[openstack-dev] OpenStack support for Amazon Concepts - was Re: cloud-init IPv6 support

Fox, Kevin M Kevin.Fox at pnnl.gov
Tue Sep 8 14:45:08 UTC 2015


We have the whole /openstack namespace. We can extend it as far as we like.
Again, why would aws choosing to go a different way then openstack when openstack did something first be an openstack problem? We're not even talking about a big change. Just making the same md server available on a second ip.

Thanks,
Kevin

________________________________
From: Sean M. Collins
Sent: Sunday, September 06, 2015 7:34:54 PM
To: OpenStack Development Mailing List (not for usage questions)
Subject: Re: [openstack-dev] OpenStack support for Amazon Concepts - was Re: cloud-init IPv6 support

On Sun, Sep 06, 2015 at 04:25:43PM EDT, Kevin Benton wrote:
> So it's been pointed out that http://169.254.169.254/openstack is completed
> OpenStack invented. I don't quite understand how that's not violating the
> contract you said we have with end users about EC2 compatibility under the
> restriction of 'no new stuff'.

I think that is a violation. I don't think that allows us to make more
changes, just because we've broken the contract once, so a second
infraction is less significant.

> If we added an IPv6 endpoint that the metadata service listens on, it would
> just be another place that non cloud-init clients don't know how to talk
> to. It's not going to break our compatibility with any clients that connect
> to the IPv4 address.

No, but if Amazon were to make a decision about how to implement IPv6 in
EC2 and how to make the Metadata API service work with IPv6 we'd be
supporting two implementations - the one we came up with and one for
supporting the way Amazon implemented it.

--
Sean M. Collins

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