报错：
rancher-rke-01:~/rke # helm install rancher rancher-latest/rancher --namespace cattle-system --set hostname=www.rancher.local
Error: INSTALLATION FAILED: 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": context deadline exceeded
根因：
解决：
kubectl delete -A ValidatingWebhookConfiguration ingress-nginx-admission