After updating the admin roles for a pulsar cluster, broker and bookkeeper were restarted at the same time

[pgier]

After updating the pulsarcluster CRD with a change to the list of admin roles, first zookeeper and the proxies were restarted, then bookkeeper and broker were restarted at the same time.

I'm not sure if Zookeeper needs a restart after a role change.

Broker and Bookkeeper shouldn't restart at the same time. Proxy should be restarted only after brokers are up.

[pgier]

Updating the imagePullSecrets may cause the same issue.

[pgier]

A bad update (where zookeeper never finishes upgrading for example) might also cause this.