chart/templates/priorityclasses/priority-classes.yaml

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#################################################
## Priority classes provisioned via the chart values
#################################################
{{- $Global := . }}
{{- range $e := .Values.priorityClasses }}
---
apiVersion: scheduling.k8s.io/v1
kind: PriorityClass
metadata:
  name: {{ $Global.Release.Name }}-{{ $e.name }}
  labels:
    tier: airflow
    release: {{ $Global.Release.Name }}
    chart: "{{ $Global.Chart.Name }}-{{ $Global.Chart.Version }}"
    heritage: {{ $Global.Release.Service }}
preemptionPolicy: {{ default "PreemptLowerPriority" $e.preemptionPolicy }}
value: {{ $e.value | required "value is required for priority classes" }}
description: "This priority class will not cause other pods to be preempted."
{{- end }}