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[stable/postgresql] Add optional PrometheusRule for metrics. (#19050)

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Signed-off-by: Cédric de Saint Martin <cdesaintmartin@wiremind.fr>
This commit is contained in:
Cédric de Saint Martin
2019-11-22 02:01:29 -08:00
committed by Kubernetes Prow Robot
parent 9ede338ec6
commit a4aee7c359
5 changed files with 64 additions and 1 deletions
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stable/postgresql/Chart.yaml
+1 -1
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@@ -1,6 +1,6 @@
apiVersion: v1
name: postgresql
version: 7.5.0
version: 7.6.0
appVersion: 11.6.0
description: Chart for PostgreSQL, an object-relational database management system (ORDBMS) with an emphasis on extensibility and on standards-compliance.
keywords:
stable/postgresql/README.md
+4
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@@ -176,6 +176,10 @@ The following tables lists the configurable parameters of the PostgreSQL chart a
| `metrics.serviceMonitor.namespace` | Optional namespace in which to create ServiceMonitor | `nil` |
| `metrics.serviceMonitor.interval` | Scrape interval. If not set, the Prometheus default scrape interval is used | `nil` |
| `metrics.serviceMonitor.scrapeTimeout` | Scrape timeout. If not set, the Prometheus default scrape timeout is used | `nil` |
| `metrics.prometheusRule.enabled` | Set this to true to create prometheusRules for Prometheus operator | `false` |
| `metrics.prometheusRule.additionalLabels` | Additional labels that can be used so prometheusRules will be discovered by Prometheus | `{}` |
| `metrics.prometheusRule.namespace` | namespace where prometheusRules resource should be created | the same namespace as postgresql |
| `metrics.prometheusRule.rules` | [rules](https://prometheus.io/docs/prometheus/latest/configuration/alerting_rules/) to be created, check values for an example. | `[]` |
| `metrics.image.registry` | PostgreSQL Image registry | `docker.io` |
| `metrics.image.repository` | PostgreSQL Image name | `bitnami/postgres-exporter` |
| `metrics.image.tag` | PostgreSQL Image tag | `{TAG_NAME}` |
stable/postgresql/templates/prometheusrule.yaml
+23
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@@ -0,0 +1,23 @@
{{- if and .Values.metrics.enabled .Values.metrics.prometheusRule.enabled }}
apiVersion: monitoring.coreos.com/v1
kind: PrometheusRule
metadata:
name: {{ template "postgresql.fullname" . }}
{{- with .Values.metrics.prometheusRule.namespace }}
namespace: {{ . }}
{{- end }}
labels:
app: {{ template "postgresql.name" . }}
chart: {{ template "postgresql.chart" . }}
release: {{ .Release.Name | quote }}
heritage: {{ .Release.Service | quote }}
{{- with .Values.metrics.prometheusRule.additionalLabels }}
{{ toYaml . | indent 4 }}
{{- end }}
spec:
{{- with .Values.metrics.prometheusRule.rules }}
groups:
- name: {{ template "postgresql.name" $ }}
rules: {{ tpl (toYaml .) $ | nindent 8 }}
{{- end }}
{{- end }}
stable/postgresql/values-production.yaml
+18
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@@ -386,6 +386,24 @@ metrics:
# namespace: monitoring
# interval: 30s
# scrapeTimeout: 10s
## Custom PrometheusRule to be defined
## The value is evaluated as a template, so, for example, the value can depend on .Release or .Chart
## ref: https://github.com/coreos/prometheus-operator#customresourcedefinitions
prometheusRule:
enabled: false
additionalLabels: {}
namespace: ""
rules: []
## These are just examples rules, please adapt them to your needs.
## Make sure to constraint the rules to the current postgresql service.
# - alert: HugeReplicationLag
# expr: pg_replication_lag{service="{{ template "postgresql.fullname" . }}-metrics"} / 3600 > 1
# for: 1m
# labels:
# severity: critical
# annotations:
# description: replication for {{ template "postgresql.fullname" . }} PostgreSQL is lagging by {{ "{{ $value }}" }} hour(s).
# summary: PostgreSQL replication is lagging by {{ "{{ $value }}" }} hour(s).
image:
registry: docker.io
repository: bitnami/postgres-exporter
stable/postgresql/values.yaml
+18
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@@ -394,6 +394,24 @@ metrics:
# namespace: monitoring
# interval: 30s
# scrapeTimeout: 10s
## Custom PrometheusRule to be defined
## The value is evaluated as a template, so, for example, the value can depend on .Release or .Chart
## ref: https://github.com/coreos/prometheus-operator#customresourcedefinitions
prometheusRule:
enabled: false
additionalLabels: {}
namespace: ""
rules: []
## These are just examples rules, please adapt them to your needs.
## Make sure to constraint the rules to the current postgresql service.
# - alert: HugeReplicationLag
# expr: pg_replication_lag{service="{{ template "postgresql.fullname" . }}-metrics"} / 3600 > 1
# for: 1m
# labels:
# severity: critical
# annotations:
# description: replication for {{ template "postgresql.fullname" . }} PostgreSQL is lagging by {{ "{{ $value }}" }} hour(s).
# summary: PostgreSQL replication is lagging by {{ "{{ $value }}" }} hour(s).
image:
registry: docker.io
repository: bitnami/postgres-exporter