{{- /*
Copyright Broadcom, Inc. All Rights Reserved.
SPDX-License-Identifier: APACHE-2.0
*/}}

{{- if and .Values.prometheus.enabled .Values.prometheus.defaultRules.create .Values.prometheus.defaultRules.rules.nodeExporterRecording }}
apiVersion: monitoring.coreos.com/v1
kind: PrometheusRule
metadata:
  name: {{ printf "%s-node-exporter.rules" (include "kube-prometheus.prometheus.fullname" .) }}
  namespace: {{ include "common.names.namespace" . | quote }}
  labels: {{ include "kube-prometheus.prometheus.labels" . | nindent 4 }}
  {{- if .Values.commonAnnotations }}
  annotations: {{- include "common.tplvalues.render" ( dict "value" .Values.commonAnnotations "context" . ) | nindent 4 }}
  {{- end }}
spec:
  groups:
    - name: node-exporter.rules
      rules:
        - expr: |-
            count without (cpu, mode) (
              node_cpu_seconds_total{job="node-exporter",mode="idle"}
            )
          record: instance:node_num_cpu:sum
        - expr: |-
            1 - avg without (cpu) (
              sum without (mode) (rate(node_cpu_seconds_total{job="node-exporter", mode=~"idle|iowait|steal"}[5m]))
            )
          record: instance:node_cpu_utilisation:rate5m
        - expr: |-
            (
              node_load1{job="node-exporter"}
            /
              instance:node_num_cpu:sum{job="node-exporter"}
            )
          record: instance:node_load1_per_cpu:ratio
        - expr: |-
            1 - (
              (
                node_memory_MemAvailable_bytes{job="node-exporter"}
                or
                (
                  node_memory_Buffers_bytes{job="node-exporter"}
                  +
                  node_memory_Cached_bytes{job="node-exporter"}
                  +
                  node_memory_MemFree_bytes{job="node-exporter"}
                  +
                  node_memory_Slab_bytes{job="node-exporter"}
                )
              )
            /
              node_memory_MemTotal_bytes{job="node-exporter"}
            )
          record: instance:node_memory_utilisation:ratio
        - expr: rate(node_vmstat_pgmajfault{job="node-exporter"}[5m])
          record: instance:node_vmstat_pgmajfault:rate5m
        - expr: rate(node_disk_io_time_seconds_total{job="node-exporter", device=~"(/dev/)?(mmcblk.p.+|nvme.+|rbd.+|sd.+|vd.+|xvd.+|dm-.+|md.+|dasd.+)"}[5m])
          record: instance_device:node_disk_io_time_seconds:rate5m
        - expr: rate(node_disk_io_time_weighted_seconds_total{job="node-exporter", device=~"(/dev/)?(mmcblk.p.+|nvme.+|rbd.+|sd.+|vd.+|xvd.+|dm-.+|md.+|dasd.+)"}[5m])
          record: instance_device:node_disk_io_time_weighted_seconds:rate5m
        - expr: |-
            sum without (device) (
              rate(node_network_receive_bytes_total{job="node-exporter", device!="lo"}[5m])
            )
          record: instance:node_network_receive_bytes_excluding_lo:rate5m
        - expr: |-
            sum without (device) (
              rate(node_network_transmit_bytes_total{job="node-exporter", device!="lo"}[5m])
            )
          record: instance:node_network_transmit_bytes_excluding_lo:rate5m
        - expr: |-
            sum without (device) (
              rate(node_network_receive_drop_total{job="node-exporter", device!="lo"}[5m])
            )
          record: instance:node_network_receive_drop_excluding_lo:rate5m
        - expr: |-
            sum without (device) (
              rate(node_network_transmit_drop_total{job="node-exporter", device!="lo"}[5m])
            )
          record: instance:node_network_transmit_drop_excluding_lo:rate5m
{{- end }}
