配置文件

指标说明

1、Prometheus以scrape_interval规则周期性从监控目标上收集数据，然后将数据存储到本地存储上。
2、scrape_interval可以设定全局也可以设定单个metrics。
3、Prometheus以evaluation_interval规则周期性对告警规则做计算，然后更新告警状态。
4、evaluation_interval只有设定在全局。
global：全局配置
alerting：告警配置
rule_files：告警规则
scrape_configs：配置数据源，称为target，每个target用job_name命名。又分为静态配置和服务发现
# my global config
global:
  scrape_interval: 15s # Set the scrape interval to every 15 seconds. Default is every 1 minute.
  evaluation_interval: 15s # Evaluate rules every 15 seconds. The default is every 1 minute.
  # scrape_timeout is set to the global default (10s).

# Alertmanager configuration
alerting:
  alertmanagers:
    - static_configs:
        - targets:
          # - alertmanager:9093

# Load rules once and periodically evaluate them according to the global 'evaluation_interval'.
rule_files:
  # - "first_rules.yml"
  # - "second_rules.yml"

# A scrape configuration containing exactly one endpoint to scrape:
# Here it's Prometheus itself.
scrape_configs:
  # The job name is added as a label `job=<job_name>` to any timeseries scraped from this config.
  - job_name: "prometheus"

    # metrics_path defaults to '/metrics'
    # scheme defaults to 'http'.

    static_configs:
      - targets: ["localhost:9090"]