kubectl create

kubectl create deployment --image=nginx nginx --replicas=4 --dry-run=client -o yaml > nginx-deployment.yaml

kubectl create -f pod-definition.yml

kubectl create secret tls tls-certificate --key nginx-selfsigned.key --cert nginx-selfsigned.crt

$ kubectl get secret

NAME                  TYPE                                  DATA   AGE
default-token-mwh6r   kubernetes.io/service-account-token   3      2d7h
tls-certificate       kubernetes.io/tls                     2      23s