Duplicate HTTP services with swarm

Traefik Traefik v3 (latest)
1

Dear community,

I use traefik with docker swarm. This is working great, but going into the web UI I realize that I have duplicate config for the same service.

Let look my portainer :

image
image1472×178 3.76 KB

the portainer@swarm is the one I use configured for DNS portainer.domain.com and mapping to backend port 9000.

But the first service looks like auto discovery from traefik, but it uses port 8000 which is wrong.

So I am wondering, is there a way to only have one HTTP service ?

FYI here is my portainer stack :

services:
  traefik:
    environment:
      - TZ=Europe/Paris
    image: "traefik:latest"
    command:
      - --entrypoints.web.address=:80
      - --entrypoints.websecure.address=:443
      - --providers.docker
      - --providers.swarm=true
      # Enables the web UI and tells Traefik to listen to docker
      - --api.insecure=true
      - --log.level=DEBUG
      - --accesslog=true  
      - --providers.swarm.exposedbydefault=false

    ports:
      - "80:80"
      - "443:443"
      # The Web UI (enabled by --api.insecure=true)
      - "8080:8080"
    volumes:
      - "/var/run/docker.sock:/var/run/docker.sock:ro"
    deploy:
      restart_policy:
        condition: any
      placement:
        constraints: [node.role == manager]

And here is portainer stack with proper config :

networks:
  agent_network:
    driver: overlay
    attachable: true
  traefik_default:
    external: true

services:
  agent:
    image: portainer/agent:2.27.7
    environment:
      AGENT_CLUSTER_ADDR: tasks.agent
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock
      - /var/lib/docker/volumes:/var/lib/docker/volumes
    networks:
      - agent_network
    deploy:
      mode: global
      placement:
        constraints: [node.platform.os == linux]

  portainer:
    image: portainer/portainer-ce:lts
    command: -H tcp://tasks.agent:9001 --tlsskipverify
    environment:
      TZ: "Europe/Paris"
    deploy:
      labels:
        - "traefik.enable=true"
        - "traefik.http.routers.portainer.rule=Host(`portainer.domain.com`)"
        - "traefik.http.services.portainer.loadbalancer.server.port=9000"
        - "traefik.swarm.network=traefik_default"  
      mode: replicated
      replicas: 1
      placement:
        constraints: 
          - node.role == manager
          - node.hostname == docker-mgmt01
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock
      - portainer_data:/data
    networks:
      - agent_network
      - traefik_default
volumes:
  portainer_data:

thank you !

2

If you enable providers.docker and providers.swarm, you will get local and Swarm containers. You might want to decide for one.

3

Thak you !
Indeed make sense, I didn't realize my mistake. I guess I mixed documentation between docker and swarm.

By removing the flag :

      - --providers.docker

I only get the services I configured.