Kubernetes Ingress Port to Port route

Question

I want to open my services outside. I decided to use ingress for this. But directly over the IP without the hostname. For example, for an application running on port 9090, when I type IP:9090, it should go to the corresponding application. likewise 9091,8080,7070 etc.

I didn't choose to use NodePort, because it restricts between 30000 and 32767.Dec.

Ingress can I solve this problem with a general rule? or is Ingress a suitable choice for this?

Answer 1

If you want to expose services directly via IP and port without using hostnames, you should use Kubernetes Services of type LoadBalancer instead of Ingress. Ingress is primarily designed for HTTP/HTTPS routing based on hostnames, whereas Services of type LoadBalancer allow you to expose services directly via an external IP address and port.

apiVersion: v1
kind: Service
metadata:
  name: my-service
spec:
  selector:
    app: my-app
  ports:
    - protocol: TCP
      port: 9090
      targetPort: 9090
    
  type: LoadBalancer