apiVersion: v1
kind: ConfigMap
metadata:
  annotations:
    meta.helm.sh/release-name: observability-server
    meta.helm.sh/release-namespace: monitoring
  labels:
    app.kubernetes.io/component: server
    app.kubernetes.io/instance: observability-server
    app.kubernetes.io/managed-by: Helm
    app.kubernetes.io/name: prometheus
    app.kubernetes.io/part-of: prometheus
    app.kubernetes.io/version: v2.48.1
    helm.sh/chart: prometheus-25.8.2
  name: observability-server-prometheus-server
  namespace: monitoring
data:
  recording_rules.yml: |
    groups:
      - name: host-monitoring
        rules:
        - record: node_load1
          expr: node_load1
        - record: node_cpu_usage
          expr: 100 - (avg by (instance) (irate(node_cpu_seconds_total{mode="idle"}[5m])) * 100)
        - record: node_memory_usage
          expr: (node_memory_MemTotal_bytes - node_memory_MemFree_bytes - node_memory_Buffers_bytes - node_memory_Cached_bytes) / node_memory_MemTotal_bytes * 100
        - record: node_disk_usage
          expr: 100 - (avg by (instance) (node_filesystem_avail_bytes{fstype="ext4"} / node_filesystem_size_bytes{fstype="ext4"}) * 100)