Prometheus的搭建

1、下载、解压、软连接（下载特别慢）
#  tar xf prometheus-2.16.0.linux-amd64.tar.gz  -C  /usr/local/ 
#  tar  -xvf  prometheus-2.16.0.linux-amd64.tar.gz  -C  /usr/local/
#  mv /usr/local/prometheus-2.16.0.linux-amd64/  /usr/local/prometheus
#  cd /usr/local/prometheus/

#./prometheus --version
prometheus, version 2.16.0 (branch: HEAD, revision: b90be6f32a33c03163d700e1452b54454ddce0ec)
  build user:       root@7ea0ae865f12
  build date:       20200213-23:50:02
  go version:       go1.13.8  （此处go语言环境，没提前准备）

#./prometheus & 也可以启动

 # cat prometheus.yml

# 全局配置

global:
  scrape_interval:     15s # 设置抓取间隔，默认为1分钟
  evaluation_interval: 15s #估算规则的默认周期，每15秒计算一次规则。默认1分钟
  # scrape_timeout  #默认抓取超时，默认为10s

# Alertmanager相关配置
alerting:
  alertmanagers:
  - static_configs:
    - targets:
      # - alertmanager:9093

# 规则文件列表，使用‘evaluation_interval‘ 参数去抓取
rule_files:
  # - "first_rules.yml"
  # - "second_rules.yml"

#  抓取配置列表
scrape_configs:
  - job_name: ‘prometheus‘
    static_configs:
    - targets: [‘localhost:9090‘]

# 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     

# systemctl daemon-reload
#systemctl enable prometheus
#systemctl start prometheus