K8s: Add ability to config trigger name (#2777)

Author: lermit

charts/selenium-grid/templates/_helpers.tpl

@@ -257,6 +257,9 @@ triggers:
     authenticationRef:
       name: {{ template "seleniumGrid.autoscaling.authenticationRef.fullname" $ }}
     useCachedMetrics: {{ $.Values.autoscaling.useCachedMetrics }}
+  {{- if $.Values.autoscaling.triggerName }}
+    name: {{ $.Values.autoscaling.triggerName | quote }}
+  {{- end }}
   {{- if and (eq $.Values.autoscaling.scalingType "deployment") $.Values.autoscaling.metricType }}
     metricType: {{ $.Values.autoscaling.metricType }}
   {{- end }}

charts/selenium-grid/values.yaml

@@ -1019,6 +1019,8 @@ autoscaling:
   # Configuration for ScaledObject triggers https://keda.sh/docs/latest/reference/scaledobject-spec/#triggers
   # -- Enables caching of metric values during polling interval (as specified in .spec.pollingInterval, the default: false in KEDA).
   useCachedMetrics: false
+  # -- Set trigger name.
+  triggerName: ""
   # -- The type of metric that should be used (The default: AverageValue in KEDA)
   metricType: ""
   # -- Annotations for KEDA resources: ScaledObject and ScaledJob