Expanding on autoscaling templating

README.md

@@ -22,7 +22,7 @@ You can then run `helm search repo trino` to see the charts.
 Then you can install chart using:
 
 ```console
-helm install my-trino trino/trino --version 0.13.0
+helm install my-trino trino/trino --version 0.13.1
 ```
 
 ## Documentation

charts/trino/Chart.yaml

@@ -15,7 +15,7 @@ type: application
 # This is the chart version. This version number should be incremented each time you make changes
 # to the chart and its templates, including the app version.
 # Versions are expected to follow Semantic Versioning (https://semver.org/)
-version: 0.13.0
+version: 0.13.1
 
 # This is the version number of the application being deployed. This version number should be
 # incremented each time you make changes to the application. Versions are not expected to

charts/trino/templates/autoscaler.yaml

@@ -1,5 +1,5 @@
 {{- if .Values.server.autoscaling.enabled -}}
-apiVersion: autoscaling/v1
+apiVersion: {{ .Values.server.autoscaling.apiVersion }}
 kind: HorizontalPodAutoscaler
 metadata:
   name: {{ template "trino.worker" . }}
@@ -14,5 +14,5 @@ spec:
     apiVersion: apps/v1
     kind: Deployment
     name: {{ template "trino.worker" . }}
-  targetCPUUtilizationPercentage: {{ .Values.server.autoscaling.targetCPUUtilizationPercentage }}
+    {{- .Values.server.autoscaling.extraSpec | nindent 2 }}
 {{- end }}

charts/trino/values.yaml

@@ -43,7 +43,12 @@ server:
   autoscaling:
     enabled: false
     maxReplicas: 5
-    targetCPUUtilizationPercentage: 50
+    apiVersion: autoscaling/v1
+    # extraSpec contains a templated HPA specification. Depending on the apiVersion,
+    # you may be able to configure more advanced behavior and metrics.
+    # See https://kubernetes.io/docs/tasks/run-application/horizontal-pod-autoscale/
+    extraSpec: |-
+      targetCPUUtilizationPercentage: 50
 
 accessControl: {}
   # type: configmap