# Port forwarding problem using Traefik and docker

**URL:** <https://community.traefik.io/t/port-forwarding-problem-using-traefik-and-docker/10829>\
**Category:** Traefik v2\
**Tags:** docker-swarm\
**Created:** [June 3, 2021, 7:11pm UTC](https://community.traefik.io/t/port-forwarding-problem-using-traefik-and-docker/10829 "2021-06-03T19:11:52Z")\
**Posts on this page:** 5\
**Page:** 1

<div class="post-metadata">

**Author:** ![al-yakubovich](https://sea2.discourse-cdn.com/flex020/user_avatar/community.traefik.io/al-yakubovich/32/3849_2.png) [@al-yakubovich](https://community.traefik.io/u/al-yakubovich)\
**Post date:** [June 3, 2021, 7:11pm UTC](https://community.traefik.io/t/port-forwarding-problem-using-traefik-and-docker/10829/1 "2021-06-03T19:11:52Z")

</div>

Hi!

I want the next port forwarding:

`http://traefik.service.localhost/` -\> `Traefik UI`

`http://api.service.localhost/` -\> `'Hello-Word' page from api-service`

Here is my attempt to create appropriate **docker-compose.yml** file:

```
version: '3.8'

services:

  reverse-proxy:
    image: traefik:v2.4
    container_name: reverse-proxy
    command: 
      - "--api.insecure=true"
      - "--providers.docker"
    ports:
      - "80:80"
      - "8080:8080"
    labels:
      - traefik.enable=true
      - traefik.docker.network=pred-network
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock
    networks:
      - pred-network

  api-service:
    image: x86_64/prediction-service:0.8.1
    container_name: api-service
    environment:
      SERVING_SERVICE: model-service
    expose:
      - 80
    labels:
      - traefik.enable=true
      - traefik.http.routers.api-service.rule=Host(`api.service.localhost`)
    networks:
      - pred-network

networks:
  pred-network:

```

I am getting the following:

`http://traefik.service.localhost/` -\> `HTTP Error 404. The requested resource is not found.`

`http://api.service.localhost/` -\> `HTTP Error 404. The requested resource is not found.`

The only link that actually works:

`http://api.service.localhost:8080/` -\> `Traefik UI`

If I would include:

```
ports:
  - "8070:80"

```

into **api-service** part of **docker-compose.yml** I could access my 'Hello-Word':  
`http://localhost:8070/` -\> `"Hello-Word"`  
In this case it not get routed through Traefik but directly through **api-service**. Is it possible to do it over Traefik?

I would appreciate any ideas!

---

<div class="post-metadata">

**Author:** ![tommoulard](https://sea2.discourse-cdn.com/flex020/user_avatar/community.traefik.io/tommoulard/32/2997_2.png) [@tommoulard](https://community.traefik.io/u/tommoulard)\
**Post date:** [June 4, 2021, 12:34pm UTC](https://community.traefik.io/t/port-forwarding-problem-using-traefik-and-docker/10829/2 "2021-06-04T12:34:14Z")

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To have a service routed by traefik with docker, you should have labels. Traefik will fetch those labels in order to know how to do routing.

Thus, to have request of `api.service.localhost` routed to your api service, you should have the label that define the corresponding [rule](https://doc.traefik.io/traefik/routing/routers/#rule):

```
traefik.http.routers.service.rule=Host(`api.service.localhost`)

```

As for the label of Traefik, you should have two labels:

```
traefik.http.routers.traefik.rule=Host(`traefik.service.localhost`)
traefik.http.routers.traefik.service=api@internal

```

Beside those traefik labels, you should tell traefik to expose the dashboard using a specific service by adding this configuration: [`--api.dashboard`](https://doc.traefik.io/traefik/operations/dashboard/#secure-mode) (More help to expose the dashboard [here](https://doc.traefik.io/traefik/operations/dashboard/#dashboard-router-rule)).

Note, if your api service uses another port than the one by default, you could add this label:

```
traefik.http.services.service.loadbalancer.server.port=80 

```

Here is a working example for you:

```auto
version: '3.7'

services:
  traefik:
    image: traefik:2.4
    command:
      - '--api.dashboard'
      - '--providers.docker'
    ports:
      - "80:80"
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock
    labels:
      - traefik.http.routers.traefik.rule=Host(`traefik.service.localhost`)
      - traefik.http.routers.traefik.service=api@internal
  whoami:
    image: traefik/whoami
    labels:
      - traefik.http.routers.service.rule=Host(`api.service.localhost`)
      - traefik.http.services.service.loadbalancer.server.port=80

```

Ps, please refrain from using `--api.insecure=true` , this is _insecure_ !

---

<div class="post-metadata">

**Author:** ![al-yakubovich](https://sea2.discourse-cdn.com/flex020/user_avatar/community.traefik.io/al-yakubovich/32/3849_2.png) [@al-yakubovich](https://community.traefik.io/u/al-yakubovich)\
**Post date:** [June 4, 2021, 5:57pm UTC](https://community.traefik.io/t/port-forwarding-problem-using-traefik-and-docker/10829/3 "2021-06-04T17:57:27Z")

</div>

@tommoulard  
Thank you for answer.

I do not know why but I still cannot access desirable paths.

Here is my full updated code:

```auto
version: '3.8'

services:
  reverse-proxy:
    image: traefik:v2.4
    container_name: reverse-proxy
    command: 
      - "--api.dashboard"
      - "--providers.docker"
    ports:
      - "80:80"
      - "8080:8080"
    labels:
      - traefik.http.routers.traefik.rule=Host(`traefik.service.localhost`)
      - traefik.http.routers.traefik.service=api@internal
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock
    networks:
      - pred-network
  api-service:
    image: x86_64/prediction-service:0.8.1
    container_name: api-service
    environment:
      SERVING_SERVICE: model-service
    expose:
      - 80
    labels:
      - traefik.http.routers.service.rule=Host(`api.service.localhost`)
      - traefik.http.services.service.loadbalancer.server.port=80
    networks:
      - pred-network

networks:
  pred-network:

```

---

<div class="post-metadata">

**Author:** ![cakiwi](https://sea2.discourse-cdn.com/flex020/user_avatar/community.traefik.io/cakiwi/32/3205_2.png) [@cakiwi](https://community.traefik.io/u/cakiwi)\
**Post date:** [June 5, 2021, 2:44pm UTC](https://community.traefik.io/t/port-forwarding-problem-using-traefik-and-docker/10829/4 "2021-06-05T14:44:27Z")

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@al-yakubovich

This topic is posted with the swarm label, are you actually using docker swarm with this compose ?

---

<div class="post-metadata">

**Author:** ![al-yakubovich](https://sea2.discourse-cdn.com/flex020/user_avatar/community.traefik.io/al-yakubovich/32/3849_2.png) [@al-yakubovich](https://community.traefik.io/u/al-yakubovich)\
**Post date:** [June 9, 2021, 12:10am UTC](https://community.traefik.io/t/port-forwarding-problem-using-traefik-and-docker/10829/5 "2021-06-09T00:10:54Z")

</div>

@cakiwi  
No, but I am planning to use Swarm