# helm_charts_node.rules.yaml
{{- /*
Generated from 'node.rules' group from https://raw.githubusercontent.com/coreos/kube-prometheus/release-0.1/manifests/prometheus-rules.yaml
Do not change in-place! In order to change this file first read following link:
https://github.com/helm/charts/tree/master/stable/prometheus-operator/hack
*/ -}}
{{- $kubeTargetVersion := default .Capabilities.KubeVersion.GitVersion .Values.kubeTargetVersionOverride }}
{{- if and (semverCompare ">=1.10.0-0" $kubeTargetVersion) (semverCompare "<1.14.0-0" $kubeTargetVersion) .Values.defaultRules.create .Values.nodeExporter.enabled .Values.defaultRules.rules.node }}
apiVersion: monitoring.coreos.com/v1
kind: PrometheusRule
metadata:
  name: {{ printf "%s-%s" (include "prometheus-operator.fullname" .) "node.rules" | trunc 63 | trimSuffix "-" }}
  namespace: {{ template "prometheus-operator.namespace" . }}
  labels:
    app: {{ template "prometheus-operator.name" . }}
{{ include "prometheus-operator.labels" . | indent 4 }}
{{- if .Values.defaultRules.labels }}
{{ toYaml .Values.defaultRules.labels | indent 4 }}
{{- end }}
{{- if .Values.defaultRules.annotations }}
  annotations:
{{ toYaml .Values.defaultRules.annotations | indent 4 }}
{{- end }}
spec:
  groups:
  - name: node.rules
    rules:
    - expr: sum(min(kube_pod_info) by (node))
      record: ':kube_pod_info_node_count:'
    - expr: max(label_replace(kube_pod_info{job="kube-state-metrics"}, "pod", "$1", "pod", "(.*)")) by (node, namespace, pod)
      record: 'node_namespace_pod:kube_pod_info:'
    - expr: |-
        count by (node) (sum by (node, cpu) (
          node_cpu_seconds_total{job="node-exporter"}
        * on (namespace, pod) group_left(node)
          node_namespace_pod:kube_pod_info:
        ))
      record: node:node_num_cpu:sum
    - expr: 1 - avg(rate(node_cpu_seconds_total{job="node-exporter",mode="idle"}[1m]))
      record: :node_cpu_utilisation:avg1m
    - expr: |-
        1 - avg by (node) (
          rate(node_cpu_seconds_total{job="node-exporter",mode="idle"}[1m])
        * on (namespace, pod) group_left(node)
          node_namespace_pod:kube_pod_info:)
      record: node:node_cpu_utilisation:avg1m
    - expr: |-
        node:node_cpu_utilisation:avg1m
          *
        node:node_num_cpu:sum
          /
        scalar(sum(node:node_num_cpu:sum))
      record: node:cluster_cpu_utilisation:ratio
    - expr: |-
        sum(node_load1{job="node-exporter"})
        /
        sum(node:node_num_cpu:sum)
      record: ':node_cpu_saturation_load1:'
    - expr: |-
        sum by (node) (
          node_load1{job="node-exporter"}
        * on (namespace, pod) group_left(node)
          node_namespace_pod:kube_pod_info:
        )
        /
        node:node_num_cpu:sum
      record: 'node:node_cpu_saturation_load1:'
    - expr: |-
        1 -
        sum(node_memory_MemFree_bytes{job="node-exporter"} + node_memory_Cached_bytes{job="node-exporter"} + node_memory_Buffers_bytes{job="node-exporter"})
        /
        sum(node_memory_MemTotal_bytes{job="node-exporter"})
      record: ':node_memory_utilisation:'
    - expr: sum(node_memory_MemFree_bytes{job="node-exporter"} + node_memory_Cached_bytes{job="node-exporter"} + node_memory_Buffers_bytes{job="node-exporter"})
      record: :node_memory_MemFreeCachedBuffers_bytes:sum
    - expr: sum(node_memory_MemTotal_bytes{job="node-exporter"})
      record: :node_memory_MemTotal_bytes:sum
    - expr: |-
        sum by (node) (
          (node_memory_MemFree_bytes{job="node-exporter"} + node_memory_Cached_bytes{job="node-exporter"} + node_memory_Buffers_bytes{job="node-exporter"})
          * on (namespace, pod) group_left(node)
            node_namespace_pod:kube_pod_info:
        )
      record: node:node_memory_bytes_available:sum
    - expr: |-
        sum by (node) (
          node_memory_MemTotal_bytes{job="node-exporter"}
          * on (namespace, pod) group_left(node)
            node_namespace_pod:kube_pod_info:
        )
      record: node:node_memory_bytes_total:sum
    - expr: |-
        (node:node_memory_bytes_total:sum - node:node_memory_bytes_available:sum)
        /
        node:node_memory_bytes_total:sum
      record: node:node_memory_utilisation:ratio
    - expr: |-
        (node:node_memory_bytes_total:sum - node:node_memory_bytes_available:sum)
        /
        scalar(sum(node:node_memory_bytes_total:sum))
      record: node:cluster_memory_utilisation:ratio
    - expr: |-
        1e3 * sum(
          (rate(node_vmstat_pgpgin{job="node-exporter"}[1m])
         + rate(node_vmstat_pgpgout{job="node-exporter"}[1m]))
        )
      record: :node_memory_swap_io_bytes:sum_rate
    - expr: |-
        1 -
        sum by (node) (
          (node_memory_MemFree_bytes{job="node-exporter"} + node_memory_Cached_bytes{job="node-exporter"} + node_memory_Buffers_bytes{job="node-exporter"})
        * on (namespace, pod) group_left(node)
          node_namespace_pod:kube_pod_info:
        )
        /
        sum by (node) (
          node_memory_MemTotal_bytes{job="node-exporter"}
        * on (namespace, pod) group_left(node)
          node_namespace_pod:kube_pod_info:
        )
      record: 'node:node_memory_utilisation:'
    - expr: 1 - (node:node_memory_bytes_available:sum / node:node_memory_bytes_total:sum)
      record: 'node:node_memory_utilisation_2:'
    - expr: |-
        1e3 * sum by (node) (
          (rate(node_vmstat_pgpgin{job="node-exporter"}[1m])
         + rate(node_vmstat_pgpgout{job="node-exporter"}[1m]))
         * on (namespace, pod) group_left(node)
           node_namespace_pod:kube_pod_info:
        )
      record: node:node_memory_swap_io_bytes:sum_rate
    - expr: avg(irate(node_disk_io_time_seconds_total{job="node-exporter",device=~"nvme.+|rbd.+|sd.+|vd.+|xvd.+|dm-.+"}[1m]))
      record: :node_disk_utilisation:avg_irate
    - expr: |-
        avg by (node) (
          irate(node_disk_io_time_seconds_total{job="node-exporter",device=~"nvme.+|rbd.+|sd.+|vd.+|xvd.+|dm-.+"}[1m])
        * on (namespace, pod) group_left(node)
          node_namespace_pod:kube_pod_info:
        )
      record: node:node_disk_utilisation:avg_irate
    - expr: avg(irate(node_disk_io_time_weighted_seconds_total{job="node-exporter",device=~"nvme.+|rbd.+|sd.+|vd.+|xvd.+|dm-.+"}[1m]))
      record: :node_disk_saturation:avg_irate
    - expr: |-
        avg by (node) (
          irate(node_disk_io_time_weighted_seconds_total{job="node-exporter",device=~"nvme.+|rbd.+|sd.+|vd.+|xvd.+|dm-.+"}[1m])
        * on (namespace, pod) group_left(node)
          node_namespace_pod:kube_pod_info:
        )
      record: node:node_disk_saturation:avg_irate
    - expr: |-
        max by (instance, namespace, pod, device) ((node_filesystem_size_bytes{fstype=~"ext[234]|btrfs|xfs|zfs"}
        - node_filesystem_avail_bytes{fstype=~"ext[234]|btrfs|xfs|zfs"})
        / node_filesystem_size_bytes{fstype=~"ext[234]|btrfs|xfs|zfs"})
      record: 'node:node_filesystem_usage:'
    - expr: max by (instance, namespace, pod, device) (node_filesystem_avail_bytes{fstype=~"ext[234]|btrfs|xfs|zfs"} / node_filesystem_size_bytes{fstype=~"ext[234]|btrfs|xfs|zfs"})
      record: 'node:node_filesystem_avail:'
    - expr: |-
        sum(irate(node_network_receive_bytes_total{job="node-exporter",device!~"veth.+"}[1m])) +
        sum(irate(node_network_transmit_bytes_total{job="node-exporter",device!~"veth.+"}[1m]))
      record: :node_net_utilisation:sum_irate
    - expr: |-
        sum by (node) (
          (irate(node_network_receive_bytes_total{job="node-exporter",device!~"veth.+"}[1m]) +
          irate(node_network_transmit_bytes_total{job="node-exporter",device!~"veth.+"}[1m]))
        * on (namespace, pod) group_left(node)
          node_namespace_pod:kube_pod_info:
        )
      record: node:node_net_utilisation:sum_irate
    - expr: |-
        sum(irate(node_network_receive_drop_total{job="node-exporter",device!~"veth.+"}[1m])) +
        sum(irate(node_network_transmit_drop_total{job="node-exporter",device!~"veth.+"}[1m]))
      record: :node_net_saturation:sum_irate
    - expr: |-
        sum by (node) (
          (irate(node_network_receive_drop_total{job="node-exporter",device!~"veth.+"}[1m]) +
          irate(node_network_transmit_drop_total{job="node-exporter",device!~"veth.+"}[1m]))
        * on (namespace, pod) group_left(node)
          node_namespace_pod:kube_pod_info:
        )
      record: node:node_net_saturation:sum_irate
    - expr: |-
        max(
          max(
            kube_pod_info{job="kube-state-metrics", host_ip!=""}
          ) by (node, host_ip)
          * on (host_ip) group_right (node)
          label_replace(
            (max(node_filesystem_files{job="node-exporter", mountpoint="/"}) by (instance)), "host_ip", "$1", "instance", "(.*):.*"
          )
        ) by (node)
      record: 'node:node_inodes_total:'
    - expr: |-
        max(
          max(
            kube_pod_info{job="kube-state-metrics", host_ip!=""}
          ) by (node, host_ip)
          * on (host_ip) group_right (node)
          label_replace(
            (max(node_filesystem_files_free{job="node-exporter", mountpoint="/"}) by (instance)), "host_ip", "$1", "instance", "(.*):.*"
          )
        ) by (node)
      record: 'node:node_inodes_free:'
{{- end }}