Docker Compose深度测评：2026年最强容器编排工具还香吗？

# 安装WSL2并重启
wsl --install
# 重启电脑后，设置WSL2为默认版本
wsl --set-default-version 2

# 验证Docker
docker --version
# 验证Compose（Docker Desktop已内置）
docker compose version

# 终端输入
docker compose version
# 输出示例：Docker Compose version v2.30.1

# 更新包索引
sudo apt-get update

# 安装依赖
sudo apt-get install ca-certificates curl

# 创建密钥目录
sudo install -m 0755 -d /etc/apt/keyrings

# 下载GPG密钥
sudo curl -fsSL https://download.docker.com/linux/ubuntu/gpg -o /etc/apt/keyrings/docker.asc
sudo chmod a+r /etc/apt/keyrings/docker.asc

# 添加仓库到APT源
echo \
  "deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.asc] https://download.docker.com/linux/ubuntu \
  $(. /etc/os-release && echo "$VERSION_CODENAME") stable" | \
  sudo tee /etc/apt/sources.list.d/docker.list > /dev/null

sudo apt-get update

# 安装Docker Compose插件
sudo apt-get install docker-compose-plugin

docker compose version

# 创建插件目录
DOCKER_CONFIG=${DOCKER_CONFIG:-$HOME/.docker}
mkdir -p $DOCKER_CONFIG/cli-plugins

# 下载指定版本（以v2.30.1为例）
curl -SL https://github.com/docker/compose/releases/download/v2.30.1/docker-compose-linux-x86_64 -o $DOCKER_CONFIG/cli-plugins/docker-compose

# 赋予执行权限
chmod +x $DOCKER_CONFIG/cli-plugins/docker-compose

my-blog/
├── docker-compose.yml      # 核心编排文件
├── .env                    # 环境变量
├── nginx/
│   └── default.conf        # Nginx配置
└── data/                   # 数据库数据挂载（git忽略）

version: '3.8'

services:
  # MySQL数据库
  mysql:
    image: mysql:8.0
    container_name: blog_db
    restart: unless-stopped
    environment:
      MYSQL_ROOT_PASSWORD: ${DB_ROOT_PASSWORD}
      MYSQL_DATABASE: ghost
      MYSQL_USER: ghost
      MYSQL_PASSWORD: ${DB_PASSWORD}
    volumes:
      - mysql_data:/var/lib/mysql
    networks:
      - backend
    healthcheck:
      test: ["CMD", "mysqladmin", "ping", "-h", "localhost"]
      interval: 10s
      timeout: 5s
      retries: 5

  # Ghost博客主程序
  ghost:
    image: ghost:5-alpine
    container_name: blog_app
    restart: unless-stopped
    depends_on:
      mysql:
        condition: service_healthy
    environment:
      url: https://blog.yourdomain.com
      database__client: mysql
      database__connection__host: mysql
      database__connection__user: ghost
      database__connection__password: ${DB_PASSWORD}
      database__connection__database: ghost
    volumes:
      - ghost_content:/var/lib/ghost/content
    networks:
      - backend
      - frontend

  # Nginx反向代理
  nginx:
    image: nginx:alpine
    container_name: blog_nginx
    restart: unless-stopped
    ports:
      - "80:80"
      - "443:443"
    volumes:
      - ./nginx/default.conf:/etc/nginx/conf.d/default.conf:ro
      - ./ssl:/etc/nginx/ssl:ro
      - ghost_content:/var/www/ghost:ro
    depends_on:
      - ghost
    networks:
      - frontend

# 定义网络
networks:
  frontend:
    driver: bridge
  backend:
    driver: bridge

# 定义持久化卷
volumes:
  mysql_data:
  ghost_content:

# 数据库配置
DB_ROOT_PASSWORD=MyStr0ng!RootP@ss
DB_PASSWORD=GhostUserP@ss123

server {
    listen 80;
    server_name blog.yourdomain.com;
    return 301 https://$server_name$request_uri;
}

server {
    listen 443 ssl http2;
    server_name blog.yourdomain.com;

    ssl_certificate /etc/nginx/ssl/cert.pem;
    ssl_certificate_key /etc/nginx/ssl/key.pem;

    location / {
        proxy_pass http://ghost:2368;
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header X-Forwarded-Proto $scheme;
    }

    location /content/images {
        alias /var/www/ghost/content/images;
        expires 30d;
    }
}

# 进入项目目录
cd my-blog

# 创建SSL目录（开发环境可自签名）
mkdir ssl
# 这里放你的证书文件...

# 启动所有服务（-d后台运行）
docker compose up -d

# 查看日志
docker compose logs -f

# 确认所有服务健康
docker compose ps

# 停止所有服务
docker compose down

# 停止并删除卷（谨慎！会清空数据）
docker compose down -v

# 重新构建镜像（Ghost主题修改后）
docker compose build ghost

# 查看资源占用
docker compose top