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adding random offset to discvery cronjob #113

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adding random offset to discvery cronjob #113

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a31c82a
adding random offset to discvery cronjob
sk99sk Mar 27, 2025
146a80a
Merge branch 'main' of https://github.com/sk99sk/oci-kubernetes-monit…
sk99sk Mar 27, 2025
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16 changes: 16 additions & 0 deletions charts/logan/templates/_helpers.tpl
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Original file line number Diff line number Diff line change
Expand Up @@ -51,3 +51,19 @@
{{- "UNDEFINED" -}}
{{- end -}}
{{- end -}}

#Add random offset for discovery job
{{- define "randomOffsetCronSchedule" -}}
{{- $cronSchedule := .Values.k8sDiscovery.objects.cronSchedule -}}
{{- $cronParts := regexSplit " " $cronSchedule -1 -}}
{{- $minutePart := index $cronParts 0 -}}
{{- if hasPrefix "*/" $minutePart -}}
{{- $interval := trimPrefix "*/" $minutePart | atoi -}}
{{- $intervalInt := int $interval -}}
{{- $randomOffset := randInt 0 $intervalInt -}}
{{- $newMinutePart := printf "%d/%d" $randomOffset $interval -}}
{{- printf "%s %s %s %s %s" $newMinutePart (index $cronParts 1) (index $cronParts 2) (index $cronParts 3) (index $cronParts 4) -}}
{{- else -}}
{{- $cronSchedule -}}
{{- end -}}
{{- end -}}
2 changes: 1 addition & 1 deletion charts/logan/templates/discovery-cronjob.yaml
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Expand Up @@ -10,7 +10,7 @@ metadata:
name: {{ .Values.global.resourceNamePrefix }}-discovery
namespace: {{ $kubernetesNamespace }}
spec:
schedule: {{ .Values.k8sDiscovery.objects.cronSchedule | quote }}
schedule: "{{ include "randomOffsetCronSchedule" . }}"
startingDeadlineSeconds: 120
concurrencyPolicy: Forbid
successfulJobsHistoryLimit: {{ .Values.k8sDiscovery.objects.successfulJobsHistoryLimit }}
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