Internal error occurred: failed calling webhook "validate.nginx.ingress.kubernetes.io": failed to call webhook: Post "https://ingress-nginx-controller-admission.ingress-nginx.svc:443/networking/v1/ingresses?timeout=10s": tls: failed to verify certificate: x509: certificate signed by unknown authority
解决方案
kubectl get validatingwebhookconfigurations kubectl delete -A ValidatingWebhookConfiguration ingress-nginx-admission