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feat(cloudnative-pg): Setup optional PDB #639

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19 changes: 19 additions & 0 deletions charts/cloudnative-pg/templates/pdb.yaml
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Original file line number Diff line number Diff line change
@@ -0,0 +1,19 @@
{{- if .Values.podDisruptionBudget.enabled -}}
apiVersion: policy/v1
kind: PodDisruptionBudget
metadata:
name: {{ include "cloudnative-pg.fullname" . }}
spec:
selector:
matchLabels:
{{- include "cloudnative-pg.selectorLabels" . | nindent 6 }}
{{- if .Values.podDisruptionBudget.minAvailable }}
minAvailable: {{ .Values.podDisruptionBudget.minAvailable }}
{{- end }}
{{- if .Values.podDisruptionBudget.maxUnavailable }}
maxUnavailable: {{ .Values.podDisruptionBudget.maxUnavailable }}
{{- end }}
{{- if (semverCompare ">= 1.27-0" .Capabilities.KubeVersion.Version) }}
unhealthyPodEvictionPolicy: {{ .Values.podDisruptionBudget.unhealthyPodEvictionPolicy }}
{{- end }}
{{- end }}
3 changes: 3 additions & 0 deletions charts/cloudnative-pg/values.schema.json
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Expand Up @@ -11,6 +11,9 @@
"affinity": {
"type": "object"
},
"podDisruptionBudget": {
"type": "object"
},
"commonAnnotations": {
"type": "object"
},
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26 changes: 26 additions & 0 deletions charts/cloudnative-pg/values.yaml
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Expand Up @@ -173,6 +173,32 @@ tolerations: []
# -- Affinity for the operator to be installed.
affinity: {}

# -- Setup podDisruptionBudget for the operator
# https://kubernetes.io/docs/tasks/run-application/configure-pdb/
podDisruptionBudget:

# -- Specifies whether the PDB should be enabled
enabled: false
# The PDB definition three attributes to control the availability requirements:
# minAvailable or maxUnavailable (mutually exclusive).
# unhealthyPodEvictionPolicy
#
# Field maxUnavailable tells how many pods can be down and minAvailable tells how many pods must be running in a cluster.

# The pdb template will check values according to below order
#
# {{- if .Values.podDisruptionBudget.minAvailable }}
# minAvailable: {{ .Values.podDisruptionBudget.minAvailable }}
# {{- end }}
# {{- if .Values.podDisruptionBudget.maxUnavailable }}
# maxUnavailable: {{ .Values.podDisruptionBudget.maxUnavailable }}
# {{- end }}
#
# If both values are set, the template will use the first one and ignore the second one. currently by default minAvailable is set to 1
minAvailable: 1
maxUnavailable:
unhealthyPodEvictionPolicy: IfHealthyBudget

monitoring:

# -- Specifies whether the monitoring should be enabled. Requires Prometheus Operator CRDs.
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