I have a headless service in my cluster:

apiVersion: v1
kind: Service
metadata:
  namespace: my-namespace
  name: my-headless-service
spec:
  clusterIP: None # <- Headless service
  selector:
    service: my-app
  ports:
  - port: 52323
    targetPort: 52323

However I don't quite get how I'm supposed to extract the endpoints the headless service defines. I can see them in OpenLens:

How can I get these endpoints from my C# application that's running in the cluster?

I have a headless service in my cluster:

apiVersion: v1
kind: Service
metadata:
  namespace: my-namespace
  name: my-headless-service
spec:
  clusterIP: None # <- Headless service
  selector:
    service: my-app
  ports:
  - port: 52323
    targetPort: 52323

However I don't quite get how I'm supposed to extract the endpoints the headless service defines. I can see them in OpenLens:

How can I get these endpoints from my C# application that's running in the cluster?

• c#
• kubernetes

Share Improve this question Follow edited Mar 26 at 16:35 Sal asked Mar 25 at 13:05 SalSal 5,96466 gold badges3131 silver badges6060 bronze badges

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1 Answer 1

Sorted by: Reset to default 0

To quote the Kubernetes documentation:

headless Services report the endpoint IP addresses of the individual pods via internal DNS records, served through the cluster's DNS service.

So you can perform a DNS lookup on your headless service's host name to resolve those ip's:

var ips = Dns.GetHostEntry("my-headless-service.my-namespace").AddressList;

This won't return the ports however. Not quite sure how to get those