K
Q

setting up rabbitmq in k8s with nginx ingress controller

12/24/2019

I am trying to setup rabbitmq, deployed as a pod, in k8s cluster. Also did setup Nginx ingress controller in order to have external access for the services in the cluster by using URLs.

Here is the working config through which I am able to access the rabbitmq management console:

apiVersion: extensions/v1beta1
kind: Ingress
metadata:
  name: nginx-gateway
  annotations:
    nginx.ingress.kubernetes.io/rewrite-target: /  
spec:
  tls:
  - hosts:
    - ***ABC***.com
    secretName: gateway-tls-secret
  rules:
  - host: ***ABC***.com 
    http:
      paths:
      - backend:
          serviceName: ie-rabbitmq
          servicePort: 15672
        path: /

Logs in Nginx controller

10.202.3.59 - - [24/Dec/2019:06:59:19 +0000] "GET /api/auth HTTP/2.0" 200 57 "https://***ABC***.com/" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/79.0.3945.79 Safari/537.36" 324 0.003 [ie-poc-ie-rabbitmq-15672] [] 10.244.5.235:15672 57 0.003 200 eed95f6d3ee6bddae7a7128b4b500152

10.202.3.59 - - [24/Dec/2019:06:59:19 +0000] "GET /js/tmpl/login.ejs?0.16274381270760774 HTTP/2.0" 200 630 "https://***ABC***.com/" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/79.0.3945.79 Safari/537.36" 48 0.001 [ie-poc-ie-rabbitmq-15672] [] 10.244.5.235:15672 630 0.001 200 75c43c0e3e3d8de715c4ffa540a4b0a8

But when I change the backend.path to /rabbit from /, the service is not reachable.

apiVersion: extensions/v1beta1
kind: Ingress
metadata:
  name: nginx-gateway
  annotations:
    nginx.ingress.kubernetes.io/rewrite-target: /  
spec:
  tls:
  - hosts:
    - ***ABC***.com
    secretName: gateway-tls-secret
  rules:
  - host: ***ABC***.com 
    http:
      paths:
      - backend:
          serviceName: ie-rabbitmq
          servicePort: 15672
        path: /rabbit

From Nginx controller logs what I see is, for this config the request is being directed to [upstream-default-backend] 10.244.3.84:8080 but ideally it should re-direct the request to [ie-poc-ie-rabbitmq-15672] [] 10.244.5.235:15672 which is observed when the request was successful.

10.202.3.59 - - [24/Dec/2019:06:57:15 +0000] "GET /api/auth HTTP/2.0" 404 21 "https://i***ABC***.com/rabbit" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/79.0.3945.79 Safari/537.36" 57 0.001 [upstream-default-backend] [] 10.244.3.84:8080 21 0.001 404 2a1d6b6abf1b7ff03884f275c4a15c14

10.202.3.59 - - [24/Dec/2019:06:57:15 +0000] "GET /js/tmpl/login.ejs?0.4076380641124395 HTTP/2.0" 404 21 "https://***ABC***.com/rabbit" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/79.0.3945.79 Safari/537.36" 47 0.001 [upstream-default-backend] [] 10.244.3.84:8080 21 0.001 404 df534e5e9b2e5aabb9fa6bb272d4b5e9

Can someone help me to understand why the second config is not working/loading rabbitmq config?

-- Here_2_learn
kubernetes
kubernetes-ingress
nginx
rabbitmq

Similar Questions

pods container (podsgke) and CPU usage
coredns can't start when using crio and with selinux on
Can't run deployment from under rancher
How to define a Kubernetes Service with Terraform and ClusterIP
DestinationRule is not applied on ServiceEntry
'realpath(): Permission denied' when running dotnet ef command as non-root in dotnet/sdk:3.1-bullseye container on k8s
Using the Python kubernetes API, is there a way to list secrets in "my current namespace"?
no resource found after deploy issuer of cert manager in kops aws
Get helm release values (helm show values) via the Kubernetes Dashboard

2 Answers

1/9/2020

Try adding the management.path_prefix = /rabbit to your Rabbitmq configmap. That fixed the issue for me.

-- Martin
Source: StackOverflow
4/20/2020

Try below the NGINX Ingress Rewrite rule, it works for me:

apiVersion: extensions/v1beta1
kind: Ingress
metadata:
  name: nginx-gateway
  annotations:
    nginx.ingress.kubernetes.io/rewrite-target: /$1
spec:
  rules:
    - http:
        paths:
          - backend:
              serviceName: rmq-rabbitmq-ha
              servicePort: 15672
            path: /rabbit/(.*)

And here is the screenshot:

enter image description here

By the way, if you don't need the subpath, the Ingress config file is this:

apiVersion: extensions/v1beta1
kind: Ingress
metadata:
  name: nginx-gateway
spec:
  rules:
    - http:
        paths:
          - backend:
              serviceName: rmq-rabbitmq-ha
              servicePort: 15672
            path: /
-- Yuci
Source: StackOverflow