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[bitnami/keycloak] Add HPA Behavior when scaling up and down #25681

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May 13, 2024
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[bitnami/keycloak] Add HPA Behavior when scaling up and down #25681

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2 changes: 1 addition & 1 deletion bitnami/keycloak/Chart.yaml
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Expand Up @@ -33,4 +33,4 @@ maintainers:
name: keycloak
sources:
- https://github.com/bitnami/charts/tree/main/bitnami/keycloak
version: 21.1.3
version: 21.2.0
26 changes: 16 additions & 10 deletions bitnami/keycloak/README.md
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Expand Up @@ -511,16 +511,22 @@ As an alternative, you can use of the preset configurations for pod affinity, po

### Other parameters

| Name | Description | Value |
| -------------------------- | -------------------------------------------------------------- | ------- |
| `pdb.create` | Enable/disable a Pod Disruption Budget creation | `false` |
| `pdb.minAvailable` | Minimum number/percentage of pods that should remain scheduled | `1` |
| `pdb.maxUnavailable` | Maximum number/percentage of pods that may be made unavailable | `""` |
| `autoscaling.enabled` | Enable autoscaling for Keycloak | `false` |
| `autoscaling.minReplicas` | Minimum number of Keycloak replicas | `1` |
| `autoscaling.maxReplicas` | Maximum number of Keycloak replicas | `11` |
| `autoscaling.targetCPU` | Target CPU utilization percentage | `""` |
| `autoscaling.targetMemory` | Target Memory utilization percentage | `""` |
| Name | Description | Value |
| ----------------------------------------------------------- | -------------------------------------------------------------------------------------------- | ------- |
| `pdb.create` | Enable/disable a Pod Disruption Budget creation | `false` |
| `pdb.minAvailable` | Minimum number/percentage of pods that should remain scheduled | `1` |
| `pdb.maxUnavailable` | Maximum number/percentage of pods that may be made unavailable | `""` |
| `autoscaling.enabled` | Enable autoscaling for Keycloak | `false` |
| `autoscaling.minReplicas` | Minimum number of Keycloak replicas | `1` |
| `autoscaling.maxReplicas` | Maximum number of Keycloak replicas | `11` |
| `autoscaling.targetCPU` | Target CPU utilization percentage | `""` |
| `autoscaling.targetMemory` | Target Memory utilization percentage | `""` |
| `autoscaling.behavior.scaleUp.stabilizationWindowSeconds` | The number of seconds for which past recommendations should be considered while scaling up | `120` |
| `autoscaling.behavior.scaleUp.selectPolicy` | The priority of policies that the autoscaler will apply when scaling up | `Max` |
| `autoscaling.behavior.scaleUp.policies` | HPA scaling policies when scaling up | `[]` |
| `autoscaling.behavior.scaleDown.stabilizationWindowSeconds` | The number of seconds for which past recommendations should be considered while scaling down | `300` |
| `autoscaling.behavior.scaleDown.selectPolicy` | The priority of policies that the autoscaler will apply when scaling down | `Max` |
| `autoscaling.behavior.scaleDown.policies` | HPA scaling policies when scaling down | `[]` |

### Metrics parameters

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17 changes: 17 additions & 0 deletions bitnami/keycloak/templates/hpa.yaml
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Expand Up @@ -46,4 +46,21 @@ spec:
averageUtilization: {{ .Values.autoscaling.targetMemory }}
{{- end }}
{{- end }}
{{- if or .Values.autoscaling.behavior.scaleDown.policies .Values.autoscaling.behavior.scaleUp.policies }}
behavior:
{{- if .Values.autoscaling.behavior.scaleDown.policies }}
scaleDown:
stabilizationWindowSeconds: {{ .Values.autoscaling.behavior.scaleDown.stabilizationWindowSeconds }}
selectPolicy: {{ .Values.autoscaling.behavior.scaleDown.selectPolicy }}
policies:
{{- toYaml .Values.autoscaling.behavior.scaleDown.policies | nindent 8 }}
{{- end }}
{{- if .Values.autoscaling.behavior.scaleUp.policies }}
scaleUp:
stabilizationWindowSeconds: {{ .Values.autoscaling.behavior.scaleUp.stabilizationWindowSeconds }}
selectPolicy: {{ .Values.autoscaling.behavior.scaleUp.selectPolicy }}
policies:
{{- toYaml .Values.autoscaling.behavior.scaleUp.policies | nindent 8 }}
{{- end }}
{{- end }}
{{- end }}
36 changes: 36 additions & 0 deletions bitnami/keycloak/values.yaml
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Expand Up @@ -912,6 +912,7 @@ pdb:
##
maxUnavailable: ""
## Keycloak Autoscaling configuration
## ref: https://kubernetes.io/docs/tasks/run-application/horizontal-pod-autoscale/
## @param autoscaling.enabled Enable autoscaling for Keycloak
## @param autoscaling.minReplicas Minimum number of Keycloak replicas
## @param autoscaling.maxReplicas Maximum number of Keycloak replicas
Expand All @@ -924,6 +925,41 @@ autoscaling:
maxReplicas: 11
targetCPU: ""
targetMemory: ""
## HPA Scaling Behavior
## ref: https://kubernetes.io/docs/tasks/run-application/horizontal-pod-autoscale/#configurable-scaling-behavior
##
behavior:
## HPA behavior when scaling up
## @param autoscaling.behavior.scaleUp.stabilizationWindowSeconds The number of seconds for which past recommendations should be considered while scaling up
## @param autoscaling.behavior.scaleUp.selectPolicy The priority of policies that the autoscaler will apply when scaling up
## @param autoscaling.behavior.scaleUp.policies [array] HPA scaling policies when scaling up
## e.g:
## Policy to scale 20% of the pod in 60s
## - type: Percent
## value: 20
## periodSeconds: 60
##
scaleUp:
stabilizationWindowSeconds: 120
selectPolicy: Max
policies: []
## HPA behavior when scaling down
## @param autoscaling.behavior.scaleDown.stabilizationWindowSeconds The number of seconds for which past recommendations should be considered while scaling down
## @param autoscaling.behavior.scaleDown.selectPolicy The priority of policies that the autoscaler will apply when scaling down
## @param autoscaling.behavior.scaleDown.policies [array] HPA scaling policies when scaling down
## e.g:
## Policy to scale one pod in 300s
## - type: Pods
## value: 1
## periodSeconds: 300
##
scaleDown:
stabilizationWindowSeconds: 300
selectPolicy: Max
policies:
- type: Pods
value: 1
periodSeconds: 300
## @section Metrics parameters
##

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