安装prometheus

一、说明

使用docker-compose 安装prometheus + grafana

二、安装docker、docker-compose

参考 https://www.jianshu.com/p/f77e5d01e9cb

三、安装prometheus

1、安装目录准备

cd /home/xxxx
mkdir -p prometheus
chmod 777 prometheus
cd prometheus
mkdir -p grafana_data prometheus_data
chmod 777 grafana_data prometheus_data

2、编写docker-compose文件

vim docker-compose.yml

version: "3.7"
services:
  node-exporter:
    image: prom/node-exporter:latest
    container_name: "node-exporter0"
    ports:
      - "9100:9100"
    restart: always
  prometheus:
    image: prom/prometheus:latest
    container_name: "prometheus0"
    restart: always
    ports:
      - "9090:9090"
    volumes:
      - "./prometheus.yml:/etc/prometheus/prometheus.yml"
      - "./prometheus_data:/prometheus"
  grafana:
    image: grafana/grafana
    container_name: "grafana0"
    ports:
      - "3000:3000"
    restart: always
    volumes:
      - "./grafana_data:/var/lib/grafana"

3、编写prometheus.yml文件

vim prometheus.yml

global:
  scrape_interval:     15s # 默认抓取周期
  external_labels:
    monitor: 'codelab-monitor'
scrape_configs:
  - job_name: 'node-exporter' #服务的名称
    scrape_interval: 5s
    metrics_path: /metrics  #获取指标的url
    static_configs:
      - targets: ['localhost:9100'] # 这个为监听指定服务服务的ip和port，需要修改为自己的ip，貌似云服务必须用公网ip

4、启动

docker-compose up -d

5、访问

localhost:9090 #普罗米修斯的监控页面
localhost:3000 #grafana界面，admin/admin