Subnet
VPC and Subnet IP Address Considerations with ROSA
VPC and Subnet IP Address Considerations with ROSA
ROSA clusters can be built to be highly available using the fundamental capability that underlies most HA configurations on AWS: Availability Zones. By spreading the resources of a cluster across three separate (but regionally co-located) datacenters, ROSA users can ensure the cluster continues to run even if an entire AWS AZ goes down.
This capability comes with a few challenges and considerations around IP addressing that this article will attempt to explain and provide options and best practices around.