CentOS7 prometheus +node_exporter+Grafana 安装篇

一、prometheus下载与安装

1、下载

https://prometheus.io/download/ 

2、安装

上传prometheus-2.15.2.linux-amd64.tar.gz

tar -xvf prometheus-2.15.2.linux-amd64.tar.gz

mkdir /u01/soft/prometheus/

groupadd prometheus
useradd -g prometheus prometheus -d /u01/soft/prometheus/

cd prometheus-2.5.0.linux-amd64/
mv * /u01/soft/prometheus/

cd /u01/soft/prometheus/
mkdir {data,cfg,logs,bin} -p
mv prometheus promtool bin/
mv prometheus.yml cfg/

chown -R prometheus.prometheus /u01/soft/prometheus/*

3、设置环境变量

vim /etc/profile
PATH= /u01/soft/prometheus/bin:$PATH:$HOME/bin
source /etc/profile

4、创建prometheus.service 的 systemd unit 文件

vim /etc/systemd/system/prometheus.service

[Unit]
Description=Prometheus
Documentation=https://prometheus.io/
After=network.target

[Service]
Type=simple
User=prometheus
ExecStart=/u01/soft/prometheus/bin/prometheus --config.file=/u01/soft/prometheus/cfg/prometheus.yml --storage.tsdb.path=/u01/soft/prometheus/data
Restart=on-failure

[Install]
WantedBy=multi-user.target

5、prometheus.yml配置文件

先使用默认设置

6、启动服务

systemctl daemon-reload

systemctl enable prometheus.service

systemctl start prometheus.service

systemctl status prometheus.service

7、登录Prometheus自带有简单的UI

http://172.16.102.15:9090/targets

二、node_exporter下载与安装

1、下载node_exporter

在prometheus官网

2、安装node_exporter

(如果node_exporter与Prometheus不在同一台机器，请创建Prometheus用户，否则无法启动)

groupadd prometheus
useradd -g prometheus prometheus -d /u01/soft/prometheus/

tar -vzxf node_exporter-0.18.1.linux-amd64

mv node_exporter-0.18.1.linux-amd64 node_exporter

3、创建node_exporter.service的 systemd unit 文件

vim /usr/lib/systemd/system/node_exporter.service
[Unit]
Description=node_exporter
Documentation=https://prometheus.io/
After=network.target

[Service]
Type=simple
User=prometheus
ExecStart=/u01/soft/prometheus/node_exporter/node_exporter
Restart=on-failure

[Install]
WantedBy=multi-user.target

4、启动服务

systemctl daemon-reload
systemctl enable node_exporter.service
systemctl start node_exporter.service

 5、客户监控端数据汇报

http://172.16.102.15:9100/metrics

三、grafana下载与安装

1、下载grafana

下载需要登陆

user：xibuhaohao

pass:

https://grafana.com/grafana/download

2、安装grafana

mkdir /u01/soft/grafana/

rpm -ivh grafana-6.5.3-1.x86_64.rpm

 3、启动服务

systemctl daemon-reload
systemctl enable grafana-server.service
systemctl start grafana-server.service

systemctl status grafana-server.service

4、访问grafana WEB界面

172.16.102.15:3000/

默认账号/密码：admin/admin