下载Prometheus安装包，下载地址

https://prometheus.io/download/

# wget https://github.com/prometheus/prometheus/releases/download/v2.18.1/prometheus-2.18.1.linux-amd64.tar.gz

解压压缩包

# tar -zvxf prometheus-2.18.1.linux-amd64.tar.gz

prometheus-2.18.1.linux-amd64/

prometheus-2.18.1.linux-amd64/promtool

prometheus-2.18.1.linux-amd64/prometheus.yml

prometheus-2.18.1.linux-amd64/console_libraries/

prometheus-2.18.1.linux-amd64/console_libraries/prom.lib

prometheus-2.18.1.linux-amd64/console_libraries/menu.lib

prometheus-2.18.1.linux-amd64/consoles/

prometheus-2.18.1.linux-amd64/consoles/node-cpu.html

prometheus-2.18.1.linux-amd64/consoles/node-overview.html

prometheus-2.18.1.linux-amd64/consoles/prometheus-overview.html

prometheus-2.18.1.linux-amd64/consoles/index.html.example

prometheus-2.18.1.linux-amd64/consoles/prometheus.html

prometheus-2.18.1.linux-amd64/consoles/node-disk.html

prometheus-2.18.1.linux-amd64/consoles/node.html

prometheus-2.18.1.linux-amd64/NOTICE

prometheus-2.18.1.linux-amd64/tsdb

prometheus-2.18.1.linux-amd64/prometheus

prometheus-2.18.1.linux-amd64/LICENSE

#

将解压后的目录改名

# mv prometheus-2.13.1.linux-amd64 /opt/prometheus

查看promethus版本

# ./prometheus --version

prometheus, version 2.18.1 (branch: HEAD, revision: ecee9c8abfd118f139014cb1b174b08db3f342cf)

  build user:       root@2117a9e64a7e

  build date:       20200507-16:51:47

  go version:       go1.14.2

[root@node-10 prometheus]#

配置系统服务启动

# vim /etc/systemd/system/prometheus.service

[Unit]

Description=Prometheus Monitoring System

Documentation=Prometheus Monitoring System

​

[Service]

ExecStart=/opt/prometheus/prometheus \

--config.file /opt/prometheus/prometheus.yml \

--web.listen-address=:9090

​

[Install]

WantedBy=multi-user.target

加载系统服务

[# systemctl daemon-reload

#

启动服务和添加开机自启动

[#

# systemctl enable prometheus

# systemctl start prometheus

# systemctl status prometheus

开启prometheus模块

# ceph mgr module ls |more

# ceph mgr module enable prometheus

#

检查端口

# netstat -nltp | grep mgr  

tcp        0      0 0.0.0.0:9283            0.0.0.0:*               LISTEN      1402/ceph-mgr           

测试返回值

# curl 127.0.0.1:9283/metrics

修改promethus.yml文件

在 scrape_configs: 配置项下添加

vim prometheus.yml

- job_name: 'ceph_cluster'

   honor_labels: true

   scrape_interval: 5s

   static_configs:

     - targets: ['xx.xx.xx.xx:9283']

       labels:

         instance: ceph

重启promethus服务

# systemctl restart prometheus

# systemctl status prometheus

# netstat -ntlp|grep 9090

tcp6       0      0 :::9090                 :::*                    LISTEN      28388/prometheus   

#

检查prometheus服务器中是否添加成功

# 浏览器-》 http://x.x.x.x:9090 -》status -》Targets

浏览器登录 grafana 管理界面

 添加data sources，点击configuration--》data sources

添加dashboard，点击HOME--》find dashboard on grafana.com

https://grafana.com/grafana/dashboards?orderBy=name&direction=asc

搜索ceph的dashboard

 点击HOME--》Import dashboard, 选择合适的dashboard，记录编号

导入dashboard模板

grafana 监控ceph dashboard