traefik不遵守前端規則

Question

我試圖在我的Docker主機上部署多個應用程序，並讓traefik根據主機名將流量路由到不同的應用程序

我正在對所有Docker容器使用docker-compose

這是我的traeffik.yaml文件

version: '3.5'

services:
  traefik:
    image: traefik
    container_name: traefik
    command: --api --docker
    networks:
      - traefik_network
    ports:
      - "80:80"
      - "8080:8080"
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock

networks:
  traefik_network:
     name: traefik_network

這是我的wpapp1.yaml文件

version: '3.5'

services:
   mysql:
     image: mysql:5.7
     volumes:
       - wpapp1_mysql:/var/lib/mysql
     restart: always
     container_name: wpapp1_mysql
     networks:
       - traefik_network
     environment:
       MYSQL_ROOT_PASSWORD: wpapp1
       MYSQL_DATABASE: wpapp1
       MYSQL_USER: wpapp1
       MYSQL_PASSWORD: wpapp1
   wordpress:
     depends_on:
       - mysql
     image: wordpress:latest
     volumes:
       - wpapp1_wordpress:/var/www/html
     restart: always
     container_name: wpapp1_wordpress
     networks:
       - traefik_network
     labels:
      - "traefik.frontend.rule=Host:wpapp1.example.com"
      - "traefik.port=80"
      - "traefik.docker.network=traefik_network"
     environment:
       WORDPRESS_DB_HOST: mysql:3306
       WORDPRESS_DB_USER: wpapp1
       WORDPRESS_DB_PASSWORD: wpapp1
volumes:
    wpapp1_mysql:
      name: wpapp1_mysql
    wpapp1_wordpress:
      name: wpapp1_wordpress
networks:
    traefik_network:
      external:
         name: traefik_network

這是我的wpapp2.yaml文件

version: '3.5'

services:
   mysql:
     image: mysql:5.7
     volumes:
       - wpapp2_mysql:/var/lib/mysql
     restart: always
     container_name: wpapp2_mysql
     networks:
       - traefik_network
     environment:
       MYSQL_ROOT_PASSWORD: wpapp2
       MYSQL_DATABASE: wpapp2
       MYSQL_USER: wpapp2
       MYSQL_PASSWORD: wpapp2
   wordpress:
     depends_on:
       - mysql
     image: wordpress:latest
     volumes:
       - wpapp2_wordpress:/var/www/html
     restart: always
     container_name: wpapp2_wordpress
     networks:
       - traefik_network
     labels:
      - "traefik.frontend.rule=Host:wpapp2.example.com"
      - "traefik.port=80"
      - "traefik.docker.network=traefik_network"
     environment:
       WORDPRESS_DB_HOST: mysql:3306
       WORDPRESS_DB_USER: wpapp2
       WORDPRESS_DB_PASSWORD: wpapp2
volumes:
    wpapp2_mysql:
      name: wpapp2_mysql
    wpapp2_wordpress:
      name: wpapp2_wordpress
networks:
    traefik_network:
      external:
         name: traefik_network

所以現在我期待traefik路由基於主機名wpapp1.example.com和wpapp2.example.com但traefik的負載均衡流量！

因此，當我轉到http:/wpapp1.example.com ，traefik會在兩個應用程序之間進行負載http:/wpapp1.example.com ，其他主機名也是如此。 現在確定這里發生了什么，因為我專門添加了traefik.frontend.rule

我的意思是這到底是怎么回事？ 我花了幾個小時弄清楚發生了什么事，在發瘋之前，我決定在這里尋求一些幫助。

Answer 1

將數據庫放在其他網絡上。 否則，WordPress將RR負載均衡到同一docker網絡中的兩個mysql實例（當您在同一網絡上有兩個具有相同別名的容器時，這是預期的行為）。 您可以使用默認網絡來做到這一點：

version: '3.5'

services:
   mysql:
     image: mysql:5.7
     volumes:
       - mysql:/var/lib/mysql
     restart: unless-stopped
     networks:
       - db
     environment:
       MYSQL_ROOT_PASSWORD: wpapp
       MYSQL_DATABASE: wpapp
       MYSQL_USER: wpapp
       MYSQL_PASSWORD: wpapp
   wordpress:
     depends_on:
       - mysql
     image: wordpress:latest
     volumes:
       - wordpress:/var/www/html
     restart: unless-stopped
     networks:
       - traefik
       - db
     labels:
      - "traefik.frontend.rule=Host:wpapp1.example.com"
      - "traefik.port=80"
      - "traefik.docker.network=traefik_network"
     environment:
       WORDPRESS_DB_HOST: mysql:3306
       WORDPRESS_DB_USER: wpapp
       WORDPRESS_DB_PASSWORD: wpapp
volumes:
    mysql:
    wordpress:
networks:
    db:
    traefik:
      external:
         name: traefik_network