index.yaml 内容如下：
[root@prod-common-kubesphere-master1 helm_repo]# curl http://172.16.1.93:8879
<html>
<head>
<title>Helm Repository</title>
</head>
<h1>Helm Charts Repository</h1>
<ul>
<li>a<ul>
<li><a href=“http://172.16.1.93:8879/a-0.1.0.tgz”>a-0.1.0</a></li>
</ul>
</li>
</ul>
<body>
<p>Last Generated: 2020-04-16 17:44:25.005697923 +0800 CST</p>
</body>
</html>
