Kubernetes Cookbook - Second Edition

Creating a Service for a Pod

Kubernetes Pods covered by Service require labels, so that Service can recognize who is the one it should take charge of. In the following commands, we create a Pod with labels first, and attach a Service on it:

// using subcommand "run" with "never" restart policy, and without replica, you can get a Pod// here we create a nginx container with port 80 exposed to outside world of Pod$ kubectl run nginx-pod --image=nginx --port=80 --restart="Never" --labels="project=My-Happy-Web,role=frontend,env=test"pod "nginx-pod" created// expose Pod "nginx-pod" with a Service officially with port 8080, target port would be the exposed port of pod$ kubectl expose pod nginx-pod --port=8080 --target-port=80 --name="nginx-service" ...