MinikubeでIngressの作成に失敗する

Error from server (InternalError): error when creating "keycloak-ingrers.yaml": Internal error occurred: failed calling webhook "validate.nginx.ingress.kubernetes.io": Post "https://ingress-nginx-controller-admission.ingress-nginx.svc:443/networking/v1beta1/ingresses?timeout=10s": x509: certificate signed by unknown authority

対策

kubectl delete -A ValidatingWebhookConfiguration ingress-nginx-admission