253 lines
6.5 KiB
Markdown
253 lines
6.5 KiB
Markdown
# Mirror Proxy - 镜像代理服务
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Go 开发的远程代理软件,支持加速下载 Docker Hub、GHCR、GitHub 资源。带网页管理后台,可独立分配带鉴权的代理链接。
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## 功能
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- **Docker Hub 代理** - 加速 Docker 镜像拉取
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- **GHCR 代理** - 加速 GitHub Container Registry 镜像
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- **GitHub 代理** - 加速 GitHub 资源、Release 下载
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- **网页管理后台** - 创建/管理代理链接
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- **独立鉴权** - 每个链接有独立的 `ID` + `Token`
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- **速率限制** - 按链接配置请求频率限制
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- **Basic Auth** - 管理后台带密码保护
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## 快速开始
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```bash
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# 编译
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go build -o mirror-proxy ./cmd/main.go
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# 运行(默认 :8080)
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./mirror-proxy
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# 自定义端口
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LISTEN_ADDR=:9090 ./mirror-proxy
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```
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管理后台: http://localhost:8080/admin/
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- 用户名: `admin`
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- 密码: `admin123`
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首次运行自动生成 `config.json`,可修改账号密码。
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## Docker 部署
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### 使用 Docker 直接运行
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```bash
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# 构建镜像
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docker build -t mirror-proxy .
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# 运行容器(首次运行会自动创建 config.json)
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docker run -d \
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--name mirror-proxy \
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-p 8080:8080 \
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-v $(pwd)/config.json:/app/config.json \
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-v $(pwd)/cache:/app/cache \
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--restart unless-stopped \
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mirror-proxy
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```
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### 使用 Docker Compose
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```bash
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# 启动服务
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docker-compose up -d
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# 查看日志
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docker-compose logs -f
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# 停止服务
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docker-compose down
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```
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`docker-compose.yml` 已包含端口映射和卷挂载:
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- `./config.json:/app/config.json` — 配置文件持久化
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- `./cache:/app/cache` — 缓存目录持久化
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### 使用 GHCR 镜像(免构建)
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每次 push 到 `main` 分支或打 `v*` 标签时,会自动构建并推送镜像到 GHCR。
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```bash
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# 拉取最新镜像
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docker pull ghcr.io/${GITHUB_USER}/mirror-proxy:latest
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# 运行
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docker run -d \
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--name mirror-proxy \
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-p 8080:8080 \
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-v $(pwd)/config.json:/app/config.json \
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-v $(pwd)/cache:/app/cache \
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--restart unless-stopped \
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ghcr.io/${GITHUB_USER}/mirror-proxy:latest
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```
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> 将 `${GITHUB_USER}` 替换为你的 GitHub 用户名或组织名。
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## 使用方式
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### 1. Docker Hub / GHCR(daemon.json 方式)
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创建类型为 `docker` 或 `ghcr` 的链接,获取代理地址:
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```
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https://yourdomain.com/{linkID}/{token}/
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```
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编辑 `/etc/docker/daemon.json`:
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```json
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{
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"registry-mirrors": ["https://yourdomain.com/{linkID}/{token}/"]
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}
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```
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重启 Docker:
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```bash
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systemctl restart docker
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```
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之后正常使用即可:
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```bash
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docker pull nginx
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docker pull ghcr.io/owner/repo:tag
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```
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### 2. GitHub 资源
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创建类型为 `github` 的链接:
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```bash
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curl -O https://yourdomain.com/{linkID}/{token}/github.com/user/repo/releases/download/v1.0/app.tar.gz
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```
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## 工作原理
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代理只做两件事:
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1. **路径鉴权** - 验证 URL 中的 `linkID/token`,通过后去掉前缀
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2. **原样转发** - 用 `httputil.ReverseProxy` 转发请求到上游(Docker Hub / GHCR / GitHub)
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对于公开镜像,Docker Hub 返回 401 后,Docker 客户端**自己去 auth.docker.io 获取 token**,不需要代理参与。拿到 token 后再次请求代理,代理把 `Authorization` header 原样转发给 Docker Hub 即可。
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```
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Client → 代理 GET /linkID/token/v2/library/nginx/manifests/latest
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验证 linkID/token,去掉前缀
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→ 转发给 registry-1.docker.io
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Client ← 代理 ← Docker Hub 返回 401 + WWW-Authenticate
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(原样返回,Docker 客户端自己去 auth.docker.io 拿 token)
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Client → 代理 GET /linkID/token/v2/... + Authorization: Bearer xxx
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验证 linkID/token,去掉前缀
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→ 带 Authorization 转发给 Docker Hub
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Client ← 代理 ← Docker Hub 返回镜像数据
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```
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## 目录结构
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```
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mirror-proxy/
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├── cmd/
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│ └── main.go # 入口,路由注册
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├── internal/
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│ ├── config/ # 配置读写(config.json)
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│ ├── auth/ # linkID/token 鉴权 + 速率限制
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│ ├── proxy/ # 反向代理(Docker Hub / GHCR / GitHub)
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│ ├── admin/ # 管理后台 REST API
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│ └── middleware/ # CORS、Basic Auth、Logger
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├── web/
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│ └── static/
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│ └── index.html # 管理后台页面
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├── config.json # 配置文件(自动创建)
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└── go.mod
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```
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## 配置说明
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`config.json`:
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```json
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{
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"listen_addr": ":8080",
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"admin_user": "admin",
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"admin_pass": "your-password",
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"links": {
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"xjhdnkcusbnsjc": {
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"id": "xjhdnkcusbnsjc",
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"name": "Docker Hub 代理",
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"token": "a1b2c3d4...",
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"type": "docker",
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"enabled": true,
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"rate_limit": 100
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}
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}
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}
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```
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| 字段 | 说明 |
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|------|------|
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| `listen_addr` | 监听地址,默认 `:8080` |
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| `admin_user` / `admin_pass` | 管理后台账号密码 |
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| `links` | 代理链接,每个链接有独立 ID + Token |
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| `type` | `docker` / `ghcr` / `github` |
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| `rate_limit` | 每分钟请求数限制,0 为不限 |
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| `enabled` | 是否启用 |
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## Nginx 反向代理配置(HTTPS)
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```nginx
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server {
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listen 443 ssl;
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server_name yourdomain.com;
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ssl_certificate /path/to/cert.pem;
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ssl_certificate_key /path/to/key.pem;
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location / {
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proxy_pass http://127.0.0.1:8080;
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proxy_set_header Host $host;
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proxy_set_header X-Real-IP $remote_addr;
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proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
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proxy_set_header X-Forwarded-Proto $scheme;
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# Docker 需要大文件上传/下载
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client_max_body_size 0;
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proxy_buffering off;
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proxy_request_buffering off;
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}
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}
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```
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## GitHub Actions 自动发布
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项目已配置 GitHub Actions Workflow(`.github/workflows/ghcr.yml`),自动构建多架构镜像并推送到 GHCR。
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**触发条件:**
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- Push 到 `main` / `master` 分支 → 构建并推送 `latest` 标签
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- Push `v*` 标签 → 构建并推送语义化版本标签(如 `v1.2.3`、`v1.2`、`v1`)
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**使用方法:**
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1. 确保仓库 **Settings → Actions → General → Workflow permissions** 中勾选 **Read and write permissions**
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2. 提交代码并推送标签:
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```bash
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git tag v1.0.0
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git push origin v1.0.0
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```
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3. 在仓库 **Packages** 页面查看已发布的镜像
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**支持的架构:** `linux/amd64`, `linux/arm64`
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## 防火墙 / 安全建议
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- 外网部署建议用 Nginx + HTTPS
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- 可配合防火墙限制只有特定 IP 访问管理后台和 `/api/`
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- 定期更换 token(管理后台支持一键重置)
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- 每个用户/团队分配独立链接,方便追溯和管控
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