openstack team mailing list archive

[Justin Santa Barbara <justin@xxxxxxxxxxxx>]

>
> One advantage of a network metadata channel is it allows for communication
> with cloud provider services without having to put a key into the vm. In
> other words, the vm can be authenticated via its ipv6 address.
>

Did you have a use case in mind here?  It seems that Keystone could use the
IPV6 address to authenticate an instance without having to upload
credentials, which would indeed be useful (e.g. for auto-scaling), but I
don't see why that needs any special metadata support (?)