Ingress configuration setup doesn't redirect to correct page

Question

Need help on setting up the ingress in K8S. Thank you in advance.

I have configured, NGINX Controller and Cert-Manager on the AKS cluster using Helm.

Here is the svc, pods list.

Next - deployed two pods, and respected services here are those names and can be found in the above-attached image.

• pod/rpe-delivers-orders-dcs-api*
• service/rpe-delivers-orders-dcs-api
• pod/rpe-delivers-orders-proxy-api*
• service/rpe-delivers-orders-proxy-api

Next - when I try to set up the ingress like below for the above two services.

apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  name: rpe-delivers-orders-dcs-ingress
  annotations:
    kubernetes.io/ingress.class: nginx
    cert-manager.io/cluster-issuer: dcs-cluster-issuer
    nginx.ingress.kubernetes.io/rewrite-target: /$1
    nginx.ingress.kubernetes.io/use-regex: "true"
spec:
  tls:
  - hosts:
    - raag.westus2.cloudapp.azure.com
    secretName: dcs-tls-secret
  rules:
  - host: raag.westus2.cloudapp.azure.com
    http:
      paths:
      - path: /orders-dcs(/|$)(.*)
        pathType: Prefix
        backend:
          service:
            name: rpe-delivers-orders-dcs-api
            port:
              number: 80
      - path: /orders-proxy(/|$)(.*)
        pathType: Prefix
        backend:
          service:
            name: rpe-delivers-orders-proxy-api
            port:
              number: 80
      - path: /(.*)
        pathType: Prefix
        backend:
          service:
            name: rpe-delivers-orders-dcs-api
            port:
              number: 80

• Working as expected - raag.westus2.cloudapp.azure.com
• Working as expected - raag.westus2.cloudapp.azure.com/rpe-delivers-orders-dcs-api
• Not working - raag.westus2.cloudapp.azure.com/rpe-delivers-orders-proxy-api

My goal is for the below URLs should redirect to two different web pages:

• raag.westus2.cloudapp.azure.com/rpe-delivers-orders-dcs-api
• raag.westus2.cloudapp.azure.com/rpe-delivers-orders-proxy-api

Please let me know if I'm missing any information or didn't do the setup right.

Thank you.

Answer 1

Looks like you are missing the block of rpe-delivers-orders-proxy-api in your ingress config

- path: /(.*)
        pathType: Prefix
        backend:
          service:
            name: rpe-delivers-orders-proxy-api
            port:
              number: 80

If you have any path rewrite option and requirement in that case you can create the two different ingress

No 1. rewrite ingress

apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  name:  ingress-first
  annotations:
    kubernetes.io/ingress.class: nginx
    cert-manager.io/cluster-issuer: dcs-cluster-issuer
    nginx.ingress.kubernetes.io/rewrite-target: /$1
    nginx.ingress.kubernetes.io/use-regex: "true"
spec:
  tls:
  - hosts:
    - raag.westus2.cloudapp.azure.com
    secretName: dcs-tls-secret
  rules:
  - host: raag.westus2.cloudapp.azure.com
    http:
      paths:
      - path: /orders-dcs(/|$)(.*)
        pathType: Prefix
        backend:
          service:
            name: rpe-delivers-orders-dcs-api
            port:
              number: 80
      - path: /orders-proxy(/|$)(.*)
        pathType: Prefix
        backend:
          service:
            name: rpe-delivers-orders-proxy-api
            port:
              number: 80

No 2. simple ingress which will be also there as per your requirement

apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  name: ingress-second
  annotations:
    kubernetes.io/ingress.class: nginx
spec:
  tls:
  - hosts:
    - raag.westus2.cloudapp.azure.com
    secretName: dcs-tls-secret
  rules:
  - host: raag.westus2.cloudapp.azure.com
    http:
      paths:
      - path: /
        backend:
          service:
            name: rpe-delivers-orders-proxy-api
            port:
              number: 80
      - path: /
        backend:
          service:
            name: rpe-delivers-orders-dcs-api
            port:
              number: 80

Update :

apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  name: ingress-second
  annotations:
    kubernetes.io/ingress.class: nginx
spec:
  tls:
  - hosts:
    - raag.westus2.cloudapp.azure.com
    secretName: dcs-tls-secret
  rules:
  - host: raag.westus2.cloudapp.azure.com
    http:
      paths:
      - path: /orders-proxy
        pathType: Prefix
        backend:
          service:
            name: rpe-delivers-orders-proxy-api
            port:
              number: 80