下载：https://grafana.com/grafana/download
$ wget wget https://s3-us-west-2.amazonaws.com/grafana-releases/release/grafana-4.4.3-1.x86_64.rpm （下载安装包）
$ yum install grafana-4.4.3-1.x86_64.rpm (yum本地安装)
$ systemctl start grafana-server (开启grafana)
$ systemctl enable grafana-server (设为开机启动)
访问地址 ip:3000
默认管理员账号和密码 admin admin