prometheus监控部署

1.部署Prometheus

下载新版本Prometheus，https://github.com/prometheus/prometheus/releases/download/v2.23.0/prometheus-2.23.0.linux-amd64.tar.gz

解压，启动

tar xvfz prometheus-*.tar.gz
cd prometheus-*
./prometheus --config.file=prometheus.yml

浏览器打开http://localhost:9090/graph访问web界面，输入promhttp_metric_handler_requests_total查询Prometheus指标。

2.部署grafana

下载安装grafana

wget https://dl.grafana.com/oss/release/grafana-7.3.6-1.x86_64.rpm
rpm -ivh grafana-7.3.6-1.x86_64.rpm
systemctl start grafana-server

　登陆grafana，http://localhost:3000/login，初始用户密码为admin/admin，登陆之后需要修改密码。

3.在grafana添加Prometheus数据源