[openstack-dev] [Neutron] cloud-init IPv6 support

Steve Gordon sgordon at redhat.com
Thu Sep 3 18:06:44 UTC 2015


----- Original Message -----
> From: "Kevin Benton" <blak111 at gmail.com>
> 
> When we discussed this before on the neutron channel, I thought it was
> because cloud-init doesn't support IPv6. We had wasted quite a bit of time
> talking about adding support to our metadata service because I was under
> the impression that cloud-init already did support IPv6.
> 
> IIRC, the argument against adding IPv6 support to cloud-init was that it
> might be incompatible with how AWS chooses to implement IPv6 metadata, so
> AWS would require a fork or other incompatible alternative to cloud-init in
> all of their images.
> 
> Is that right?

That's certainly my understanding of the status quo, I was enquiring primarily to check it was still accurate.

-Steve

> On Thu, Sep 3, 2015 at 7:30 AM, Sean M. Collins <sean at coreitpro.com> wrote:
> 
> > It's not a case of cloud-init supporting IPv6 - The Amazon EC2 metadata
> > API defines transport level details about the API - and currently only
> > defines a well known IPv4 link local address to connect to. No well known
> > link local IPv6 address has been defined.
> >
> > I usually recommend config-drive for IPv6 enabled clouds due to this.
> > --
> > Sent from my Android device with K-9 Mail. Please excuse my brevity.
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> >



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