[…]
kubectl port-forwardallows using resource name, such as a pod name, to select a matching pod to port forward to.kubectl port-forward mongo-75f59d57f4-4nd6q 28015:27017 [or]
kubectl port-forward pods/mongo-75f59d57f4-4nd6q 28015:27017 [or]
kubectl port-forward deployment/mongo 28015:27017 [or]
kubectl port-forward replicaset/mongo-75f59d57f4 28015:27017 [or]
https://kubernetes.io/docs/tasks/access-application-cluster/port-forward-access-application-cluster/