kubernetes specify namespace code example
Example 1: kubectl change namespace
kubectl config set-context --current --namespace=my-namespace
Example 2: kubernetes java client create namespace
V1Namespace ns = new V1Namespace().metadata(new V1ObjectMeta().name("new-namespace"));
CoreV1Api api = new CoreV1Api();
V1Namespace createdNamespace = api.createNamespace(ns, null, null, null);