# Howto loadbalance two tcp services

**URL:** <https://community.traefik.io/t/howto-loadbalance-two-tcp-services/1575>\
**Category:** Traefik v2\
**Tags:** tcp\
**Created:** [September 13, 2019, 6:31am UTC](https://community.traefik.io/t/howto-loadbalance-two-tcp-services/1575 "2019-09-13T06:31:59Z")\
**Posts on this page:** 6\
**Page:** 1

<div class="post-metadata">

**Author:** ![RaymondMouthaan](https://sea2.discourse-cdn.com/flex020/user_avatar/community.traefik.io/raymondmouthaan/32/666_2.png) [@RaymondMouthaan](https://community.traefik.io/u/RaymondMouthaan)\
**Post date:** [September 13, 2019, 6:31am UTC](https://community.traefik.io/t/howto-loadbalance-two-tcp-services/1575/1 "2019-09-13T06:31:59Z")

</div>

Hello,

For RabbitMQ i have a Docker Stack with two services: rabbitmq-01 and rabbitmq-02, they are clustered.

For service rabbitmq-01 i've added traefik labels for the management web gui (port 15672). And for both services I've added the labels for tcp routers & services. However now each service has its own router, is there a way that there is only one router linked to both services and loadbalance between them?

Any advice/improvements are very much appreciated!

Greets,  
Ray

```auto
################################################################################
# Rabbit MQ Stack
################################################################################
#$ docker stack deploy rabbitmq --compose-file docker-compose-rabbitmq_v2.yml
################################################################################
version: "3.7"

services:
  rabbitmq-01:
    image: rabbitmq:management-alpine
    user: "1024:100"
    hostname: rabbitmq-01
    environment:
      - RABBITMQ_ERLANG_COOKIE=IYCmrT+iyYdLeNSEO/H14A==
      - RABBITMQ_CONFIG_FILE=/etc/rabbitmq/rabbitmq.conf
    networks:
      proxy_traefik-net:
    volumes:
      - /etc/passwd:/etc/passwd:ro
      - /mnt/docker-cluster/rabbitmq/rabbit-01/enabled_plugins:/etc/rabbitmq/enabled_plugins
      - /mnt/docker-cluster/rabbitmq/rabbit-01/rabbitmq.conf:/etc/rabbitmq/rabbitmq.conf
      - /mnt/docker-cluster/rabbitmq/rabbit-01/data:/var/lib/rabbitmq
      - /mnt/docker-cluster/rabbitmq/rabbit-01/logs:/var/log/rabbitmq

    deploy:
      placement:
        constraints:
          - node.role == manager
      labels:
        - traefik.enable=true
        - traefik.docker.network=proxy_traefik-net
        - traefik.http.routers.rabbitmq-01.rule=Host(`rabbitmq.indonesia`)
        - traefik.http.services.rabbitmq-01.loadbalancer.server.port=15672
        
        - traefik.tcp.routers.rabbitmq-01.rule=HostSNI(`*`)
        - traefik.tcp.routers.rabbitmq-01.entrypoints=rabbit-mq
        - traefik.tcp.services.rabbitmq-01.loadbalancer.server.port=1883

  rabbitmq-02:
    image: rabbitmq:alpine
    user: "1024:100"
    hostname: rabbitmq-02
    environment:
      - RABBITMQ_ERLANG_COOKIE=IYCmrT+iyYdLeNSEO/H14A==
      - RABBITMQ_CONFIG_FILE=/etc/rabbitmq/rabbitmq.conf
    networks:
      proxy_traefik-net:
    volumes:
      - /etc/passwd:/etc/passwd:ro
      - /mnt/docker-cluster/rabbitmq/rabbit-02/enabled_plugins:/etc/rabbitmq/enabled_plugins
      - /mnt/docker-cluster/rabbitmq/rabbit-02/rabbitmq.conf:/etc/rabbitmq/rabbitmq.conf
      - /mnt/docker-cluster/rabbitmq/rabbit-02/data:/var/lib/rabbitmq
      - /mnt/docker-cluster/rabbitmq/rabbit-02/logs:/var/log/rabbitmq
    deploy:
      placement:
        constraints:
          - node.role == worker

      labels:
        - traefik.enable=true
        - traefik.docker.network=proxy_traefik-net
        - traefik.tcp.routers.rabbitmq-02.rule=HostSNI(`*`)
        - traefik.tcp.routers.rabbitmq-02.entrypoints=rabbit-mq
        - traefik.tcp.services.rabbitmq-02.loadbalancer.server.port=1883

networks:
  proxy_traefik-net:
    external: true

```

**traefik.yml**

```auto
global:
  sendAnonymousUsage: true
  checknewversion: true

entryPoints:
  web:
    address: ":80"
  web-secure:
    address: ":443"
  rabbit-mq:
    address: ":1883"

api:
  dashboard: true
  debug: true
  #insecure: true

################################################################
# Ping configuration
################################################################

# Enable ping
ping: {}

  # Name of the related entry point
  #
  # Optional
  # Default: "traefik"
  #
  # entryPoint = "traefik"  

################################################################
# Docker configuration backend
################################################################

# Enable Docker configuration backend
providers:
  docker:
    #endpoint: "unix:///var/run/docker.sock"
    endpoint: "tcp://cluster.indonesia:2375"
    watch: true
    exposedByDefault: false
    # useBindPortIP: true
    swarmMode: true

```

---

<div class="post-metadata">

**Author:** ![RaymondMouthaan](https://sea2.discourse-cdn.com/flex020/user_avatar/community.traefik.io/raymondmouthaan/32/666_2.png) [@RaymondMouthaan](https://community.traefik.io/u/RaymondMouthaan)\
**Post date:** [September 20, 2019, 12:40pm UTC](https://community.traefik.io/t/howto-loadbalance-two-tcp-services/1575/2 "2019-09-20T12:40:38Z")

</div>

Someone any idea how to accomplish this? 🙂

---

<div class="post-metadata">

**Author:** ![XenoPhage](https://sea2.discourse-cdn.com/flex020/user_avatar/community.traefik.io/xenophage/32/236_2.png) [@XenoPhage](https://community.traefik.io/u/XenoPhage)\
**Post date:** [September 20, 2019, 5:07pm UTC](https://community.traefik.io/t/howto-loadbalance-two-tcp-services/1575/3 "2019-09-20T17:07:07Z")

</div>

I believe your second rabbit service needs to use the same service name as the first. ie, the service name should be "rabbitmq" in both instances.

```auto
 services:
  rabbitmq-01:
<snip>
      labels:
        - traefik.enable=true
        - traefik.docker.network=proxy_traefik-net
        - traefik.http.routers.rabbitmq-01.rule=Host(`rabbitmq.indonesia`)
        - traefik.http.services.rabbitmq-01.loadbalancer.server.port=15672
        
        - traefik.tcp.routers.rabbitmq.rule=HostSNI(`*`)
        - traefik.tcp.routers.rabbitmq.entrypoints=rabbit-mq
        - traefik.tcp.services.rabbitmq.loadbalancer.server.port=1883

  rabbitmq-02:
<snip>
      labels:
        - traefik.enable=true
        - traefik.docker.network=proxy_traefik-net
        - traefik.tcp.services.rabbitmq.loadbalancer.server.port=1883

```

---

<div class="post-metadata">

**Author:** ![RaymondMouthaan](https://sea2.discourse-cdn.com/flex020/user_avatar/community.traefik.io/raymondmouthaan/32/666_2.png) [@RaymondMouthaan](https://community.traefik.io/u/RaymondMouthaan)\
**Post date:** [September 20, 2019, 6:47pm UTC](https://community.traefik.io/t/howto-loadbalance-two-tcp-services/1575/4 "2019-09-20T18:47:08Z")

</div>

Thanks for your reply! Your solution helped me pointing to the right direction 👍

I've added the two router lines also to the second service to make it work. If one of the service / containers are shutdown, clients get connected to the remaining service/container.

Thank you very much!

```auto
services:
  rabbitmq-01:
<snip>
      labels:
        - traefik.enable=true
        - traefik.docker.network=proxy_traefik-net
        - traefik.http.routers.rabbitmq-01.rule=Host(`rabbitmq.indonesia`)
        - traefik.http.services.rabbitmq-01.loadbalancer.server.port=15672
        
        - traefik.tcp.routers.rabbitmq.rule=HostSNI(`*`)
        - traefik.tcp.routers.rabbitmq.entrypoints=rabbit-mq
        - traefik.tcp.services.rabbitmq.loadbalancer.server.port=1883

  rabbitmq-02:
<snip>
      labels:
        - traefik.enable=true
        - traefik.docker.network=proxy_traefik-net
        - traefik.tcp.routers.rabbitmq.rule=HostSNI(`*`)
        - traefik.tcp.routers.rabbitmq.entrypoints=rabbit-mq
        - traefik.tcp.services.rabbitmq.loadbalancer.server.port=1883

```

---

<div class="post-metadata">

**Author:** ![smithyj](https://avatars.discourse-cdn.com/v4/letter/s/54ee81/32.png) [@smithyj](https://community.traefik.io/u/smithyj)\
**Post date:** [January 15, 2020, 10:49am UTC](https://community.traefik.io/t/howto-loadbalance-two-tcp-services/1575/5 "2020-01-15T10:49:49Z")

</div>

this is a bad idea, If rabbitmq is two independent services, you need to distinguish access

---

<div class="post-metadata">

**Author:** ![RaymondMouthaan](https://sea2.discourse-cdn.com/flex020/user_avatar/community.traefik.io/raymondmouthaan/32/666_2.png) [@RaymondMouthaan](https://community.traefik.io/u/RaymondMouthaan)\
**Post date:** [January 15, 2020, 1:30pm UTC](https://community.traefik.io/t/howto-loadbalance-two-tcp-services/1575/6 "2020-01-15T13:30:45Z")

</div>

Both services are clustered so they are not independent .