二进制部署prometheus

下载并解压

wget https://github.com/prometheus/prometheus/releases/download/v2.37.0/prometheus-2.37.0.linux-amd64.tar.gz
tar xvf prometheus-2.37.0.linux-amd64.tar.gz

创建软连接

ln -sv /apps/prometheus-2.37.0.linux-amd64 /apps/prometheus

配置自动启动

--web.enable-lifecycle：配置热加载

cat /etc/systemd/system/prometheus.service
[Unit]
Description=Prometheus Server
Documentation=https://prometheus.io/docs/introduction/overview/
After=network.target

[Service]
Restart=on-failure
WorkingDirectory=/apps/prometheus/
ExecStart=/apps/prometheus/prometheus   --config.file=/apps/prometheus/prometheus.yml --web.enable-lifecycle

[Install]
WantedBy=multi-user.target

启动

systemctl daemon-reload
systemctl restart prometheus
systemctl enable prometheus

查看端口

netstat -tunlp

热加载操作方法，修改完配置之后直接执行curl

curl -X POST http://10.0.0.9:9090/-/reload

安装node_exporter

wget https://github.com/prometheus/node_exporter/releases/download/v1.3.1/node_exporter-1.3.1.linux-amd64.tar.gz
tar xvf node_exporter-1.3.1.linux-amd64.tar.gz 
ln -sv /apps/node_exporter-1.3.1.linux-amd64 /apps/node_exporter

启动

cd /apps/node_exporter
./node_exporter

修改prometheus.yml，添加主机10.0.0.13端口好9100

vim /apps/prometheus/prometheus.yml 
    static_configs:
      - targets: ["localhost:9090","10.0.0.13:9100"]

加载配置

curl -X POST http://10.0.0.9:9090/-/reload

浏览器访问下prometheus，可以看到多了一台10.0.0.13

配置一个node_exporter自动启动

[root@VM-0-13-centos ~]# cat /etc/systemd/system/node-exporter.service
[Unit]
Description=Prometheus Node Exporter
After=network.target

[Service]
ExecStart=/apps/node_exporter/node_exporter

[Install]
WantedBy=multi-user.target

systemctl start node-exporter.service
systemctl enable node-exporter.service

prometheus.yml可以添加多个job_name

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","10.0.0.13:9100"]
  
  - job_name: "prometheus-node"
    static_configs:
      - targets: ["10.0.0.12:9090","10.0.0.11:9100"]

安装Grafana

wget https://dl.grafana.com/enterprise/release/grafana-enterprise-8.5.4-1.x86_64.rpm
yum install grafana-enterprise-8.5.4-1.x86_64.rpm
systemctl restart grafana-server.service
systemctl enable grafana-server.service

浏览器访问http://IP:9090 账号密码 admin. admin

添加数据源