global:
  scrape_interval: ${PROMETHEUS_SCRAPE_INTERVAL}s
  evaluation_interval: ${PROMETHEUS_EVALUATION_INTERVAL}s
  external_labels:
    cluster: '${PROMETHEUS_CLUSTER_NAME}'

# 远程写入配置 - 接收来自边缘节点的数据
remote_write:
  - url: http://victoria-metrics:${VICTORIAMETRICS_PORT}/api/v1/write
    queue_config:
      max_samples_per_send: ${PROMETHEUS_REMOTE_WRITE_MAX_SAMPLES}
      capacity: ${PROMETHEUS_REMOTE_WRITE_CAPACITY}
      max_shards: ${PROMETHEUS_REMOTE_WRITE_MAX_SHARDS}

# 抓取配置 - 主要抓取本地服务
scrape_configs:
  # 抓取中央Prometheus自身
  - job_name: 'prometheus-central'
    scrape_interval: ${PROMETHEUS_SCRAPE_INTERVAL}s
    static_configs:
      - targets: ['prometheus-central:9090']

  # 抓取VictoriaMetrics (VictoriaMetrics 提供 /metrics 端点)
  - job_name: 'victoria-metrics'
    scrape_interval: ${PROMETHEUS_SCRAPE_INTERVAL}s
    metrics_path: '/metrics'
    static_configs:
      - targets: ['victoria-metrics:${VICTORIAMETRICS_PORT}']

  # 抓取Alertmanager
  - job_name: 'alertmanager'
    scrape_interval: ${PROMETHEUS_SCRAPE_INTERVAL}s
    static_configs:
      - targets: ['alertmanager:9093']

  # 抓取Grafana (需要启用 metrics 功能)
  - job_name: 'grafana'
    scrape_interval: ${PROMETHEUS_SCRAPE_INTERVAL}s
    metrics_path: '/metrics'
    static_configs:
      - targets: ['grafana:3000']

# 告警规则配置
rule_files:
  - "alert_rules.yml"

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