# Rabbit MQ behind HAProxy

**URL:** <https://discourse.haproxy.org/t/rabbit-mq-behind-haproxy/8891>\
**Category:** Help!\
**Created:** [July 30, 2023, 11:59am UTC](https://discourse.haproxy.org/t/rabbit-mq-behind-haproxy/8891 "2023-07-30T11:59:00Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![ishnets](https://avatars.discourse-cdn.com/v4/letter/i/a698b9/32.png) [@ishnets](https://discourse.haproxy.org/u/ishnets)\
**Post date:** [July 30, 2023, 11:59am UTC](https://discourse.haproxy.org/t/rabbit-mq-behind-haproxy/8891/1 "2023-07-30T11:59:00Z")

</div>

I can’t seem to connect to RabbitMQ cluster behind this HAProxy configuration:  
The RabbitMQ web interface shows up fine on the HAProxy published port 15672 but there is no connectivity from client containers trying to connect to HAProxy on port 5672.

```auto
global
  log stdout format raw local0

defaults
  mode tcp
  log global
  timeout connect 10s
  timeout client 1m
  timeout server 1m

resolvers docker
  nameserver dns1 127.0.0.11:53
  resolve_retries 3
  timeout resolve 1s
  timeout retry 1s
  hold other 10s
  hold refused 10s
  hold nx 10s
  hold timeout 10s
  hold valid 10s
  hold obsolete 10s
  
frontend stats
  mode http
  bind *:8404
  stats enable
  stats uri /
  stats refresh 10s
  
frontend rabbitmq_frontend
  bind *:5672 accept-proxy
  default_backend rabbitmq_backend

backend rabbitmq_backend
  mode tcp
  option tcplog
  balance roundrobin
  option tcp-check
  tcp-check connect port 5672  
  server rabbitmq1 rabbitmq-1:5672 check resolvers docker
  server rabbitmq2 rabbitmq-2:5672 check resolvers docker
  server rabbitmq3 rabbitmq-3:5672 check resolvers docker
  # Add more servers if needed

frontend rabbitmq_management
  bind *:15672 # Replace with your desired port or IP if necessary
  mode http
  default_backend rabbitmq_management_servers

backend rabbitmq_management_servers
  mode http
  balance roundrobin # You can change the load balancing algorithm if needed
  option httpchk GET / # Check health by making an HTTP GET request to the root
  http-check expect status 200
  server rabbitmq-mgt rabbitmq-1:15672 check resolvers docker
  server rabbitmq-mgt2 rabbitmq-2:15672 check resolvers docker
  server rabbitmq-mgt3 rabbitmq-3:15672 check resolvers docker

```

This is example from one HAProxy container showing connections to RabbitMQ web interface:

```auto
docker exec -it 3bee066ea790 netstat -an
Active Internet connections (servers and established)
Proto Recv-Q Send-Q Local Address Foreign Address State
tcp 0 0 0.0.0.0:15672 0.0.0.0:* LISTEN
tcp 0 0 0.0.0.0:5672 0.0.0.0:* LISTEN
tcp 0 0 0.0.0.0:8404 0.0.0.0:* LISTEN
tcp 0 0 127.0.0.11:43543 0.0.0.0:* LISTEN
tcp 0 0 192.168.6.92:52690 192.168.6.254:15672 ESTABLISHED
tcp 0 0 192.168.1.223:15672 192.168.1.4:50951 ESTABLISHED
tcp 0 0 192.168.6.92:53316 192.168.6.3:15672 ESTABLISHED
tcp 0 0 192.168.6.92:58052 192.168.6.253:15672 ESTABLISHED
udp 0 0 127.0.0.1:43245 127.0.0.11:53 ESTABLISHED
udp 0 0 127.0.0.11:60884 0.0.0.0:*
Active UNIX domain sockets (servers and established)
Proto RefCnt Flags Type State I-Node Path
unix 3 [] STREAM CONNECTED 464812
unix 3 [] STREAM CONNECTED 464813

```

This is telnet connection from a client container to another HAProxy container on port 5672 (there is only connection to HAProxy, but no connection to RabbitMQ servers from there on):

```auto
docker exec -it e2bfc4dd6e98 netstat -an
Active Internet connections (servers and established)
Proto Recv-Q Send-Q Local Address Foreign Address State
tcp 0 0 0.0.0.0:15672 0.0.0.0:* LISTEN
tcp 0 0 0.0.0.0:5672 0.0.0.0:* LISTEN
tcp 0 0 127.0.0.11:38041 0.0.0.0:* LISTEN
tcp 0 0 0.0.0.0:8404 0.0.0.0:* LISTEN
tcp 0 0 192.168.6.93:5672 192.168.6.222:65473 ESTABLISHED
udp 0 0 127.0.0.1:58900 127.0.0.11:53 ESTABLISHED
udp 0 0 127.0.0.11:56395 0.0.0.0:*
Active UNIX domain sockets (servers and established)
Proto RefCnt Flags Type State I-Node Path
unix 3 [] STREAM CONNECTED 470962
unix 3 [] STREAM CONNECTED 470961

```