Problems with subdomains starting with the word "well"

Traefik Traefik v2 (latest)
,
1

I created a subdomain in my hosting company.

I put the label in composer pointing to this domain
("well.rcasistemas.delivery")

And everything seemed to work fine.

But whenever I refreshed the page in the browser, the server directed access to another container, and it seemed to be random.

That makes sense?

2

Hello @nathanarca,

Are you using Traefik Mesh for this? Or did you mean to open this issue on the Traefik Proxy category?

3

Sorry, I changed the category. :slight_smile:

4

Hello @nathanarca,

In that case, when you say that your request is redirected to another container, do you have multiple containers that are serving the same application?

Can you provide your Traefik configuration for us?

5

I have several containers serving the same application, but with their separate volumes.

What directs the client to his container is the subdomain, which in this case started with "well"

The traefik configuration below.

version: "3"

services:
  reverse-proxy:
    image: traefik:v2.0
    command:
      - "--api.insecure=true"
      - "--providers.docker=true"
      - "--providers.docker.exposedbydefault=false"
      - "--entrypoints.web.address=:80"
      - "--entrypoints.websecure.address=:443"
      - "--entrypoints.other.address=:9090"
      - "--certificatesresolvers.myhttpchallenge.acme.httpchallenge=true"
      - "--certificatesresolvers.myhttpchallenge.acme.httpchallenge.entrypoint=web"
      - "--certificatesresolvers.myhttpchallenge.acme.caserver=https://acme-v02.api.letsencrypt.org/directory"
      - "--certificatesresolvers.myhttpchallenge.acme.email=nathanarrudacamara@gmail.com"
      - "--certificatesresolvers.myhttpchallenge.acme.storage=/letsencrypt/acme.json"
    ports:
      - "${SERVER_IP}:80:80"
      - "${SERVER_IP}:443:443"
      - "${SERVER_IP}:9090:9090"
      - "${SERVER_IP}:8080:8080"
    volumes:
      - "./letsencrypt:/letsencrypt"
      - "/var/run/docker.sock:/var/run/docker.sock:ro"
    networks:
      - traefik-public
    restart: always

networks:
    traefik-public:

Little pattern.

6

Hello @nathanarca,

Since you are using the docker provider, can you provide us the labels on the containers that are not routing properly?

7

Of course.

version: "3.7"

services:
  #PHP Service
  app:
    build:
      context: .
      dockerfile: Dockerfile
    image: cloudsigma.com/php
    container_name: well_app
    restart: unless-stopped
    tty: true
    environment:
      SERVICE_NAME: app
      SERVICE_TAGS: dev
    working_dir: /var/www/html/
    volumes:
      - ./app/:/var/www/html/
      - ./php/laravel.ini:/usr/local/etc/php/conf.d/laravel.ini
    networks:
      - app-network
      - traefik-public

  #Nginx Service
  webserver:
    image: nginx:alpine
    container_name: well_webserver
    restart: unless-stopped
    tty: true
    ports:
      - "80"
      - "443"
    volumes:
      - ./app/:/var/www/html/
      - ./nginx/conf.d/:/etc/nginx/conf.d/
    networks:
      - app-network
      - traefik-public
    labels:
      - "traefik.enable=true"
      - traefik.http.routers.well_route.rule=Host(`well.rcasistemas.delivery`)
      - traefik.http.routers.well_route.entrypoints=web
      - traefik.http.middlewares.well_route.redirectscheme.scheme=https
      - traefik.http.routers.well_route.middlewares=well_route
      - traefik.http.routers.well_route-secured.rule=Host(`well.rcasistemas.delivery`)
      - traefik.http.routers.well_route-secured.entrypoints=websecure
      - traefik.http.routers.well_route-secured.tls=true
      - traefik.http.routers.well_route-secured.tls.certresolver=myhttpchallenge
      - traefik.docker.network=traefik-public

  #MySQL Service
  db:
    image: mariadb
    restart: always
    container_name: well_db
    ports:
      - "3306"
    environment:
      - MYSQL_ROOT_HOST=%
      - MYSQL_ROOT_PASSWORD=${MYSQL_ROOT_PASSWORD}
      - MYSQL_USER=laravel
      - MYSQL_PASSWORD=laravel
      - MYSQL_DATABASE=delivery
    volumes:
      - ./database/:/var/lib/mysql/
      - ./mysql/my.cnf:/etc/mysql/my.cnf
    networks:
      - app-network

  #Redis Service

  redis:
    image: "redis:alpine"
    restart: always
    command: "redis-server --appendonly yes"
    container_name: well_redis
    volumes:
      - ./redis:/data
    environment:
      - REDIS_REPLICATION_MODE=master
    networks:
      - app-network

#Docker Networks
networks:
  app-network:
    driver: bridge
  traefik-public:
    external:
      name: traefik-public
8

Hello @nathanarca,

That configuration looks ok from what I can tell. You say that the requests are being routed to another container? what are the labels on the container that are receiving the requests that you don't want?

9

The configuration of the other containers is similar.

The only change I make is to replace that word "well" with anything else.

What I found strange is that with any other word it works perfectly.

But when I create and start the container with this configuration that I went through, and I try to access "well.rcassitemas.delivery" the server is picking up another container at random.