feat: add support for concurrency policy in cronjobs. (#137)

Keep it backward compatible

Author: punit-kulal

stable/app/Chart.yaml

@@ -15,4 +15,4 @@ 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: 0.10.1
+version: 0.10.2

stable/app/templates/cron.yaml

@@ -13,6 +13,7 @@ metadata:
     {{- $appLabels | nindent 4 }}
 spec:
   schedule: {{ $job.schedule | quote }}
+  concurrencyPolicy: {{ if hasKey $job "concurrencyPolicy" }}{{ $job.concurrencyPolicy }}{{ else }}Allow{{ end }}
   jobTemplate:
     spec:
       backoffLimit: {{ if hasKey $job "backoffLimit" }}{{ $job.backoffLimit }}{{ else }}4{{ end }}