Prometheus+Grafana 入门

Prometheus

安装

1. 下载：https://github.com/prometheus/prometheus/releases/download/v2.29.1/prometheus-2.29.1.linux-amd64.tar.gz

2. 上传到服务器，解压

   tar -xvzf prometheus-2.29.1.linux-amd64.tar.gz
   mv prometheus-2.29.1.linux-amd64 prometheus

3. 安装node_exporter，下载：https://github.com/prometheus/node_exporter/releases/download/v1.3.1/node_exporter-1.3.1.linux-amd64.tar.gz

   上传到服务器，解压并启动

   tar -zvxf node_exporter-1.3.1.linux-amd64.tar.gz
   mv node_exporter-1.3.1.linux-amd64/  node_exporter
   nohup /usr/local/node_exporter/node_exporter &
   #检查是否启动
   netstat -nltp |grep 9100

4. 修改Prometheus配置文件prometheus.yml

   

5. 启动

   ./prometheus --config.file="prometheus.yml" &
   #检查是否启动
   ps -ef |grep prometheus

使用

访问地址：http://192.168.0.153:9090/

Targets

点开 http://192.168.0.153:9100/metrics，展示各种指标

Graph

上面的指标可以在这里以表格/折线图的形式查询

Grafana

安装

1. 下载：https://dl.grafana.com/oss/release/grafana-9.2.3.linux-amd64.tar.gz

2. 上传到服务器，解压

   tar -zvxf grafana-9.2.3.linux-amd64.tar.gz
   mv grafana-9.2.3/ grafana/

3. 创建Grafana服务

   cat > /usr/lib/systemd/system/grafana-server.service <<EOF
   [Unit]
   Description=Grafana
   After=network.target
   [Service]
   Type=notify
   ExecStart=/usr/local/grafana/bin/grafana-server -homepath /usr/local/grafana
   Restart=on-failure
   [Install]
   WantedBy=multi-user.target
   EOF

4. 启动

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

使用

http://192.168.0.153:3000/

默认账户/密码：admin/admin

1. 配置数据源

   

   

2. 导入Dashboard

   

   如导入id为9276的Dashboard：https://grafana.com/grafana/dashboards/9276-1-cpu/

   

   

整合SpringBoot应用

1. 引入依赖

   <dependency>
     <groupId>org.springframework.boot</groupId>
     <artifactId>spring-boot-starter-actuator</artifactId>
   </dependency>
   <dependency>
     <groupId>io.micrometer</groupId>
     <artifactId>micrometer-registry-prometheus</artifactId>
     <version>1.7.2</version>
   </dependency>

2. 增加配置

   management.endpoints.web.exposure.include=*

3. 开放actuator endpoint

   

4. 重启，检查actuator endpoint是否生效

   

5. 修改Prometheus配置

   scrape_configs:
     - job_name: "prometheus"
       # metrics_path defaults to '/metrics'
       # scheme defaults to 'http'.
       static_configs:
         - targets: ["localhost:9090","192.168.0.153:9100"]
     - job_name: "data-fill"
       scrape_interval: 5s #每5s抓取一次
       metrics_path: '/api/actuator/prometheus'  #抓取的数据url
       static_configs:
         - targets: ["192.168.0.153:6868"]

6. 导入Dashboard

   id：4701 https://grafana.com/grafana/dashboards/4701-jvm-micrometer/