prometheus集群搭建

要搭建Prometheus集群，可以按照以下步骤进行操作：

1. 在三个Prometheus节点上分别部署Prometheus主服务器和Prometheus联邦。在各个节点上执行以下命令：
- 创建Prometheus连接：`ln -sv /opt/prometheus/prometheus-2.36.2.linux-amd64 /opt/prometheus/prometheus`
- 添加Prometheus启动脚本：编辑`/etc/systemd/system/prometheus.service`文件，并添加以下内容：

     [Unit]
     Description=Prometheus Server
     Documentation=https://prometheus.io/docs/introduction/overview/
     After=network.target
     
     [Service]
     Restart=on-failure
     WorkingDirectory=/opt/prometheus/prometheus/
     ExecStart=/opt/prometheus/prometheus/prometheus --config.file=/opt/prometheus/prometheus/prometheus.yml
     
     [Install]
     WantedBy=multi-user.target

- 启动Prometheus：`systemctl restart prometheus`
- 设置开机启动：`systemctl enable prometheus`

2. 配置联邦节点到node节点抓取数据。在Prometheus服务器上编辑`prometheus.yml`配置文件，添加以下内容：

   - job_name: 'prometheus-federate-2.61'
     scrape_interval: 10s
     honor_labels: true
     metrics_path: '/federate'
     params:
       'match[]':
         - '{job="prometheus"}'
         - '{__name__=~"job:.*"}'
         - '{__name__=~"node.*"}'
     static_configs:
       - targets: ["10.19.2.61:9090"]
   
   - job_name: 'prometheus-federate-2.62'
     scrape_interval: 10s
     honor_labels: true
     metrics_path: '/federate'
     params:
       'match[]':
         - '{job="prometheus"}'
         - '{__name__=~"job:.*"}'
         - '{__name__=~"node.*"}'
     static_configs:
       - targets: ["10.19.2.62:9090"]

3. 检查配置文件语法：执行命令`./promtool check config ./prometheus.yml`来验证配置文件的语法是否正确。

4. 重启Prometheus：执行命令`systemctl restart prometheus`来使配置生效。

通过以上步骤，你可以搭建一个Prometheus集群。 <span class="em">1</span><span class="em">2</span><span class="em">3</span>
#### 引用[.reference_title]
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