User Story:

Every EC2 instance receives a private hostname, which should provide both A and AAAA records for the IPv4 and IPv6 addresses of the instance. This is only supported via "resource-name" hostname type.

Additionally, any pods that needs to assume the node assigned IAM role should be able to contact the IMDS endpoint over IPv6. The endpoint must be enabled explicitly.

Acceptance Criteria:

Description of criteria:

• Enable EC2 IMDS IPv6 endpoint for controlplane and worker nodes.
• Enable A/AAAA records for private hostnames via "resource-name" hostname type.

(optional) Out of Scope:

Detail about what is specifically not being delivered in the story

Engineering Details:

• Similar to CORS-4315, we will set it automatically by checking infrastructure CR status.

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