联邦模式配置

1.prometheus联邦模式架构概述
默认情况下，prometheus采集的数据会存储到本地，这意味者prometheus在这种工作模式下，可能会存在单机存储的瓶颈。为了解决prometheus对于数据的采集压力，我们可以采用联邦模式来部署prometheus。

这里 91,92,93 节点分别对应本篇的 211,212,213 节点

联邦模式Prometheus server

2.部署Prometheus的集群环境

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1. 212,213节点部署Prometheus
  略，步骤见01-Prometheus介绍及部署

`212节点`
2. 212节点配置Prometheus
[root@elk02:1 ~]# vim /softwares/prometheus-2.53.2.linux-amd64/prometheus.yml 
···
  - job_name: 'file-sd-discovery-212'
    file_sd_configs:
      - files:
        - /softwares/prometheus-2.53.2.linux-amd64/file-sd.yaml

3. 编写Prometheus的基于文件服务的发现
[root@elk02:0 ~]# cat > /softwares/prometheus-2.53.2.linux-amd64/file-sd.yaml <<EOF
- targets:
  - 10.0.0.211:9100
  labels:
    "tag": "elk01"
    "apps": "yaml"
EOF

4. 检查Prometheus语法
[root@elk02:0 ~]# /softwares/prometheus-2.53.2.linux-amd64/promtool check config /softwares/prometheus-2.53.2.linux-amd64/prometheus.yml 

5.Prometheus热加载
[root@elk02:0 ~]# curl -X POST http://10.0.0.212:9090/-/reload

6.访问Prometheus的WebUI
http://10.0.0.212:9090/targets?search=

`213节点`
1. 213 节点配置Prometheus
[root@elk03:1 ~]# vim /softwares/prometheus-2.53.2.linux-amd64/prometheus.yml 
···
  - job_name: 'file-sd-discovery-212'
    file_sd_configs:
      - files:
        - /softwares/prometheus-2.53.2.linux-amd64/file-sd.yaml

2.编写Prometheus的基于文件服务的发现
[root@elk03:0 ~]# cat > /softwares/prometheus-2.53.2.linux-amd64/file-sd.yaml <<EOF
- targets:
  - 10.0.0.212:9100
  - 10.0.0.213:9100
  labels:
    "tag": "elk02/03"
    "apps": "yaml"
EOF

3. 检查Prometheus语法
[root@elk03:0 ~]# /softwares/prometheus-2.53.2.linux-amd64/promtool check config /softwares/prometheus-2.53.2.linux-amd64/prometheus.yml 

4.Prometheus热加载
[root@elk03:0 ~]# curl -X POST http://10.0.0.213:9090/-/reload

5.访问Prometheus的WebUI
http://10.0.0.213:9090/targets?search=

3.修改211节点配置

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1.修改Prometheus配置文件
[root@elk01:0 ~]# vim /softwares/prometheus-2.53.2.linux-amd64/prometheus.yml 
···
  - job_name: "prometheus-federate-212"
    metrics_path: "/federate"
    honor_labels: true
    params:
       "match[]":
       - '{job="promethues"}'
       - '{__name__=~"job:.*"}'
       - '{__name__=~"node.*"}'
    static_configs:
    - targets:
        - "10.0.0.212:9090"

  - job_name: "prometheus-federate-213"
    metrics_path: "/federate"
    honor_labels: true
    params:
       "match[]":
       - '{job="promethues"}'
       - '{__name__=~"job:.*"}'
       - '{__name__=~"node.*"}'
    static_configs:
    - targets:
        - "10.0.0.213:9090"


2.检查Prometheus语法
3.Prometheus热加载

4.验证

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213上可查询的语法（可自行访问212或者213的Prometheus的WebUI界面找到promQL语法查询放在211节点上验证）
node_cpu_seconds_total{apps="yaml", cpu="0", job="file-sd-discovery-213"}

在211上查询是否有结果

image-20241128112719771