I cannot use WordPress on Docker with Traefik

Milano2022 · September 3, 2022, 10:47am

Problematic:

I cannot use WordPress on Docker with Traefik. WordPress communicates a lot with the servers of the Word Press organization. For example when I open the WordPress admin page it looks for events near my city. WordPress also uses CURL and if there are strange answers it crashes.
I think Traefik blocks Wordpress. Does anyone on this forum use WordPress with Traefik? How did you solve this problem?
I saw that there is a specific WordPress image for Docker but I don't want to use it because the configuration I create on this CMS I want to save and reproduce for different sites. I prefer to manage the cms php files directly inside a folder that defines a Docker volume.

Error description:

I can install WordPress by manually adding wp-config.php (the cms doesn't do this for me because it can't). When I log into the control panel I get these problems:
1) Application is very slow;
2) When logging into the control panel I get this error:

Warning: Si è verificato un errore inaspettato. C'è qualche cosa di sbagliato con WordPress.org o con la configurazione di questo server. Se continui ad avere problemi, chiedi aiuto sul forum di supporto. (WordPress non può stabilire una connessione sicura a WordPress.org. Contatta l’amministratore del server.) in /var/www/html/it/wp-admin/includes/translation-install.php on line 68

Project:

version: "3.9"

services:
  traefik:
    build: ./traefik
    image: image-traefik-eb:v.1.0
    command:
      - --log.level=INFO
      - --log.filePath=/data-log/traefik.log
      - --log.format=json
      - --accesslog=true
      - --api.insecure=false
      - --api.dashboard=true
      - --providers.docker
      - --providers.docker.exposedbydefault=false
      - --entrypoints.web.address=:80
      - --entrypoints.web.http.redirections.entryPoint.to=websecure
      - --entrypoints.web.http.redirections.entrypoint.scheme=https
      - --entrypoints.websecure.address=:443
      - --entrypoints.websecure.http.tls=true
      - --entrypoints.websecure.http.tls.certresolver=leresolver
      - --certificatesresolvers.leresolver.acme.tlsChallenge=true
      - --certificatesresolvers.leresolver.acme.email=...
      - --certificatesresolvers.leresolver.acme.caServer=https://acme-staging-v02.api.letsencrypt.org/directory
      - --certificatesresolvers.leresolver.acme.storage=/letsencrypt/acme.json
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock:ro
      - ./volumes/data-letsencrypt/:/letsencrypt
      - ./volumes/data-log/:/data-log/
    ports:
      - 80:80
      - 443:443
    labels:
      traefik.enable: true
      traefik.http.routers.dashboard.rule: Host(`www.traefik.localhost`,`www.traefik.localhost`)
      traefik.http.routers.dashboard.service: api@internal
      traefik.http.routers.dashboard.middlewares: auth
      traefik.http.middlewares.auth.basicauth.users: ...:...
      traefik.http.routers.unmatchedwww.rule: HostRegexp(`{name:^www\..*}`) 
      traefik.http.routers.unmatchedwww.service: noop@internal
      traefik.http.routers.unmatchedwww.priority: 2
      traefik.http.routers.matchlast.rule: PathPrefix(`/`)
      traefik.http.routers.matchlast.priority: 1
      traefik.http.routers.matchlast.middlewares: addwww
      traefik.http.middlewares.addwww.redirectregex.regex: ^https://(?:www\.)?(.*)
      traefik.http.middlewares.addwww.redirectregex.replacement: https://www.$${1}
    restart: always
    networks:
      - eb
      - traefik-network

  mysql:
    build: ./mysql
    image: image-mysql-eb:v.1.0
    restart: always
    environment:
      MYSQL_ROOT_PASSWORD: ...
      MYSQL_DATABASE: ...
      MYSQL_USER: ...
      MYSQL_PASSWORD: ...
    depends_on:
      - traefik
    volumes:
      - mysql-volume:/var/lib/mysql
    networks:
      - eb

  phpmyadmin:
    build: ./phpmyadmin
    image: image-phpmyadmin-eb:v.1.0
    restart: always
    environment:
      PMA_HOST: mysql
    depends_on:
      - traefik
      - mysql
    labels:
      traefik.enable: 'true'
      traefik.http.services.phpmyadmin.loadbalancer.server.port: 80
      traefik.http.services.phpmyadmin.loadbalancer.server.scheme: http
      traefik.http.routers.phpmyadmin.rule: Host(`www.phpmyadmin.localhost`)
      traefik.http.routers.phpmyadmin.tls.domains[0].main: phpmyadmin.localhost
      traefik.http.routers.phpmyadmin.tls.domains[0].sans: www.phpmyadmin.localhost
      traefik.http.routers.phpmyadmin.tls.certresolver: leresolver
    networks:
      - eb

  php-apache-blog:
    build: ./php-apache-blog
    image: image-php-apache-blog-eb:v.1.0
    restart: always
    depends_on:
      - mysql
    volumes:
      - ./volumes/data-php-blog:/var/www/html/
    depends_on:
      - traefik
      - mysql
    labels:
      traefik.enable: 'true'
      traefik.http.services.php-apache-blog.loadbalancer.server.port: 80
      traefik.http.services.php-apache-blog.loadbalancer.server.scheme: http
      traefik.http.routers.php-apache-blog.rule: Host(`www.blog.localhost`)
      traefik.http.routers.php-apache-blog.tls.domains[0].main: blog.localhost
      traefik.http.routers.php-apache-blog.tls.domains[0].sans: www.blog.localhost
      traefik.http.routers.php-apache-blog.tls.certresolver: leresolver
    networks:
      - eb

volumes:
  mysql-volume:
  
networks:
  eb:
    internal: true
  traefik-network:

Side note 1:

The project that I show has a problem that this forum does not know how to solve but I do not think this problem is the cause of the malfunction.

I report the link for concern:

Side note 2:

If I remove the Traefik proxy from my services everything works perfectly so I am sure that the malfunctions depend exclusively on Traefik.

bluepuma77 · September 9, 2022, 3:50pm

Traefik enables you to route incoming requests to your Docker containers. If you run Wordpress in a container and it has issues with outgoing connections via curl, then I don't see how this is related to Traefik.

If you do have outgoing connection problems, please check the IP addresses within Docker. There are default networks a container is attached to and potential own created Docker networks with IP addresses and also the servers IP addresses. We had issues with overlapping of IP configuration before.

Milano2022 · September 11, 2022, 9:29am

I don't know how to solve this problem but I assure you that if I remove Traefik from my Docker Compose configuration, Wordpress works perfectly.

bluepuma77 · September 13, 2022, 5:10pm

I would use a dedicated network for service routing, add to service.traefik

providers.docker.network=traefik-network

and attach all relevant web-containers to it (or just use network eb).

bluepuma77 · September 13, 2022, 5:14pm

A full example, uses:

port :80 to redirect to :443 to force TLS/SSL
:8080/dashboard/ for the Traefik dashboard (user/pass: test/test)
network traefik to route requests from Traefik to service
example service whoami.example.com with LetsEncrypt TLS/SSL
volume to store LetsEncrypt certificates

You probably need to docker create network proxy if you are not running Swarm and adapt the email and subdomain to run the example.

# docker-compose.yml
version: '3.8'

services:
  traefik:
    image: traefik:v2.8.4
    container_name: traefik
    ports:
      - target: 80
        published: 80
        mode: host
      - target: 443
        published: 443
        mode: host
      - target: 8080
        published: 8080
        mode: host
    command:
      - --providers.docker.exposedByDefault=false  
      - --providers.docker.network=proxy
      - --entrypoints.web.address=:80
      - --entrypoints.web.http.redirections.entryPoint.to=websecure
      - --entrypoints.web.http.redirections.entryPoint.scheme=https
      - --entrypoints.websecure.address=:443
      - --entrypoints.websecure.http.tls.certResolver=leresolver
      - --entrypoints.traefik.address=:8080
      - --certificatesresolvers.leresolver.acme.email=user@example.com
      - --certificatesresolvers.leresolver.acme.storage=/certificates/acme.json
      - --certificatesresolvers.leresolver.acme.httpchallenge.entrypoint=web
      - --log.level=DEBUG
      - --accesslog=true
      - --api.dashboard=true
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock:ro
      - traefik-certificates:/certificates
    networks:
      - proxy
    labels:
      - traefik.enable=true
      - traefik.http.routers.dashboard.rule=PathPrefix(`/api`) || PathPrefix(`/dashboard`)
      - traefik.http.routers.dashboard.entrypoints=traefik
      - traefik.http.routers.dashboard.service=api@internal
      - traefik.http.routers.dashboard.middlewares=dashboard-auth
      - 'traefik.http.middlewares.dashboard-auth.basicauth.users=test:$apr1$H6uskkkW$IgXLP6ewTrSuBkTrqE8wj/'

  whoami:
    image: traefik/whoami:v1.8.1
    container_name: whoami
    networks:
      - proxy
    labels:
      - 'traefik.enable=true'
      - 'traefik.http.services.whoami.loadbalancer.server.port=80'
      - 'traefik.http.routers.whoami.rule=Host(`whoami.example.com`)'
      - 'traefik.http.routers.whoami.entrypoints=websecure'
      - 'traefik.http.routers.whoami.tls=true'
      - 'traefik.http.routers.whoami.tls.certresolver=leresolver'

networks:
  proxy:
    name: proxy
    driver: overlay
    attachable: true

volumes:
  traefik-certificates:
    name: traefik-certificates

Milano2022 · September 23, 2022, 1:59pm

Thanks for your code. I don't use Docker Swarm, I didn't know it but it seems very interesting because it is a tool that allows you to combine the performances of different physical machines. Docker swarm may need me in the future.

I have tested your Traefik code with Wordpress. Below you will find the complete code.

version: '3.8'

services:
  traefik:
    build: ./traefik
    image: image-traefik-proxy:v.1.0
    container_name: container-traefik-proxy
    ports:
      - target: 80
        published: 80
        mode: host
      - target: 443
        published: 443
        mode: host
      - target: 8080
        published: 8080
        mode: host
    command:
      - --providers.docker.exposedByDefault=false  
      - --providers.docker.network=proxy
      - --entrypoints.web.address=:80
      - --entrypoints.web.http.redirections.entryPoint.to=websecure
      - --entrypoints.web.http.redirections.entryPoint.scheme=https
      - --entrypoints.websecure.address=:443
      - --entrypoints.websecure.http.tls.certResolver=leresolver
      - --entrypoints.traefik.address=:8080
      - --certificatesresolvers.leresolver.acme.email=user@example.com
      - --certificatesresolvers.leresolver.acme.storage=/certificates/acme.json
      - --certificatesresolvers.leresolver.acme.httpchallenge.entrypoint=web
      - --log.level=DEBUG
      - --accesslog=true
      - --api.dashboard=true
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock:ro
      - traefik-certificates:/certificates
    networks:
      - proxy
    labels:
      # http://localhost:8080/dashboard/
      - traefik.enable=true
      - traefik.http.routers.dashboard.rule=PathPrefix(`/api`) || PathPrefix(`/dashboard`)
      - traefik.http.routers.dashboard.entrypoints=traefik
      - traefik.http.routers.dashboard.service=api@internal
      - traefik.http.routers.dashboard.middlewares=dashboard-auth
      - 'traefik.http.middlewares.dashboard-auth.basicauth.users=test:$apr1$H6uskkkW$IgXLP6ewTrSuBkTrqE8wj/'

  whoami:
    image: traefik/whoami:v1.8.1
    container_name: whoami
    networks:
      - proxy
    labels:
      - 'traefik.enable=true'
      - 'traefik.http.services.whoami.loadbalancer.server.port=80'
      - 'traefik.http.routers.whoami.rule=Host(`www.whoami.localhost`)'
      - 'traefik.http.routers.whoami.entrypoints=websecure'
      - 'traefik.http.routers.whoami.tls=true'
      - 'traefik.http.routers.whoami.tls.certresolver=leresolver'

  mysql:
    build: ./mysql
    image: image-mysql-proxy:v.1.0
    container_name: container-mysql-proxy
    restart: always
    networks:
      - proxy
    labels:
      - 'traefik.enable=true'
      - 'traefik.http.services.mysql.loadbalancer.server.port=80'
      - 'traefik.http.routers.mysql.rule=Host(`www.mysql.localhost`)'
      - 'traefik.http.routers.mysql.entrypoints=websecure'
      - 'traefik.http.routers.mysql.tls=true'
      - 'traefik.http.routers.mysql.tls.certresolver=leresolver'
    environment:
      MYSQL_ROOT_PASSWORD: root_password
      MYSQL_DATABASE: database_name
      MYSQL_USER: user_name
      MYSQL_PASSWORD: password
    volumes:
      - mysql-volume:/var/lib/mysql
      
  php-apache:
    build: ./php-apache
    image: image-php-apache-proxy:v.1.0
    container_name: container-php-apache-proxy
    restart: always
    networks:
      - proxy
    labels:
      - 'traefik.enable=true'
      - 'traefik.http.services.php-apache.loadbalancer.server.port=80'
      - 'traefik.http.routers.php-apache.rule=Host(`www.blog.localhost`)'
      - 'traefik.http.routers.php-apache.entrypoints=websecure'
      - 'traefik.http.routers.php-apache.tls=true'
      - 'traefik.http.routers.php-apache.tls.certresolver=leresolver'
    user: ${CURRENT_UID}
    depends_on:
      - mysql
    volumes:
      - ./volumes/data-php:/var/www/html
      - ./volumes/data-php-config/uploads.ini:/usr/local/etc/php/conf.d/uploads.ini
      
  phpmyadmin:
    build: ./phpmyadmin
    image: image-phpmyadmin-proxy:v.1.0
    container_name: container-phpmyadmin-proxy
    restart: always
    networks:
      - proxy
    labels:
      - 'traefik.enable=true'
      - 'traefik.http.services.phpmyadmin.loadbalancer.server.port=80'
      - 'traefik.http.routers.phpmyadmin.rule=Host(`www.phpmyadmin.localhost`)'
      - 'traefik.http.routers.phpmyadmin.entrypoints=websecure'
      - 'traefik.http.routers.phpmyadmin.tls=true'
      - 'traefik.http.routers.phpmyadmin.tls.certresolver=leresolver'
    environment:
      PMA_HOST: mysql
    depends_on:
      - mysql

networks:
  proxy:
    name: proxy
    driver: overlay
    attachable: true

volumes:
  traefik-certificates:
    name: traefik-certificates
  mysql-volume:

#
FROM mysql:8.0.30-debian
#
FROM php:7.4-apache
RUN docker-php-ext-install mysqli && docker-php-ext-enable mysqli
#
FROM phpmyadmin:5.2.0
#
FROM traefik:v2.8.4

cd /.../Docker-Wordpress-MySQL-Traefik-01
docker compose down --volumes
docker create network proxy
CURRENT_UID=$(id -u):$(id -g) docker compose up -d --build

Wordpress is installed but it does not work correctly in fact I cannot create the articles. Wordpress tells me that I may be offline. Without Traefik I can create and delete articles.
In your code I find other problems that are not present in my code but I think they can be fixed by adding the missing rules so I am not worried:

Redirect to www
The dashboard is not accessible with test / test
The dashboard is not reachable on https
The certificates are not accessible

See you

CMS: Scarica | WordPress.org Italia

Milano2022 · September 25, 2022, 11:19am

Thank you very much, your code is gorgeous. All solved, I had some problems because php plugins were missing, Traefik works perfectly. I haven't had time to try it on the real server yet, but I'll be doing it soon. Everything works perfectly locally. You were number 1!

Milano2022 · September 25, 2022, 3:46pm

I noticed some differences between your code and mine. Except for the 'providers.docker.network' string that I added, should the other lines of code be added to my code?
I solved with 'providers.docker.network' and with your way of defining the network.

    image: traefik:v2.8.4

    ports:
      - target: 80
        published: 80
        mode: host
      - target: 443
        published: 443
        mode: host
      - target: 8080
        published: 8080
        mode: host

    networks:
      - proxy

    command:
      - --providers.docker.network=proxy
      - --entrypoints.traefik.address=:8080
      - --certificatesresolvers.leresolver.acme.httpchallenge.entrypoint=web

    volumes:
      - traefik-certificates:/certificates

    labels:
      - traefik.http.routers.dashboard.rule=PathPrefix(`/api`) || PathPrefix(`/dashboard`)
      - traefik.http.routers.dashboard.entrypoints=traefik

networks:
  proxy:
    name: proxy
    driver: overlay
    attachable: true

volumes:
  traefik-certificates:
    name: traefik-certificates

system · September 28, 2022, 3:47pm

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I cannot use WordPress on Docker with Traefik

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