Run two wordpress Docker containers with Traefik?-CodePudding

I'm no specialist, but I followed this tutorial by Thibaut Devereaux (using Traefik:v2.2 as he does), and it works perfectly for the first wordpress instance. However, I can't get two wordpress sites to run on my Ubuntu server, even though Traefik should handle multiple services automatically. When I run docker-compose up -d on the second yaml, both sites are flat. When I shut down the second service, the first site works again.

I read everything available and followed the suggestion here, which led me to rename the db and many other things in the second wordpress yaml. But no joy. I assume there's something wrong in the second yaml, but it could also be the folder structure or an adjustment in Traefik itself.

My folder structure is like this:

home
  -site1
    -wordpress
  -site2
    -wordpress

The docker-compose.yml for site1 is this:

version: '3'

networks:
  # enable connection with Traefik
  traefik:
    external: true
  # network for the app
  backend:

services:

  wordpress:
    build:
      # call the Dockerfile in ./wordpress
      context: ./wordpress
    restart: always
    logging:
      options:
        max-size: "10m"
        max-file: "3"
    environment:
      # Connect WordPrerss to the database
      WORDPRESS_DB_HOST: db:3306
      WORDPRESS_DB_USER: wordpressuser
      WORDPRESS_DB_PASSWORD: PWD
      WORDPRESS_DB_NAME: wordpressdb
    volumes:
      # save the content of WordPress an enable local modifications
      - ./wordpress/data:/var/www/html
    networks:
      - traefik
      - backend
    depends_on:
        - db
        - redis
    labels:
      # The labels are usefull for Traefik only
      - "traefik.enable=true"
      - "traefik.docker.network=traefik"
      # Get the routes from http
      - "traefik.http.routers.wordpresscp.rule=Host(`MYSITE.org`)"
      - "traefik.http.routers.wordpresscp.entrypoints=web"
      # Redirect these routes to https
      - "traefik.http.middlewares.redirect-to-https.redirectscheme.scheme=https"
      - "traefik.http.routers.wordpresscp.middlewares=redirect-to-https@docker"
      # Get the routes from https
      - "traefik.http.routers.wordpresscp-secured.rule=Host(`MYSITE.org`)"
      - "traefik.http.routers.wordpresscp-secured.entrypoints=web-secure"
      # Apply autentificiation with http challenge
      - "traefik.http.routers.wordpresscp-secured.tls=true"
      - "traefik.http.routers.wordpresscp-secured.tls.certresolver=myhttpchallenge"

  db:
    # this is the database used by Wordpress
    image: mysql:5.7
    restart: always
    logging:
      options:
        max-size: "10m"
        max-file: "3"
    environment:
      # Connect WordPrerss to the database
      MYSQL_DATABASE: wordpressdb
      MYSQL_USER: wordpressuser
      MYSQL_PASSWORD: PWD2
      MYSQL_RANDOM_ROOT_PASSWORD: '1'
    volumes:
      # Persist the database on disk
      - ./db:/var/lib/mysql
    networks:
      - backend


  redis:
    image: redis:6
    restart: always
    logging:
      options:
        max-size: "10m"
        max-file: "3"
    ports:
      - "6378:6378"
    networks:
      - backend
    # launch Redis in cache mode with :
    #  - max memory up to 50% of your RAM if needed (--maxmemory 512mb)
    #  - deleting oldest data when max memory is reached (--maxmemory-policy allkeys-lru)
    entrypoint: redis-server --maxmemory 512mb -maxmemory-policy allkeys-lru

The docker-compose.yml for site2 is this:

version: '3'

networks:
  # enable connection with Traefik
  traefik:
    external: true
  # network for the app
  backend:

services:

  wordpress2:
    build:
      # call the Dockerfile in ./wordpress
      context: ./wordpress
    restart: always
    logging:
      options:
        max-size: "10m"
        max-file: "3"
    environment:
      # Connect WordPress to the database
      WORDPRESS_DB_HOST: db2:3306
      WORDPRESS_DB_USER: user
      WORDPRESS_DB_PASSWORD: PWB2
      WORDPRESS_DB_NAME: wordpressdb2
    volumes:
      # save the content of WordPress an enable local modifications
      - ./wordpress/data:/var/www/html
    networks:
      - traefik
      - backend
    depends_on:
        - db2
        - redis
    labels:
      # The labels are usefull for Traefik only
      - "traefik.enable=true"
      - "traefik.docker.network=traefik"
      # Get the routes from http
      - "traefik.http.routers.wordpresscp.rule=Host(`MYSITE2.org`)"
      - "traefik.http.routers.wordpresscp.entrypoints=web"
      # Redirect these routes to https
      - "traefik.http.middlewares.redirect-to-https.redirectscheme.scheme=https"
      - "traefik.http.routers.wordpresscp.middlewares=redirect-to-https@docker"
      # Get the routes from https
      - "traefik.http.routers.wordpresscp-secured.rule=Host(`MYSITE2.org`)"
      - "traefik.http.routers.wordpresscp-secured.entrypoints=web-secure"
      # Apply autentificiation with http challenge
      - "traefik.http.routers.wordpresscp-secured.tls=true"
      - "traefik.http.routers.wordpresscp-secured.tls.certresolver=myhttpchallenge"

  db2:
    # this is the database used by Wordpress
    image: mysql:5.7
    restart: always
    logging:
      options:
        max-size: "10m"
        max-file: "3"
    environment:
      # Connect WordPrerss to the database
      MYSQL_DATABASE: wordpressdb2
      MYSQL_USER: USER
      MYSQL_PASSWORD: PWD2
      MYSQL_RANDOM_ROOT_PASSWORD: '1'
    volumes:
      # Persist the database on disk
      - ./db2:/var/lib/mysql
    networks:
      - backend


  redis:
    image: redis:6
    restart: always
    logging:
      options:
        max-size: "10m"
        max-file: "3"
    ports:
      - "6378:6378"
    networks:
      - backend
    # launch Redis in cache mode with :
    #  - max memory up to 50% of your RAM if needed (--maxmemory 512mb)
    #  - deleting oldest data when max memory is reached (--maxmemory-policy allkeys-lru)
    entrypoint: redis-server --maxmemory 512mb -maxmemory-policy allkeys-lru

Can anyone spot the mistake? Maybe there's something I need to change on the Traefik compose file? I am sure that a correct file based on the model by Devereaux would be useful to many people...

thanks, Brian Holmes

CodePudding user response：

The names of the Routers are conflicting. In the second website you should use different names.

For example:

traefik.http.routers.wordpresscp should become traefik.http.routers.wordpresscp2

traefik.http.routers.wordpresscp-secured should become traefik.http.routers.wordpresscp-secured2