User Story:

Currently, the Security Group of API ext and int LBs allow only access over IPv4 (0.0.0.0/0) to port 6443. We need to add the any-IPv6-CIDR ::/0 to the list of allowed source CIDRs.

Acceptance Criteria:

Description of criteria:

• The Security Group of API ext and int LBs allows access to port 6443 from both IPv4 and IPv6 anywhere CIDRs.

(optional) Out of Scope:

Detail about what is specifically not being delivered in the story

Engineering Details:

• Ingress rule setting code: https://github.com/openshift/installer/blob/72c6cb7cde4aa872790b024d44523559c525c1f3/pkg/asset/manifests/aws/cluster.go#L201-L235 

This requires/does not require a design proposal.
This requires/does not require a feature gate.