prometheus.yml

global:
    # How frequently to scrape targets
    scrape_interval:     10s
    # How frequently to evaluate rules
    evaluation_interval: 10s

   # Rules and alerts are read from the specified file(s)
   rule_files:
    - rules.yml

   # Alerting specifies settings related to the Alertmanager
   alerting:
    alertmanagers:
      - static_configs:
        - targets:
          # Alertmanager's default port is 9093
          - localhost:9093

   # A list of scrape configurations that specifies a set of
   # targets and parameters describing how to scrape them.
   scrape_configs:
    - job_name: 'prometheus'
      scrape_interval: 5s
      static_configs:
        - targets:
          - localhost:9090
    - job_name: 'node_exporter'
      scrape_interval: 5s
      static_configs:
        - targets:
          - localhost:9100
    - job_name: 'prom_middleware'
      scrape_interval: 5s
      static_configs:
        - targets:
          - localhost:9091