kubectl port-forward --address 0.0.0.0 nginx-yaml 80:80
 
 kubectl exec -it nginx-yaml /bin/bash
 
 kubectl attach -it nginx-yaml
 
cd /usr/share/nginx/html

kubectl exec -it nginx-yaml /bin/bash

mkdir copytest
cd copytest
echo "file copy test" >> one.txt

kubectl cp nginx-yaml:/copytest/one.txt /root/CKA/one.txt

kubectl get pods -o wide