CentOS7部署Prometheus

wget https://github.com/prometheus/prometheus/releases/download/v2.18.1/prometheus-2.18.1.linux-amd64
tar xzvf prometheus-2.18.1.linux-amd64.tar.gz
mv prometheus-2.18.1.linux-amd64 /usr/local/
ln -s /usr/local/prometheus-2.18.1.linux-amd64/ /usr/local/prometheus

scrape_interval:     15s   # 设置抓取间隔，默认为1分钟
evaluation_interval: 15s   #估算规则的默认周期，每15秒计算一次规则。默认1分钟

#创建用户
useradd  -s /sbin/nologin -M prometheus 
mkdir  /data/prometheus -p
#修改目录属主
chown -R prometheus:prometheus /usr/local/prometheus/
chown -R prometheus:prometheus /data/prometheus/

[Unit]
Description=Prometheus
Documentation=https://prometheus.io/
After=network.target
[Service]
Type=simple
User=prometheus
ExecStart=/usr/local/prometheus/prometheus --config.file=/usr/local/prometheus/prometheus.yml --storage.tsdb.path=/data/prometheus
Restart=on-failure
[Install]
WantedBy=multi-user.target

在service文件里面，定义了启动的命令，定义了数据存储在/data/prometheus路径下，否则默认会在prometheus二进制的data目录下。
启动prometheus服务

systemctl start prometheus
systemctl enable prometheus