Goal:

• Answer the open questions to expand or make the Epic (SPLAT-1149) invalid for supporting NAT Gateways in AWS Local Zones.
• Open questions:
  • options to support it in hybrid mode (does AWS provides an API to show supported features [NAT GW] in the Local Zone, or just a landing page?)
  • if is API doesn't exists, will we need to keep a static list in installer with supported zones, and provide one field to force include it?
  • Will the logic became complex (terraform mapping, etc)?
  • Will we need to expand the storage options too (from announcement - maybe in another Epic) ?

ENGINEERING REFERENCES:

• AWS Announcement: https://aws.amazon.com/about-aws/whats-new/2023/07/aws-local-zone-phoenix-arizona/
• AWS Announcement blog: https://aws.amazon.com/blogs/aws/new-aws-local-zone-in-phoenix-arizona-more-instance-types-more-ebs-storage-classes-and-more-services/
• Slack thread: https://redhat-internal.slack.com/archives/C011MLLLY4W/p1690663608616059