1. 添加chart repo
bash
helm repo add istio https://istio-release.storage.googleapis.com/charts
helm repo update
2. 查看版本
bash
helm search repo istio
3. 查看版本详细信息
bash
helm show chart istio/cni

4. 查看某个chart的历史版本
bash
helm search repo <chart-name> --versions

5. 下载指定版本的chart包
