Prometheus(普罗米修斯)是一款开源的监控系统，使用go语言开发，启动速度快，易于部署，下载后可直接运行。

本文简单的来说下Prometheus安装启动，以Centos7.x为例。

1、下载Prometheus

wget https://github.com/prometheus/prometheus/releases/download/v2.8.0/prometheus-2.8.0.linux-amd64.tar.gz
tar xf prometheus-2.8.0.linux-amd64.tar.gz -C /usr/local/
mv /usr/local/prometheus-2.8.0.linux-amd64 /usr/local/prometheus
cd /usr/local/prometheus

2、查看Prometheus版本

./prometheus --version

prometheus, version 2.8.0 (branch: HEAD, revision: 59369491cfdfe8dcb325723d6d28a837887a07b9)
  build user:       root@4c4d5c29b71f
  build date:       20190312-07:46:58
  go version:       go1.11.5

3、启动Prometheus

./prometheus &

你没看错，启动一个Prometheus是非常容易的，默认的配置文件prometheus.yml，默认启动后的端口为9090。

4、以服务方式启动

添加到系统服务，方便于管理

vi /etc/systemd/system/prometheus.service

[Unit]
Description=Prometheus Monitoring System
Documentation=Prometheus Monitoring System

[Service]
ExecStart=/usr/local/prometheus/prometheus \
  --config.file=/usr/local/prometheus/prometheus.yml \
  --web.listen-address=:9090

[Install]
WantedBy=multi-user.target

启动服务，设置开机自启

systemctl daemon-reload
systemctl enable prometheus
systemctl start prometheus

访问http://IP:9090