Fix cronjob schedule to once a week at Sunday

Feature/cleanup

charts/imagepullsecret-injector/Chart.yaml

@@ -15,7 +15,7 @@ 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: 0.0.23
+version: 0.0.24
 
 # This is the version number of the application being deployed. This version number should be
 # incremented each time you make changes to the application. Versions are not expected to

charts/imagepullsecret-injector/templates/certificate-gen/cronjob-certificate-gen.yaml

@@ -5,7 +5,7 @@ metadata:
   labels:
     {{- include "imagepullsecret-injector.labels" . | nindent 4 }}
 spec:
-  schedule: '* * * * 0'
+  schedule: {{ .Values.certificateGenerator.cronJobSchedule }}
   jobTemplate:
     metadata:
       name: "{{ .Release.Name }}"

charts/imagepullsecret-injector/values.yaml

@@ -24,3 +24,6 @@ imagepullsecretInjector:
     - kube-system
     - traefik
     - datadog
+
+certificateGenerator:
+  cronJobSchedule: '0 0 * * 0' # At 00:00 on Sunday