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一、基础

二、安装consul

下载地址

https://developer.hashicorp.com/consul/install

启动consul

mkdir -p /app/consul/{data,etc,bin}
unzip /home/devops/consul_1.17.2_linux_amd64.zip -d /app/consul/bin/
ln -sv /app/consul/bin/consul /usr/local/bin/consul
consul -v
cd /app/consul/
nohup consul agent -dev -ui -data-dir=/app/consul/data/ -config-dir=/app/consul/etc/ -client=0.0.0.0 &

访问consul

http://IP:8500/ui/

三、编写服务发现文件nodes.json

vim /app/consul/etc/nodes.json

{"services":[{"id":"node exporter-node01","name": "node01","address":"192.168.1.31","port": 10050,"tags": ["nodes"] ,"checks": [{"http":"http://192.168.1.31:10050/metrics","interval":"5s"}]},{"id":"node exporter-node02","name": "node02","address":"192.168.1.34","port": 10050,"tags": ["nodes"] ,"checks": [{"http":"http://192.168.1.34:10050/metrics","interval":"5s"}]},{"id":"node exporter-node03","name": "node03","address":"192.168.1.36","port": 10050,"tags": ["nodes"] ,"checks": [{"http":"http://192.168.1.36:10050/metrics","interval":"5s"}]}]
}

consul reload #加载配置文件

四、prometheus配置consul发现

修改prometheus.yml

增加如下配置

- job_name: "nodes"consul_sd_configs:- server: 192.168.1.34:8500tags:- "nodes"refresh_interval: 2m

重启Prometheus

systemctl restart prometheus
可以发现现在获取的Targets里面有consul的字段

参考

https://www.bilibili.com/video/BV1PT4y1P7bX/?from=search&seid=851756632097160928