update logic & note

Author: lukeviens

charts/retool/templates/priorityclass.yaml

@@ -1,4 +1,7 @@
+{{/* We ensure that the jobs runner has highest priority,
+since unrun db migrations can lead to pod crashloops. */}}
 {{- if not .Values.priorityClassName }}
+{{- if include "retool.jobRunner.enabled" . }}
 apiVersion: scheduling.k8s.io/v1
 kind: PriorityClass
 metadata:
@@ -8,8 +11,9 @@ metadata:
 value: 20
 preemptionPolicy: Never
 globalDefault: false
-description: "PriorityClass for Retool jobs runner pods"
+description: "PriorityClass for Retool jobs-runner pods"
 ---
+{{- end }}
 apiVersion: scheduling.k8s.io/v1
 kind: PriorityClass
 metadata: