head插件
切换到Elasticsearch的安装目录
cd ~/demo/elasticsearch/es1
执行安装命令
[root@localhost es1]# bin/plugin install mobz/elasticsearch-head
打开http://10.10.10.201:9200/_plugin/head/ 安装成功
插件安装参考：
Elasticsearch Plugins and Integrations:https://www.elastic.co/guide/en/elasticsearch/plugins/current/index.html
Management and site plugins:https://www.elastic.co/guide/en/elasticsearch/plugins/current/management.html
Elasticsearch 相关产品文档：https://www.elastic.co/guide/index.html