Dashboard suddenly unavailable

Traefik Traefik v2 (latest)
1

Hello there,

I'm pretty new on Traefik and I'm following suggested configurations from documentation nor Traefik Labs. My aim is to deploy Traefik on Swarm as a reverse proxy using stacks.

Currently, I've a whoami subdomain working, but not a new subdomain I'ld set online. Moreover, I lost access to the Traefik dashboard... :confused:

Here is my Traefik configuration:

version: '3.8'

services:
  # Traefik
  traefik:
    image: "traefik:v2.4"
    container_name: "traefik"
    # environment:
    #   - "constraint:node==wpg1ihqm8eifunr0okeav9908"
    deploy:
      mode: replicated
      replicas: 1
      placement:
        constraints:
        - node.hostname == clu010001
    command:
      - "--providers.docker=true"
      - "--providers.docker.exposedbydefault=false"
      - "--providers.docker.swarmMode=true"
      
      - "--providers.docker.endpoint=unix:///var/run/docker.sock"

      - "--entrypoints.websecure.address=:443"

      - "--entrypoints.web.address=:80"
      - "--entrypoints.web.http.redirections.entryPoint.to=websecure"
      - "--entrypoints.web.http.redirections.entryPoint.scheme=https"
      - "--entrypoints.web.http.redirections.entrypoint.permanent=true"

      - "--certificatesresolvers.letsencrypt.acme.tlschallenge=true"
      - "--certificatesresolvers.letsencrypt.acme.email=x"
      - "--certificatesresolvers.letsencrypt.acme.storage=/letsencrypt/acme.json"

      - "--api.dashboard=true"
    ports:
      - "80:80"
      - "443:443"
    volumes:
      - "./traefik:/letsencrypt"
      - "/var/run/docker.sock:/var/run/docker.sock:ro"
    labels:
      - "traefik.enable=true"
      - "traefik.http.routers.dashboard.rule=Host(`traefik.x.dev`)"
      - "traefik.http.routers.dashboard.service=api@internal"
      - "traefik.http.routers.dashboard.entrypoints=websecure"
      - "traefik.http.routers.dashboard.tls.certresolver=letsencrypt"
      - "traefik.http.services.dashboard.loadbalancer.server.port=8080"
      # - "traefik.http.routers.dashboard.middlewares=auth"
      # - "traefik.http.middlewares.auth.basicauth.users=admin:x"
      # - "traefik.docker.lbswarm=true"


  # Whoami
  whoami:
    image: "traefik/whoami"
    container_name: "simple-service"
    deploy:
      labels:
        - "traefik.enable=true"
        - "traefik.http.routers.whoami.rule=Host(`whoami.x.dev`)"
        - "traefik.http.routers.whoami.entrypoints=websecure"
        - "traefik.http.routers.whoami.tls.certresolver=letsencrypt"
        - "traefik.http.services.whoami.loadbalancer.server.port=80"

The constraint I've is data on clu010001 is replicated, and on the other nodes on my Swarm cluster, it isn't. My traffic comes on clu010001 as well, which is why Traefik is constraint on it (for certificates + traffic).

Finally, I've this configuration for the new application I'm trying to host.

version: '3.3'

services:
  fireflyiii:
    depends_on:
      - fireflyiiidb
    image: jc5x/firefly-iii:latest
    volumes:
      - firefly_iii_upload:/var/www/html/storage/upload
    env_file: .env_firefly-iii
    deploy:
      labels:
        - "traefik.enable=true"
        - "traefik.http.routers.firefly-iii.rule=Host(`compta.x.dev`)"
        - "traefik.http.routers.firefly-iii.entrypoints=websecure"
        - "traefik.http.routers.firefly-iii.tls.certresolver=letsencrypt"
        - "traefik.http.services.firefly-iii.loadbalancer.server.port=8080"

  fireflyiiidb:
    image: yobasystems/alpine-mariadb:latest
    environment:
      - MYSQL_RANDOM_ROOT_PASSWORD=yes
      - MYSQL_USER=x
      - MYSQL_PASSWORD=x
      - MYSQL_DATABASE=x
    deploy:
      placement:
        constraints:
          - node.hostname == clu010001
    volumes:
      - firefly_iii_db:/var/lib/mysql

volumes:
   firefly_iii_upload:
   firefly_iii_db:

The Traefik logs in info isn't very expressive about traffic issues...

time="2021-03-11T10:36:17Z" level=info msg="Configuration loaded from flags."

And dashboard supposed be accessible at traefik.x.dev/dashboard**/** retrieve a 404 not found error. The application I'm trying to host is also unavailable, but with a Gateway Timeout...

Since Traefik was working until the deployment of my new app, I think there may be a conflict between them, but I don't see it.

Moreover, if you've a configuration to access directly at Traefik's dashboard from traefik.x.dev, without setting /dashboard/, I'll take it too :slight_smile:

Thanks !