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chore: Add optional rollingUpdate strategy parameters to helm chart
What this PR does / why we need it:
This allows users to configure the rollingUpdate section in the controller-manager deployment, to be able to explicitly configure maxSurge
and maxUnavailable
.
Setting maxSurge
to 0 is especially useful for 3 node clusters, when controller-manager also runs with 3 replicas, in combination with requiredDuringSchedulingIgnoredDuringExecution
antiAffinity.