Epic Goal

• Implement support in openshift-install to install OpenShift clusters using CAPI with user-provided Public IPv4 Pool ID and create resources* which consumes Public IP when publish strategy is "External".

*Resources which consumes public IPv4: bootstrap, API Public NLB, Nat Gateways

Why is this important?

• The default OpenShift installation on AWS uses multiple IPv4 public IPs which Amazon will start charging for starting in February 2024. 

Scenarios

1. As a customer with BYO Public IPv4 pools in AWS, I would like to install OpenShift cluster on AWS consuming public IPs for my own CIDR blocks, so I can have control of IPs used by my the services provided by me and will not be impacted by AWS Public IPv4 charges
2.  

Acceptance Criteria

• CI - MUST be running successfully with tests automated
• Release Technical Enablement - Provide necessary release enablement details and documents.
• ...

Dependencies (internal and external)

1. ...

Previous Work (Optional):

1. …

Open questions::

1. Is there a method to use the pool by default for all Public IPv4 claims from a given VPC/workload? So the implementation doesn't need to create EIP and associations for each resource and subnet/zone.

Done Checklist

• CI - CI is running, tests are automated and merged.
• Release Enablement <link to Feature Enablement Presentation>
• DEV - Upstream code and tests merged: <link to meaningful PR or GitHub Issue>
• DEV - Upstream documentation merged: <link to meaningful PR or GitHub Issue>
• DEV - Downstream build attached to advisory: <link to errata>
• QE - Test plans in Polarion: <link or reference to Polarion>
• QE - Automated tests merged: <link or reference to automated tests>
• DOC - Downstream documentation merged: <link to meaningful PR>