Add TLS support for multiple flow-aggregators within the same namespace #7540
Description
Describe the problem/challenge you have
Running flow aggregator as multi replica in proxy mode will only allow TLS to one of the N replicas.
Describe the solution you'd like
Only one of the pods in the deployment should create the certificates. All other replicas should wait and fetch the latest version of the root CA and server certificate/key.
Anything else you would like to add?
The flow aggregator is regenerating the ca, client and server certs on startup so the last flow aggregator "wins" by clobbering the certs for the other Flow Aggregators.