In this recipe, we'll use localhost cluster as the main console to switch the cluster via context changes. First, run a different number of nginx into both the clusters and make sure the pods are all running:

// in the terminal of localhost cluster
$ kubectl run local-nginx --image=nginx --replicas=2 --port=80
deployment "local-nginx" created
// check the running pods
$ kubectl get pod
NAME                           READY     STATUS    RESTARTS   AGE
local-nginx-6484bbb57d-xpjp2   1/1       Running   0          1m
local-nginx-6484bbb57d-z4qgp   1/1       Running   0          1m
// in the terminal of remote cluster
$ kubectl run remote-nginx --image=nginx --replicas=4 --port=80
deployment "remote-nginx" created
$ kubectl get pod
NAME                            READY     STATUS    RESTARTS   AGE
remote-nginx-5dd7b9cb7d-fxr9m   1/1       Running   0          29s
remote-nginx-5dd7b9cb7d-gj2ft   1/1       Running   0          29s
remote-nginx-5dd7b9cb7d-h7lmj   1/1       Running   0          29s
remote-nginx-5dd7b9cb7d-hz766   1/1       Running   0          29s