kubectl create -f sample/ingress.yaml
Error from server (InternalError): error when creating "sample/ingress.yaml": Internal error occurred: failed calling webhook "validate.nginx.ingress.kubernetes.io": Post "https://ingress-nginx-controller-admission.ingress-nginx.svc:443/networking/v1/ingresses?timeout=10s": dial tcp 10.108.252.244:443: connect: connection refused