traefik不尊重前端规则

Question

我正试图在我的docker主机上部署多个应用程序，并让traefik根据主机名将流量路由到不同的应用程序

我正在使用docker compose为我所有的docker集装箱

这是我的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

这是我的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

这是我的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

所以现在我希望traefik基于主机名wpapp1.example.com和wpapp2.example.com进行路由，但traefik是负载平衡流量！！！

因此，当我转到http:/wpapp1.example.com时，traefik正在两个应用程序之间进行负载平衡，其他主机名也是如此。现在确定这里发生了什么，因为我特别添加了traefik.frontend.rule

我是说这到底是怎么回事？我花了几个小时来弄清楚发生了什么，在我发疯之前，我决定找这里的人来帮助我。

Answer 1

将数据库放到另一个网络上。否则，WordPress将对同一docker网络中的两个mysql实例进行RR负载平衡(当您在同一网络上有两个具有相同别名的容器时，这是预期的行为(。您可以使用默认网络：

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