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Add behavior for Horizontal Pod Autoscaler #366

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Add behavior for Horizontal Pod Autoscaler #366

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3a739a3
Add behavior for hpa
Rub21 May 20, 2025
e93db6c
Evaluate autoscaling by CPU and memory separately
Rub21 May 20, 2025
5295d8c
Add PASSENGER_MAX_POOL_SIZE env var for web-api
Rub21 May 20, 2025
923a732
Fix possition for PASSENGER_MAX_POOL_SIZE env var
Rub21 May 21, 2025
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2 changes: 2 additions & 0 deletions osm-seed/templates/web/web-deployment.yaml
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Original file line number Diff line number Diff line change
Expand Up @@ -168,6 +168,8 @@ spec:
- name: CGIMAP_PORT
value: {{ quote 8000 }}
{{- end }}
- name: PASSENGER_MAX_POOL_SIZE
value: {{ .Values.web.env.PASSENGER_MAX_POOL_SIZE | default "6" | quote }}
volumeMounts:
- mountPath: /dev/shm
name: shared-memory
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41 changes: 29 additions & 12 deletions osm-seed/templates/web/web-hpa.yaml
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Expand Up @@ -11,16 +11,33 @@ spec:
minReplicas: {{ .Values.web.autoscaling.minReplicas }}
maxReplicas: {{ .Values.web.autoscaling.maxReplicas }}
metrics:
- type: Resource
resource:
name: cpu
target:
type: Utilization
averageUtilization: {{ .Values.web.autoscaling.cpuUtilization }}
- type: Resource
resource:
name: memory
target:
type: Utilization
averageUtilization: {{ .Values.web.autoscaling.memoryUtilization }}
{{- if .Values.web.autoscaling.cpuUtilization.enable }}
- type: Resource
resource:
name: cpu
target:
type: Utilization
averageUtilization: {{ .Values.web.autoscaling.cpuUtilization.value }}
{{- end }}
{{- if .Values.web.autoscaling.memoryUtilization.enable }}
- type: Resource
resource:
name: memory
target:
type: Utilization
averageUtilization: {{ .Values.web.autoscaling.memoryUtilization.value }}
{{- end }}
behavior:
scaleUp:
stabilizationWindowSeconds: {{ .Values.web.autoscaling.behavior.scaleUp.stabilizationWindowSeconds | default 60 }}
policies:
- type: Percent
value: {{ .Values.web.autoscaling.behavior.scaleUp.policyValue | default 100 }}
periodSeconds: {{ .Values.web.autoscaling.behavior.scaleUp.periodSeconds | default 60 }}
scaleDown:
stabilizationWindowSeconds: {{ .Values.web.autoscaling.behavior.scaleDown.stabilizationWindowSeconds | default 60 }}
policies:
- type: Percent
value: {{ .Values.web.autoscaling.behavior.scaleDown.policyValue | default 50 }}
periodSeconds: {{ .Values.web.autoscaling.behavior.scaleDown.periodSeconds | default 60 }}
{{- end }}
22 changes: 18 additions & 4 deletions osm-seed/values.yaml
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Expand Up @@ -162,6 +162,7 @@ web:
RAILS_STORAGE_REGION: us-east-1
RAILS_STORAGE_BUCKET: osmseed-website-bucket
EXTERNAL_CGIMAP: false
PASSENGER_MAX_POOL_SIZE: 6
resources:
enabled: false
requests:
Expand All @@ -175,11 +176,24 @@ web:
nodeSelector:
enabled: false
autoscaling:
enabled: false
enabled: true
minReplicas: 1
maxReplicas: 3
cpuUtilization: 60
memoryUtilization: 60
maxReplicas: 6
cpuUtilization:
enable: false
value: 85
memoryUtilization:
enable: false
value: 85
behavior:
scaleUp:
stabilizationWindowSeconds: 60
policyValue: 100
periodSeconds: 60
scaleDown:
stabilizationWindowSeconds: 60
policyValue: 50
periodSeconds: 60
sharedMemorySize: 256Mi
livenessProbeExec: true
# ====================================================================================================
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