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[stable/percona-xtradb-cluster] Add prometheus-operator support (#11994)
Signed-off-by: Andreas Holmsten <andreas.holmsten@gmail.com>
This commit is contained in:
Andreas Holmsten
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Kubernetes Prow Robot
Kubernetes Prow Robot
parent
1f88957e77
commit
f49680349e
@@ -1,5 +1,5 @@
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name: percona-xtradb-cluster
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version: 0.6.6
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version: 0.7.0
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appVersion: 5.7.19
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description: free, fully compatible, enhanced, open source drop-in replacement for
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MySQL with Galera Replication (xtradb)
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@@ -82,6 +82,14 @@ The following table lists the configurable parameters of the Percona chart and t
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| `metricsExporter.enabled` | if set to true runs a [mysql metrics exporter](https://github.com/prometheus/mysqld_exporter) container in the pod | false |
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| `metricsExporter.commandOverrides` | Overrides default docker command for metrics exporter | `[]` |
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| `metricsExporter.argsOverrides` | Overrides default docker args for metrics exporter | `[]` |
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| `prometheus.operator.enabled` | Setting to true will create Prometheus-Operator specific resources | `false` |
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| `prometheus.operator.prometheusRule.enabled` | Create default alerting rules | `true` |
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| `prometheus.operator.prometheusRule.labels` | Labels to add to alerts | `{}` |
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| `prometheus.operator.prometheusRule.namespace` | Namespace which Prometheus is installed in | `nil` |
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| `prometheus.operator.prometheusRule.selector` | Label Selector for Prometheus to find ServiceMonitors | `nil` |
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| `prometheus.operator.serviceMonitor.interval` | Interval at which Prometheus will scrape metrics exporter | `10s` |
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| `prometheus.operator.serviceMonitor.namespace` | Namespace which Prometheus is installed in | `nil` |
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| `prometheus.operator.serviceMonitor.selector` | Label Selector for Prometheus to find ServiceMonitors | `nil` |
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| `podDisruptionBudget` | Pod disruption budget | `{enabled: false, maxUnavailable: 1}` |
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| `service.percona.headless` | if set to true makes the percona service [headless](https://kubernetes.io/docs/concepts/services-networking/service/#headless-services) | false |
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@@ -0,0 +1,61 @@
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{{ if and .Values.metricsExporter.enabled .Values.prometheus.operator.enabled .Values.prometheus.operator.prometheusRule.enabled }}
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apiVersion: monitoring.coreos.com/v1
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kind: PrometheusRule
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metadata:
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name: {{ template "percona-xtradb-cluster.fullname" . }}
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{{- if .Values.prometheus.operator.prometheusRule.namespace }}
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namespace: {{ .Values.prometheus.operator.prometheusRule.namespace }}
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{{- end }}
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labels:
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app: {{ template "percona-xtradb-cluster.fullname" . }}
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chart: "{{ .Chart.Name }}-{{ .Chart.Version }}"
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heritage: "{{ .Release.Service }}"
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release: "{{ .Release.Name }}"
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{{- if .Values.prometheus.operator.prometheusRule.selector }}
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{{ toYaml .Values.prometheus.operator.prometheusRule.selector | indent 4 }}
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{{- end }}
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spec:
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groups:
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- name: {{ template "percona-xtradb-cluster.fullname" . }}-alerts
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rules:
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- alert: MySQLGaleraNotReady
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annotations:
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message: Galera cluster node not ready
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expr: mysql_global_status_wsrep_ready{service="{{ template "percona-xtradb-cluster.fullname" . }}-metrics"} != 1
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for: 5m
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labels:
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severity: critical
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{{- if .Values.prometheus.operator.prometheusRule.labels }}
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{{ toYaml .Values.prometheus.operator.prometheusRule.labels | indent 8 }}
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{{- end }}
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- alert: MySQLGaleraOutOfSync
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annotations:
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message: Galera cluster node out of sync
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expr: (mysql_global_status_wsrep_local_state{service="{{ template "percona-xtradb-cluster.fullname" . }}-metrics"} != 4 and mysql_global_variables_wsrep_desync{service="{{ template "percona-xtradb-cluster.fullname" . }}-metrics"} == 0)
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for: 5m
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labels:
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severity: critical
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{{- if .Values.prometheus.operator.prometheusRule.labels }}
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{{ toYaml .Values.prometheus.operator.prometheusRule.labels | indent 8 }}
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{{- end }}
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- alert: MySQLGaleraDonorFallingBehind
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annotations:
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message: xtradb cluster donor node falling behind
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expr: (mysql_global_status_wsrep_local_state{service="{{ template "percona-xtradb-cluster.fullname" . }}-metrics"} == 2 and mysql_global_status_wsrep_local_recv_queue{service="{{ template "percona-xtradb-cluster.fullname" . }}-metrics"} > 100)
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for: 5m
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labels:
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severity: warning
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{{- if .Values.prometheus.operator.prometheusRule.labels }}
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{{ toYaml .Values.prometheus.operator.prometheusRule.labels | indent 8 }}
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{{- end }}
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- alert: MySQLInnoDBLogWaits
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annotations:
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message: MySQL innodb log writes stalling
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expr: rate(mysql_global_status_innodb_log_waits{service="{{ template "percona-xtradb-cluster.fullname" . }}-metrics"}[15m]) > 10
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for: 5m
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labels:
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severity: warning
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{{- if .Values.prometheus.operator.prometheusRule.labels }}
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{{ toYaml .Values.prometheus.operator.prometheusRule.labels | indent 8 }}
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{{- end }}
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{{ end }}
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@@ -12,7 +12,8 @@ metadata:
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spec:
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clusterIP: None
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ports:
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- port: 9104
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- name: metrics
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port: 9104
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selector:
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app: {{ template "percona-xtradb-cluster.fullname" . }}
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release: "{{ .Release.Name }}"
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@@ -0,0 +1,27 @@
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{{ if and .Values.metricsExporter.enabled .Values.prometheus.operator.enabled }}
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apiVersion: monitoring.coreos.com/v1
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kind: ServiceMonitor
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metadata:
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name: {{ template "percona-xtradb-cluster.fullname" . }}
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{{- if .Values.prometheus.operator.serviceMonitor.namespace }}
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namespace: {{ .Values.prometheus.operator.serviceMonitor.namespace }}
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{{- end }}
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labels:
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app: {{ template "percona-xtradb-cluster.fullname" . }}
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chart: "{{ .Chart.Name }}-{{ .Chart.Version }}"
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heritage: "{{ .Release.Service }}"
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release: "{{ .Release.Name }}"
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{{- if .Values.prometheus.operator.serviceMonitor.selector }}
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{{ toYaml .Values.prometheus.operator.serviceMonitor.selector | indent 4 }}
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{{- end }}
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spec:
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selector:
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matchLabels:
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app: {{ template "percona-xtradb-cluster.fullname" . }}
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release: {{ .Release.Name }}
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endpoints:
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- port: metrics
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interval: {{ .Values.prometheus.operator.serviceMonitor.interval }}
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namespaceSelector:
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any: true
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{{ end }}
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@@ -101,6 +101,38 @@ metricsExporter:
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commandOverrides: []
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argsOverrides: []
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prometheus:
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## Are you using [Prometheus Operator](https://coreos.com/operators/prometheus/docs/latest/user-guides/getting-started.html)?
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operator:
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## Setting to true will create Prometheus-Operator specific resources like ServiceMonitors
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enabled: false
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## Configures alerts for Prometheus to pick up
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prometheusRule:
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enabled: true
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## Labels to add to alerts
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labels: {}
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## Namespace which Prometheus is installed in
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# namespace: monitoring
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## Label Selector for Prometheus to find alert rules
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# selector:
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# prometheus: kube-prometheus
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## Configures targets for Prometheus to pick up
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serviceMonitor:
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## Interval at which Prometheus will scrape metrics exporter
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interval: 10s
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## Namespace which Prometheus is installed in
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# namespace: monitoring
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## Label Selector for Prometheus to find ServiceMonitors
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# selector:
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# prometheus: kube-prometheus
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## When set to true will create sidecar to tail mysql log
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logTail: true
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