{{- /*
Generated from 'etcd' group from https://raw.githubusercontent.com/etcd-io/website/master/content/en/docs/v3.4/op-guide/etcd3_alert.rules.yml
Do not change in-place! In order to change this file first read following link:
https://github.com/prometheus-community/helm-charts/tree/main/charts/kube-prometheus-stack/hack
*/ -}}
{{- $kubeTargetVersion := default .Capabilities.KubeVersion.GitVersion .Values.kubeTargetVersionOverride }}
{{- if and (semverCompare ">=1.14.0-0" $kubeTargetVersion) (semverCompare "<9.9.9-9" $kubeTargetVersion) .Values.defaultRules.create .Values.kubeEtcd.enabled .Values.defaultRules.rules.etcd }}
apiVersion: monitoring.coreos.com/v1
kind: PrometheusRule
metadata:
  name: {{ printf "%s-%s" (include "kube-prometheus-stack.fullname" .) "etcd" | trunc 63 | trimSuffix "-" }}
  namespace: {{ template "kube-prometheus-stack.namespace" . }}
  labels:
    app: {{ template "kube-prometheus-stack.name" . }}
{{ include "kube-prometheus-stack.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: etcd
    rules:
    - alert: etcdInsufficientMembers
      annotations:
        message: 'etcd cluster "{{`{{`}} $labels.job {{`}}`}}": insufficient members ({{`{{`}} $value {{`}}`}}).'
      expr: sum(up{job=~".*etcd.*"} == bool 1) by (job) < ((count(up{job=~".*etcd.*"}) by (job) + 1) / 2)
      for: 3m
      labels:
        severity: critical
{{- if .Values.defaultRules.additionalRuleLabels }}
{{ toYaml .Values.defaultRules.additionalRuleLabels | indent 8 }}
{{- end }}
    - alert: etcdNoLeader
      annotations:
        message: 'etcd cluster "{{`{{`}} $labels.job {{`}}`}}": member {{`{{`}} $labels.instance {{`}}`}} has no leader.'
      expr: etcd_server_has_leader{job=~".*etcd.*"} == 0
      for: 1m
      labels:
        severity: critical
{{- if .Values.defaultRules.additionalRuleLabels }}
{{ toYaml .Values.defaultRules.additionalRuleLabels | indent 8 }}
{{- end }}
    - alert: etcdHighNumberOfLeaderChanges
      annotations:
        message: 'etcd cluster "{{`{{`}} $labels.job {{`}}`}}": instance {{`{{`}} $labels.instance {{`}}`}} has seen {{`{{`}} $value {{`}}`}} leader changes within the last hour.'
      expr: rate(etcd_server_leader_changes_seen_total{job=~".*etcd.*"}[15m]) > 3
      for: 15m
      labels:
        severity: warning
{{- if .Values.defaultRules.additionalRuleLabels }}
{{ toYaml .Values.defaultRules.additionalRuleLabels | indent 8 }}
{{- end }}
    - alert: etcdHighNumberOfFailedGRPCRequests
      annotations:
        message: 'etcd cluster "{{`{{`}} $labels.job {{`}}`}}": {{`{{`}} $value {{`}}`}}% of requests for {{`{{`}} $labels.grpc_method {{`}}`}} failed on etcd instance {{`{{`}} $labels.instance {{`}}`}}.'
      expr: |-
        100 * sum(rate(grpc_server_handled_total{job=~".*etcd.*", grpc_code!="OK"}[5m])) BY (job, instance, grpc_service, grpc_method)
          /
        sum(rate(grpc_server_handled_total{job=~".*etcd.*"}[5m])) BY (job, instance, grpc_service, grpc_method)
          > 1
      for: 10m
      labels:
        severity: warning
{{- if .Values.defaultRules.additionalRuleLabels }}
{{ toYaml .Values.defaultRules.additionalRuleLabels | indent 8 }}
{{- end }}
    - alert: etcdHighNumberOfFailedGRPCRequests
      annotations:
        message: 'etcd cluster "{{`{{`}} $labels.job {{`}}`}}": {{`{{`}} $value {{`}}`}}% of requests for {{`{{`}} $labels.grpc_method {{`}}`}} failed on etcd instance {{`{{`}} $labels.instance {{`}}`}}.'
      expr: |-
        100 * sum(rate(grpc_server_handled_total{job=~".*etcd.*", grpc_code!="OK"}[5m])) BY (job, instance, grpc_service, grpc_method)
          /
        sum(rate(grpc_server_handled_total{job=~".*etcd.*"}[5m])) BY (job, instance, grpc_service, grpc_method)
          > 5
      for: 5m
      labels:
        severity: critical
{{- if .Values.defaultRules.additionalRuleLabels }}
{{ toYaml .Values.defaultRules.additionalRuleLabels | indent 8 }}
{{- end }}
    - alert: etcdGRPCRequestsSlow
      annotations:
        message: 'etcd cluster "{{`{{`}} $labels.job {{`}}`}}": gRPC requests to {{`{{`}} $labels.grpc_method {{`}}`}} are taking {{`{{`}} $value {{`}}`}}s on etcd instance {{`{{`}} $labels.instance {{`}}`}}.'
      expr: |-
        histogram_quantile(0.99, sum(rate(grpc_server_handling_seconds_bucket{job=~".*etcd.*", grpc_type="unary"}[5m])) by (job, instance, grpc_service, grpc_method, le))
        > 0.15
      for: 10m
      labels:
        severity: critical
{{- if .Values.defaultRules.additionalRuleLabels }}
{{ toYaml .Values.defaultRules.additionalRuleLabels | indent 8 }}
{{- end }}
    - alert: etcdMemberCommunicationSlow
      annotations:
        message: 'etcd cluster "{{`{{`}} $labels.job {{`}}`}}": member communication with {{`{{`}} $labels.To {{`}}`}} is taking {{`{{`}} $value {{`}}`}}s on etcd instance {{`{{`}} $labels.instance {{`}}`}}.'
      expr: |-
        histogram_quantile(0.99, rate(etcd_network_peer_round_trip_time_seconds_bucket{job=~".*etcd.*"}[5m]))
        > 0.15
      for: 10m
      labels:
        severity: warning
{{- if .Values.defaultRules.additionalRuleLabels }}
{{ toYaml .Values.defaultRules.additionalRuleLabels | indent 8 }}
{{- end }}
    - alert: etcdHighNumberOfFailedProposals
      annotations:
        message: 'etcd cluster "{{`{{`}} $labels.job {{`}}`}}": {{`{{`}} $value {{`}}`}} proposal failures within the last hour on etcd instance {{`{{`}} $labels.instance {{`}}`}}.'
      expr: rate(etcd_server_proposals_failed_total{job=~".*etcd.*"}[15m]) > 5
      for: 15m
      labels:
        severity: warning
{{- if .Values.defaultRules.additionalRuleLabels }}
{{ toYaml .Values.defaultRules.additionalRuleLabels | indent 8 }}
{{- end }}
    - alert: etcdHighFsyncDurations
      annotations:
        message: 'etcd cluster "{{`{{`}} $labels.job {{`}}`}}": 99th percentile fync durations are {{`{{`}} $value {{`}}`}}s on etcd instance {{`{{`}} $labels.instance {{`}}`}}.'
      expr: |-
        histogram_quantile(0.99, rate(etcd_disk_wal_fsync_duration_seconds_bucket{job=~".*etcd.*"}[5m]))
        > 0.5
      for: 10m
      labels:
        severity: warning
{{- if .Values.defaultRules.additionalRuleLabels }}
{{ toYaml .Values.defaultRules.additionalRuleLabels | indent 8 }}
{{- end }}
    - alert: etcdHighCommitDurations
      annotations:
        message: 'etcd cluster "{{`{{`}} $labels.job {{`}}`}}": 99th percentile commit durations {{`{{`}} $value {{`}}`}}s on etcd instance {{`{{`}} $labels.instance {{`}}`}}.'
      expr: |-
        histogram_quantile(0.99, rate(etcd_disk_backend_commit_duration_seconds_bucket{job=~".*etcd.*"}[5m]))
        > 0.25
      for: 10m
      labels:
        severity: warning
{{- if .Values.defaultRules.additionalRuleLabels }}
{{ toYaml .Values.defaultRules.additionalRuleLabels | indent 8 }}
{{- end }}
    - alert: etcdHighNumberOfFailedHTTPRequests
      annotations:
        message: '{{`{{`}} $value {{`}}`}}% of requests for {{`{{`}} $labels.method {{`}}`}} failed on etcd instance {{`{{`}} $labels.instance {{`}}`}}'
      expr: |-
        sum(rate(etcd_http_failed_total{job=~".*etcd.*", code!="404"}[5m])) BY (method) / sum(rate(etcd_http_received_total{job=~".*etcd.*"}[5m]))
        BY (method) > 0.01
      for: 10m
      labels:
        severity: warning
{{- if .Values.defaultRules.additionalRuleLabels }}
{{ toYaml .Values.defaultRules.additionalRuleLabels | indent 8 }}
{{- end }}
    - alert: etcdHighNumberOfFailedHTTPRequests
      annotations:
        message: '{{`{{`}} $value {{`}}`}}% of requests for {{`{{`}} $labels.method {{`}}`}} failed on etcd instance {{`{{`}} $labels.instance {{`}}`}}.'
      expr: |-
        sum(rate(etcd_http_failed_total{job=~".*etcd.*", code!="404"}[5m])) BY (method) / sum(rate(etcd_http_received_total{job=~".*etcd.*"}[5m]))
        BY (method) > 0.05
      for: 10m
      labels:
        severity: critical
{{- if .Values.defaultRules.additionalRuleLabels }}
{{ toYaml .Values.defaultRules.additionalRuleLabels | indent 8 }}
{{- end }}
    - alert: etcdHTTPRequestsSlow
      annotations:
        message: etcd instance {{`{{`}} $labels.instance {{`}}`}} HTTP requests to {{`{{`}} $labels.method {{`}}`}} are slow.
      expr: |-
        histogram_quantile(0.99, rate(etcd_http_successful_duration_seconds_bucket[5m]))
        > 0.15
      for: 10m
      labels:
        severity: warning
{{- if .Values.defaultRules.additionalRuleLabels }}
{{ toYaml .Values.defaultRules.additionalRuleLabels | indent 8 }}
{{- end }}
{{- end }}