Services Part C: Ports & Binding Explained with Debugging Demo | Kubernetes

In this video, I explain how ports work in Kubernetes Services, especially focusing on ClusterIP Services, containerPort, targetPort, and Docker’s EXPOSE.

We cover:

✅ The difference between containerPort and targetPort
✅ How Kubernetes routes traffic from a Service to a Pod
✅ Why EXPOSE in a Dockerfile is just metadata
✅ How to debug port binding issues using kubectl exec, netstat, docker inspect, and grep inside a container
✅ How mismatched ports can silently break your Service routing
✅ The importance of matching your application’s actual listening port with Kubernetes configuration

You’ll see a complete demo from YAML deployment to container internals, including step-by-step commands to identify and resolve port mismatches.

This video is perfect for developers, DevOps engineers, or anyone learning Kubernetes networking and debugging.

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Видео Services Part C: Ports & Binding Explained with Debugging Demo | Kubernetes канала CloudAtHome