prometheus以及grafana的安装介绍

准备工作

下载

wget https://github.com/prometheus/prometheus/releases/download/v2.19.2/prometheus-2.19.2.linux-amd64.tar.gz
wget https://github.com/prometheus/node_exporter/releases/download/v1.0.1/node_exporter-1.0.1.linux-amd64.tar.gz

官方文档

https://songjiayang.gitbooks.io/prometheus/content/

第三方exporter，本次示例只以node_exporter为例

https://prometheus.io/docs/instrumenting/exporters/

启动node_exporter

1. 解压tar.gz的包，并放到/usr/local/下

   tar xzvf node_exporter-1.0.1.linux-amd64.tar.gz
   mv node_exporter-1.0.1.linux-amd64 /usr/local/node_exporter
   

2. 编写systemd配置文件

   [root@home prometheus]$ cat /etc/systemd/system/node_exporter.service
   [Unit]
   Description=Node_exporter
   After=network.target
   [Service]
   Type=simple
   ExecStart=/usr/local/node_exporter/node_exporter
   Restart=on-failure
   [Install]
   WantedBy=multi-user.target
   

3. 启动node_export

   systemctl daemon-reload && systemctl start node_exporter && systemctl status node_exporter
   

启动prometheus

1. 解压tar.gz的包，并放到/usr/local/目录下

   tar xzvf prometheus-2.19.2.linux-amd64.tar.gz && mv prometheus-2.19.2.linux-amd64 /usr/local/prometheus
   

2. 配置prometheus.yml文件

   # A scrape configuration containing exactly one endpoint to scrape:
   # Here it's Prometheus itself.
   scrape_configs:
     # The job name is added as a label `job=<job_name>` to any timeseries scraped from this config.
     - job_name: 'prometheus'
   
       # metrics_path defaults to '/metrics'
       # scheme defaults to 'http'.
   
       static_configs:
       - targets: ['localhost:9090']
     ## 如果需要增加额外的exporter，直接在该文件中填写以下2行，重启prometheus即可
     - job_name: 'node_exporter'
       static_configs:
       - targets: ['localhost:9100']
   

3. 编写systemd文件

   root@home local]$ cat /etc/systemd/system/prometheus.service
   [Unit]
   Description=Prometheus
   Documentation=https://prometheus.io/
   After=network.target
   [Service]
   Type=simple
   ExecStart=/usr/local/prometheus/prometheus --config.file=/usr/local/prometheus/prometheus.yml --storage.tsdb.path=/usr/local/prometheus/data
   Restart=on-failure
   [Install]
   WantedBy=multi-user.target
   

4. 启动prometheus

   systemctl daemon-reload && systemctl start prometheus && systemctl status prometheus
   

启动grafana

1. 下载grafana的rpm包

    wget https://dl.grafana.com/oss/release/grafana-7.1.0-1.x86_64.rpm && yum localinstall grafana-7.1.0-1.x86_64.rpm
   

2. 启动grafana

   systemctl daemon-reload && systemctl start grafana-server
   

3. 登录grafana，并设置prometheus为数据源

   

4. 查看dashborad，并导入好看的dashboard，好看的dashboard可以去官网找