Traefik 2.0 tcp 路由试用

对于tcp 的路由是基于sni （须要tls）可是能够经过统配(*) 解决不试用tls的，固然也能够让Traefik 自动生成tls 证书
如下是测试http 以及mysql 的tcp 路由配置（demo 很简单，就是一个proxy）

环境准备

• docker-compose文件

 

version: '3'

services:

  database:

    image: mysql:5.7.16

    labels:

      - "traefik.tcp.routers.mysql.rule=HostSNI(`*`)"

      - "traefik.tcp.routers.mysql.entrypoints=mysql-default"

    command: --character-set-server=utf8mb4 --collation-server=utf8mb4_unicode_ci

    environment:

      MYSQL_ROOT_PASSWORD: dalongrong

      MYSQL_DATABASE: gogs

      MYSQL_USER: gogs

      MYSQL_PASSWORD: dalongrong

      TZ: Asia/Shanghai

  database2:

    image: mysql:5.7.16

    labels:

      - "traefik.tcp.routers.mysql2.rule=HostSNI(`*`)"

      - "traefik.tcp.routers.mysql2.entrypoints=mysql-default2"

    command: --character-set-server=utf8mb4 --collation-server=utf8mb4_unicode_ci

    environment:

      MYSQL_ROOT_PASSWORD: dalongrong

      MYSQL_DATABASE: app

      MYSQL_USER: app

      MYSQL_PASSWORD: dalongrong

      TZ: Asia/Shanghai

  nginx:

    image: nginx

    labels:

      - "traefik.http.routers.nginx.rule=Host(`dalong.web.localhost`)"

      - "traefik.http.routers.nginx.entrypoints=web"

  reverse-proxy:

    image: traefik:v2.0

    build: ./

    entrypoint: traefik --configfile /traefik.toml

    ports:

      - "80:80"

      - "8090:8080"

      - "3306:3306"

      - "3307:3307"

      - "443:443"

    volumes:

      - /var/run/docker.sock:/var/run/docker.sock

• traefik 配置

[global]

  checkNewVersion = false

  sendAnonymousUsage = false

[entryPoints]

  [entryPoints.web]

    address = ":80"

  [entryPoints.mysql-default]

    address = ":3306" 

  [entryPoints.mysql-default2]

    address = ":3307" 

  [entryPoints.web-nginx]

    address = ":443" 

  [entryPoints.traefik]

    address = ":8080" 

[log]

  level = "DEBUG"

[api]

  insecure = true

  dashboard = true

[ping]

[providers.docker]

  endpoint = "unix:///var/run/docker.sock"

  exposedByDefault = true

[metrics]

  [metrics.prometheus]

• dockerfile

FROM traefik:v2.0

COPY traefik.toml /traefik.toml

• 说明
  tcp 路由配置须要sni，对于没有tls 证书的咱们能够使用* 配置，好比mysql的

 

    labels:

      - "traefik.tcp.routers.mysql2.rule=HostSNI(`*`)"

      - "traefik.tcp.routers.mysql2.entrypoints=mysql-default2"

启动 &&测试

• 启动

docker-compose build 

docker-compose up -d

• 效果

总体界面

 

 

http 路由

 

 

tcp 路由

 

 

• http 测试
  配置hosts 文件
  访问效果

 

 

• tcp 路由测试
  直接使用端口+ ip 方式
  database1
  mysql -uroot -pdalongrong -h127.0.0.1
  效果：

 

 

database2
mysql -uroot -P3307 -pdalongrong -h127.0.0.1

 

 

• prometheus metrics

 

 

说明

以上是一个简单的测试，主要是 须要sni 支持，可是sni 须要tls，实际咱们的链接也须要少有改动，可能四层用haproxy 会更方便点,对于简单，同时数量很少的
四层处理仍是挺不错的

参考资料

https://docs.traefik.io/routing/routers/#configuring-tcp-routers
https://blog.containo.us/back-to-traefik-2-0-2f9aa17be305