推荐微软源：
helm repo add azure https://mirror.azure.cn/kubernetes/charts
[root@k8s-master01 helm]# helm repo list
NAME URL
ingress-nginx https://kubernetes.github.io/ingress-nginx
bitnami https://charts.bitnami.com/bitnami
azure https://mirror.azure.cn/kubernetes/charts
stable https://kubernetes.oss-cn-hangzhou.aliyuncs.com/chart