The sas-cas-operator is an operator, which is responsible for standing up the CAS server pod(s) based on the provided definition in the casdeployment resource object. We have operators for other services that work similarly.
The sas-cas-control pod is a service pod that interacts with the CAS server after it has started, translating REST requests made to the service into CAS server instructions.
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Greg Wootton | Principal Systems Technical Support Engineer