aws_instance: output IPv6-based public hostnames

[De117]

Description

AWS now supports multiple public DNS names:

• based on the IPv4 address (e.g. ec2-12-34-56-78.eu-west-1.compute.amazonaws.com)
• based on the IPv6 address (e.g. 02fap-l4n1a-zs5jy-hqbx4-5dbep.eu-west-1.ip.aws)
• based on both IPv4 and IPv6 addresses (e.g. 02fap-l4n1a-zs5jy-hqbx4-5dbep-03d770u.eu-west-1.ip.aws)

The aws_instance resource currently outputs only the first one, as the public_dns attribute.
It should also output the other ones.

These values are not returned by the DescribeInstances AWS API call,
but they can be derived from the IP addresses, as documented here.

Affected Resource(s) or Data Source(s)

aws_instance

Would you like to implement the enhancement?

Yes

[github-actions]

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[aristosvo]

Hi @De117 👋!

I think we should add these fields to data sourcenetwork_interface instead. That reflects the behavior of the API better, results should be the same.