kubectl -n kubernetes-dashboard create token admin-user
kubectl proxy
build express app:
docker build -t express-app-1 .
docker login
docker tag express-app-1 phongdosw2/express-app-1
docker push phongdosw2/express-app-1
docker build -t express-app-2 .
docker login
docker tag express-app-2 phongdosw2/express-app-2
docker push phongdosw2/express-app-2
kubectl exec -i -t express-app-1-2 --container express-app-1 -- /bin/bash