Kubernetes Networking Basics Explained
Kubernetes Networking Basics Explained

Kubernetes Networking Basics Explained

Author
Shiv Bade
Tags
networking
k8s
Published
April 4, 2019
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Networking in Kubernetes isn't as intuitive as people expect.
Here's what helped me understand it: - Every Pod gets its own IP - All Pods on a Node share the same network namespace - Services act as virtual IPs backed by endpoints (Pods) - kube-proxy sets up NAT rules for cluster traffic
Debug tip: use kubectl exec into busybox or alpine pod to test DNS/HTTP endpoints internally.
Bonus tool: netshoot has been super helpful for debugging traffic.