Prometheus安装

Prometheus安装

• 安装go环境变量
• 安装prometheus服务端
• 安装prometheus客户端exporter
• 安装grafana(prometheus 的图形展示)

安装go环境变量

#下载go 
https://golang.org/dl/

#解压
tar -C /usr/local  -zxf go1.15.5.linux-amd64.tar.gz

#配置环境变量
vim  /etc/profile
export PATH=$PATH:/usr/local/go/bin

#环境变量生效
source  /etc/profile

#查看go版本
go  version

安装prometheus服务端

#下载 
https://prometheus.io/download/

#解压
tar -zxf prometheus-2.22.2.linux-amd64.tar.gz

启动
cd prometheus
./prometheus 

打开自带监控页面
http://xx.xx.xx.xx:9090/targets

安装prometheus客户端exporter

下载页面提供了很多的exporter
https://prometheus.io/download/

第三方exporter
https://prometheus.io/docs/instrumenting/exporters/

安装node_exporter(服务器指标)

#解压
tar -zxf  node_exporter-1.0.1.linux-amd64.tar.gz

nohup  ./node_exporter --web.listen-address=:30010 &
# --web.listen-address 指定端口,node_exporter默认端口9100

修改prometheus 配置文件prometheus.yml

global:
  scrape_interval:     15s # Set the scrape interval to every 15 seconds. Default is every 1 minute.
  evaluation_interval: 15s # Evaluate rules every 15 seconds. The default is every 1 minute.
  # scrape_timeout is set to the global default (10s).

# Alertmanager configuration
alerting:
  alertmanagers:
  - static_configs:
    - targets:
      # - alertmanager:9093
rule_files:
  # - "first_rules.yml"
  # - "second_rules.yml"
scrape_configs:
  - job_name: 'prometheus'
    static_configs:
    - targets: ['localhost:9090']

  - job_name: 'server'
    static_configs:
    - targets: ['192.168.1.101:30010','192.168.1.102:30010']
      labels:
        env: prod
        
  - job_name: 'oracle'
    static_configs:
      - targets: ['192.168.88.11:9161']
    scrape_interval: 14400s  #独立抓取间隔
    scrape_timeout: 600s     #独立超时时间
    

这一部分就是新加的

  - job_name: 'server'
    static_configs:
    - targets: ['192.168.1.101:30010','192.168.1.102:30010']
      labels:
        env: prod

重启prometheus 后,进入监控页 http://xx.xx.xx.xx:9090/targets 查看

安装grafana(prometheus 的图形展示)

#下载并安装
https://grafana.com/grafana/download

#启动,并设置开机启动
systemctl daemon-reload
systemctl start grafana-server
systemctl enable grafana-server

#默认端口3000，默认用户和密码是admin
http://xx.xx.xx.xx:3000

进入后,点击add datasource，选中Prometheus 2.0 Stats后，就可以看到监控面板

官网上有很多大神提供的漂亮的监控页面
https://grafana.com/grafana/dashboards

每个都有自己的dashboard ID