Nodeport service is not showing the application, coming up with page cant reach

Question

Nodeport service is not showing the application, coming up with page cant reach, where as it worked when I changed the type to "Loadbalncer" in the YAML file. Please suggest.

Below is the nodeport IP , am I doing something wrong?

Please suggest.

Answer 1

Hello @sns
When you declare a service as NodePort exposes the Service on each Node’s IP at the NodePort (a fixed port for that Service, in the default range of 30000-32767). You can then access the Service from outside the cluster by requesting **<NodeIp>:<NodePort>.
**
For example you have the following service definition:

apiVersion: v1
kind: Service
metadata:
  name: my-service
spec:
  type: NodePort
  selector:
    app.kubernetes.io/name: MyApp
  ports:
      # By default and for convenience, the 
    - port: 80
      targetPort: 80
      # Optional field
      # By default and for convenience, the Kubernetes control plane will allocate a port from a range (default: 30000-32767)
      nodePort:30007 

---

This Service is visible as <NodeIP>:spec.ports[*].nodePort

You can find more information in the official k8s doc: [https://kubernetes.io/docs/concepts/services-networking/service/#type-nodeport
Hope this helps.

Please "Accept as Answer" if it helped and Upvote, so that it can help others in the community looking for help on similar topics.
Thank you!

Answer 2

Hello @SNS Admin (SNS) ,

When you declare a service as NodePort exposes the Service on each Node’s IP at the NodePort (a fixed port for that Service, in the default range of 30000-32767). You can then access the Service from outside the cluster by requesting <NodeIp>:<NodePort>.

Please check the following example with service definition file:

apiVersion: v1
kind: Service
metadata:
  name: my-service
spec:
  type: NodePort
  selector:
    app.kubernetes.io/name: MyApp
  ports:
      # By default and for convenience, the `targetPort` is set to the same value as the `port` field.
    - port: 80
      targetPort: 80
      # Optional field
      # By default and for convenience, the Kubernetes control plane will allocate a port from a range (default: 30000-32767)
      nodePort: 30007

This Service is visible as <NodeIP>:spec.ports[*].nodePort, hence <NodeIP>:30007

You can find more information in the official k8s doc: [https://kubernetes.io/docs/concepts/services-networking/service/#type-nodeport

Hope it helps.

Please "Accept as Answer" if it helped and Upvote, so that it can help others in the community looking for help on similar topics.

Thank you

Answer 3

Hi @SNS Admin (SNS) ,

Looks like you are missing to do the "kubectl port-forward <pod name> 80" or "kubectl port-forward <pod name> 32285:80"

Hope this helps. Please "Accept as Answer" if it helped, so that it can help others in the community looking for help on similar topics.