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---
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title: 与 Traefik 配合使用
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description: 使用 Traefik 管理 Halo 服务的反向代理
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---
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## Halo 部署
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参见 [使用 Docker Compose 部署](../docker-compose.md)
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:::info
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`「反向代理」` 部分不进行操作，保证 Halo 服务运行无误即可。
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:::
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## 简介
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[Traefik](https://traefik.io/traefik/) 是一款开源的反向代理与负载均衡工具，它监听后端的变化并自动更新服务配置。
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它与传统反向代理最大的区别，是支持声明式的动态路由规则，大大简化网关规则的配置。而且还有诸多实用特性，例如：健康检查、多实例负载均衡、能够实现 Let's Encrypt 证书的自动签发、验证与续期等等。
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## 创建 Traefik
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下面的配置中，创建了 Traefik 实例。并且做了基础的几项配置：
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1. 监听了宿主机的 80、443 端口，并自动将 80 端口的请求重定向到 443 端口。[文档](https://doc.traefik.io/traefik/routing/entrypoints/)
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2. 开启 Docker 服务发现，监听检测 Docker 容器声明的服务关系。[文档](https://doc.traefik.io/traefik/providers/docker/#provider-configuration)
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3. 开启 Traefik Dashboard，建议使用二级域名的形式（示例：`traefik.yourdomain.com`）。[文档](https://doc.traefik.io/traefik/operations/dashboard/#dashboard-router-rule)
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4. 开启证书自动生成，通过 ACME 自动管理 TLS 证书的申请、校验与续期。[文档](https://doc.traefik.io/traefik/https/acme/)
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:::caution
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ACME 证书 (`/acme.json`) 一定要 [持久化](https://doc.traefik.io/traefik/https/acme/#storage)，否则每次重启 Traefik 服务，都会去申请签发证书。可能会触发 Let's
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Encrypt 的 [速率限制](https://letsencrypt.org/zh-cn/docs/rate-limits/)，导致签名的域名一段时间内无法签发新的证书。
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:::
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```yaml {19,31,35,41} showLineNumbers
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version: "3.8"
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networks:
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traefik:
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name: traefik
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attachable: true
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services:
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traefik:
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image: traefik:v2.9
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container_name: traefik
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networks:
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- traefik
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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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- /var/run/docker.sock:/var/run/docker.sock
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- ./acme.json:/acme.json
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command: >
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--api.dashboard=true
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--entrypoints.web.address=:80
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--entrypoints.websecure.address=:443
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--entrypoints.web.http.redirections.entrypoint.to=websecure
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--entrypoints.web.http.redirections.entrypoint.scheme=https
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--providers.docker=true
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--providers.docker.endpoint=unix:///var/run/docker.sock
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--providers.docker.watch=true
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--providers.docker.exposedByDefault=false
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--certificatesResolvers.myresolver.acme.httpChallenge.entryPoint=web
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--certificatesresolvers.myresolver.acme.email=your-mail@mail.com
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labels:
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traefik.enable: "true"
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traefik.docker.network: traefik
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traefik.http.routers.dashboard.rule: Host(`traefik.yourdomain.com`)
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traefik.http.routers.dashboard.tls: "true"
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traefik.http.routers.dashboard.tls.certresolver: myresolver
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traefik.http.routers.dashboard.service: "api@internal"
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traefik.http.routers.dashboard.middlewares: auth
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# 账号密码 admin/P@88w0rd 生成 echo $(htpasswd -nb user password) | sed -e s/\\$/\\$\\$/g
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traefik.http.middlewares.auth.basicauth.users: "admin:$$apr1$$q8q0qpzT$$lvzMP7VYd9EUcG/wkIsAN."
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```
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## 配置 Halo 的反向代理
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这里以最简配置（h2 数据库）Halo 服务的 Docker 配置举例。只需做以下调整：
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1. 顶层 `networks` 中添加了外部网络 `traefik`
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2. `services.halo.networks` 中添加了 `traefik` 网络
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3. `services.halo.labels` 中声明了 Traefik 配置
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1. 路由规则为 `yourdomain.com`
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2. 开启 TLS
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3. 指定了服务端口为 8090
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```yaml {4-5,16,20,25-31} showLineNumbers
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version: "3.8"
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networks:
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traefik:
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external: true
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halo:
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services:
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halo:
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image: halohub/halo:2.12
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container_name: halo
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restart: on-failure:3
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volumes:
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- ./halo2:/root/.halo2
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networks:
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- traefik
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- halo
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command:
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# 外部访问地址，请根据实际需要修改
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- --halo.external-url=https://yourdomain.com
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labels:
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traefik.enable: "true"
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traefik.docker.network: traefik
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traefik.http.routers.halo.rule: Host(`yourdomain.com`)
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traefik.http.routers.halo.tls: "true"
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traefik.http.routers.halo.tls.certresolver: myresolver
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traefik.http.services.halo.loadbalancer.server.port: 8090
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```
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