安装helm

下载helm文件包，v3版以后已经不需要安装tiller

wget https://get.helm.sh/helm-v3.2.1-linux-amd64.tar.gz
tar zxvf helm-v3.2.1-linux-amd64.tar.gz
cd linux-amd64/
cp -a helm   /usr/local/bin/
helm  version
helm repo add stable https://apphub.aliyuncs.com/
helm  repo  update