https://www.cnblogs.com/sonyy/p/13157153.html
./services/prometheus/prometheus.yml
global: scrape_interval: 15s evaluation_interval: 15s scrape_configs:
- job_name: 'prometheus'
static_configs:
- targets: ['localhost:9090']
- job_name: 'server'
static_configs:
- targets: ['node-exporter:9100']