Traefik 似乎忽略了路由器的规则错误？

分类：编程问答

如何解决Traefik 似乎忽略了路由器的规则错误？

今天，我正在寻求您的帮助，因为我在使用 Traefik (v2.4) 时遇到了路由问题，我觉得这是后者的一个错误。

我在 Debian 10 (Buster) 上使用 Docker v20.10.2 和 Docker Compose v1.25.0

我正在寻找这些重定向：

www.mywebsite.com
    |____main-wordpress:80
www.mywebsite.com/blog
    |____blog-wordpress:80

所以我有一个 docker-compose.yml 像这样组成（摘录）：

---
version: '2.4'

services:

  # *---------------------------*
  # | WordPress (for main site) |
  # *---------------------------*
  main-wordpress:
    image: wordpress:5.6
    hostname: main-wordpress
    environment:
      - WORDPRESS_DB_HOST=main-mysql
      - WORDPRESS_DB_USER=${MAIN_MYSQL_USER}
      - WORDPRESS_DB_PASSWORD=${MAIN_MYSQL_PASSWORD}
      - WORDPRESS_DB_NAME=${MAIN_MYSQL_DATABASE}
      - WORDPRESS_TABLE_PREFIX=wp_
    volumes:
      - ./volumes/wordpress/main:/var/www/html/
      - ./volumes/wordpress/php.ini:/usr/local/etc/php/conf.d/01_user.ini
    expose:
      - 80
    depends_on:
       - main-mysql
    labels:
      - "traefik.enable=true"
      # Redirect HTTP ➔ HTTPS
      - "traefik.http.routers.main-wordpress-web.rule=(HostHeader(`www.mywebsite.com`) || HostHeader(`mywebsite.com`))"
      - "traefik.http.routers.main-wordpress-web.priority=1"
      - "traefik.http.routers.main-wordpress-web.entrypoints=web"
      - "traefik.http.middlewares.redirect-to-https.redirectscheme.scheme=https"
      - "traefik.http.middlewares.redirect-to-https.redirectscheme.permanent=true"
      # Route : HTTPS ➔ HTTP (WordPress)
      - "traefik.http.routers.main-wordpress-websecure.rule=(HostHeader(`www.mywebsite.com`) || HostHeader(`mywebsite.com`))"
      - "traefik.http.routers.main-wordpress-websecure.priority=1"
      - "traefik.http.services.webapp.loadbalancer.server.port=80"
      - "traefik.http.routers.main-wordpress-websecure.entrypoints=websecure"
      - "traefik.http.routers.main-wordpress-websecure.tls.certresolver=letsencrypt-1"
      # Enable "middlewares"
      - "traefik.http.routers.main-wordpress-web.middlewares=redirect-to-https"
    restart: unless-stopped

  # *-----------------------*
  # | WordPress (for /blog) |
  # *-----------------------*
  blog-wordpress:
    image: wordpress:4.9.8
    hostname: blog-wordpress
    environment:
      - WORDPRESS_DB_HOST=blog-mysql
      - WORDPRESS_DB_USER=${BLOG_MYSQL_USER}
      - WORDPRESS_DB_PASSWORD=${BLOG_MYSQL_PASSWORD}
      - WORDPRESS_DB_NAME=${BLOG_MYSQL_DATABASE}
      - WORDPRESS_TABLE_PREFIX=wp_
    volumes:
      - ./volumes/wordpress/blog/:/var/www/html/
      - ./volumes/wordpress/php.ini:/usr/local/etc/php/conf.d/01_user.ini
      - ./volumes/wordpress/blog/.htaccess:/var/www/html/.htaccess
    expose:
      - 80
    depends_on:
       - blog-mysql
    labels:
      - "traefik.enable=true"
      # Redirect HTTP ➔ HTTPS
      - "traefik.http.routers.blog-wordpress-web.rule=(HostHeader(`www.mywebsite.com`) || HostHeader(`mywebsite.com`)) && PathPrefix(`/blog`)"
      - "traefik.http.routers.blog-wordpress-web.priority=10000"
      - "traefik.http.routers.blog-wordpress-web.entrypoints=web"
      - "traefik.http.middlewares.redirect-to-https.redirectscheme.scheme=https"
      - "traefik.http.middlewares.redirect-to-https.redirectscheme.permanent=true"
      # Route : HTTPS ➔ HTTP (WordPress)
      - "traefik.http.routers.blog-wordpress-websecure.rule=(HostHeader(`www.mywebsite.com`) || HostHeader(`mywebsite.com`)) && PathPrefix(`/blog`)"
      - "traefik.http.routers.blog-wordpress-websecure.priority=10000"
      - "traefik.http.services.webapp.loadbalancer.server.port=80"
      - "traefik.http.routers.blog-wordpress-websecure.entrypoints=websecure"
      - "traefik.http.routers.blog-wordpress-websecure.tls.certresolver=letsencrypt-1"
      # Enable "middlewares"
      - "traefik.http.routers.blog-wordpress-web.middlewares=redirect-to-https"
    restart: unless-stopped

  # *-------------------------*
  # | Traefik (reverse-proxy) |
  # *-------------------------*
  traefik:
      image: traefik:2.4
      hostname: traefik
      command:
        - "--api=true"
        - "--api.dashboard=true"
        - "--providers.docker.endpoint=unix:///var/run/docker.sock"
        - "--providers.docker.exposedbydefault=false"
        # Entry points
        - "--entrypoints.web.address=:80"
        - "--entrypoints.websecure.address=:443"
        # Access logs
        - "--accesslog=true"
        - "--accesslog.filepath=/access.log"
        - "--accesslog.bufferingsize=200"
        # ACME (Let's Encrypt)
        - "--certificatesresolvers.letsencrypt-1.acme.httpchallenge=true"
        - "--certificatesresolvers.letsencrypt-1.acme.httpchallenge.entrypoint=web"
        - "--certificatesresolvers.letsencrypt-1.acme.email=${ACME_EMAIL}"
        - "--certificatesresolvers.letsencrypt-1.acme.storage=/letsencrypt/acme.json"
        - "--certificatesresolvers.letsencrypt-1.acme.caServer=https://acme-staging-v02.api.letsencrypt.org/directory" # For DEV purpose
        - "--log.level=DEBUG" # For DEBUG purpose
      ports:
        - '80:80'
        - '443:443'
      labels:
        - "traefik.enable=true"
        # Route : HTTPS ➔ HTTP (Traefik itself)
        - "traefik.http.routers.traefik-websecure.rule=(HostHeader(`www.mywebsite.com`) || HostHeader(`mywebsite.com`)) && (PathPrefix(`/api`) || PathPrefix(`/dashboard/`))"
        - "traefik.http.routers.traefik-websecure.service=api@internal"
        - "traefik.http.routers.traefik-websecure.entrypoints=websecure"
        - "traefik.http.routers.traefik-websecure.tls.certresolver=letsencrypt-1"
        - "traefik.http.middlewares.traefik-auth.basicAuth.users=${TRAEFIK_DASHBOARD_AUTH}"
        # Redirect HTTP ➔ HTTPS
        - "traefik.http.routers.traefik-web.rule=(HostHeader(`www.mywebsite.com`) || HostHeader(`mywebsite.com`)) && (PathPrefix(`/api`) || PathPrefix(`/dashboard/`))"
        - "traefik.http.routers.traefik-web.entrypoints=web"
        - "traefik.http.middlewares.redirect-to-https.redirectscheme.scheme=https"
        - "traefik.http.middlewares.redirect-to-https.redirectscheme.permanent=true"
        # Enable "middlewares"
        - "traefik.http.routers.traefik-websecure.middlewares=traefik-auth"
        - "traefik.http.routers.traefik-web.middlewares=redirect-to-https"
      volumes:
        - /var/run/docker.sock:/var/run/docker.sock:ro
        - ./volumes/traefik-certificates:/letsencrypt
        - ./volumes/traefik-access.log:/access.log
      restart: unless-stopped

当只有一个 WordPress 正在使用时，一切正常，路由按预期完成。

另一方面，当两个 WordPress 都在运行时，Traefik 在两者之间做一种“负载平衡”，就好像它们在每个之上运行一样其他。 我查看了 Traefik 的访问日志，这正是发生的事情，请求在两个容器之间拆分，而不管原始 URL 是什么。

我不理解这种行为，尽管我根据文档和规则对我来说很好定义了避免这种行为的优先级。

你认为我错过了什么吗？我一直在寻找 2 天，但我没有看到：/

感谢那些帮助我解决这个问题的人:)

解决方法

最后，我从 GitHub 上的 Kevin Pollet 那里得到了解决方案： solution from GitHub

为了简单起见，就我而言，我为两个 WordPress 使用相同的 Web 应用程序，因此 Traefik 在这种情况下进行了平衡。

为了阻止这种行为，制作两个不同的网络应用程序就足够了。从那以后，一切都按预期进行。

如果其他人有同样的问题......

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