Temporal cluster metadata on AWS ECS/Fargate


I have set up a cluster in AWS ECS/Fargate and researching an opportunity to spread a cluster in multiple VPCs. As far as I know, there is no broadcast involved and multi-VPC is possible. But I need to confirm the flow of adding a new node to the cluster:

  1. If it is not a first node in the cluster then the info about the seeds is grabbed from the database.
  2. By using ports 693X temporal server components connects to their counterparts from provided seed list. And then do some sort of ping-pong for controlling the health of the nodes.

Is my understanding correct?