH" != "200" ]; then
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    echo "[$TIMESTAMP] 发现服务异常，可能需要采取恢复措施" >> "$HEALTH_LOG"
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    # 在这里可以添加自动重启或告警逻辑
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fi