openstack team mailing list archive

[Jesse Andrews <anotherjesse@xxxxxxxxx>]

I like the simple solution (#3) as well.

It gets parity for the APIs while leaving more advanced topics for the NaaS discussions.

-- Sent from my Tandy 1000sx

Jesse Andrews
anotherjesse@xxxxxxxxx



On Apr 18, 2011, at 11:36 AM, Trey Morris wrote:

> Appears my response got lost somehow. I vote for #3 as it's the most configurable (and affects nothing contrariwise). In addition to believing we use flags too often, I don't think having a flag solves the problem very well. A couple of examples show why:
> you want a few instances having floating IP(s) while others do not
> you want multiple floating IPs for an instance
> 
> -tr3buchet
> 
> On Mon, Apr 18, 2011 at 6:15 AM, Ilya Alekseyev <ilyaalekseyev@xxxxxxx> wrote:
> Mark,
> 
> approach #1 implementation is here: https://code.launchpad.net/~openstack-gd/nova/auto-float-ip. I saw that you interested in approach #3 too. May be you have some ideas of specification of API for approach #3?
> 
> Erik,
> there is implementation of floating ips in Nova. In implementation of approach #1 we just care about auto assigning/deassigning. As I know floating ip implemented like NAT from network nodes.
> 
> 
> 2011/4/17 Mark Washenberger <mark.washenberger@xxxxxxxxxxxxx>
> Eldar,
> 
>  
> I'm having some trouble finding the diff for your implementation of approach #1. Any chance you can share it on the list?
> 
>  
> Thanks
> 
>  
> 
> "Erik Carlin" <erik.carlin@xxxxxxxxxxxxx> said:
> 
> > Cool. Got it. Floating IPs or what Amazon calls Elastic IPs. How are you
> > solving the cross L2 problem?
> > 
> > Erik
> > 
> > Sent from my iPhone
> > 
> > On Apr 15, 2011, at 7:28 PM, "Eldar Nugaev" <enugaev@xxxxxxxxxxxxxxxx>
> 
> > wrote:
> > 
> > > Hi Erik
> > >
> > > Thank you for response!
> > > Yes, you are absolutely right OpenStack API already support shared IP
> > groups.
> > > Suppose there are some misunderstanding, because I wrote about floating IPs.
> > >
> > > I want to have API for association IPs from floating IPs pool with
> > > particular VM.
> > >
> > > At this moment we have #1 implementation as a path in our RPM repo
> > > http://yum.griddynamics.net/. And going to make the merge proposal to
> > > trunk.
> > >
> > > Also we going to create blueprint about #3 and attach branch to it.
> > >
> > > Eldar
> > >
> > > On Sat, Apr 16, 2011 at 2:34 AM, Erik Carlin
> > <erik.carlin@xxxxxxxxxxxxx> wrote:
> > >> Eldar -
> > >>
> > >> The OpenStack API already supports sharing IPs between instances
> > (although
> > >> this may be an extension?). What exact behavior are you after? More
> > >> important than the way in which we expose via the API is how it's
> > >> implemented. It's important to note that this is extremely network
> > >> topology dependent. Sharing IPs today requires L2 adjacency so other
> > VMs
> > >> can GARP for the IP. L2 doesn't work at scale so you need another
> > >> mechanism. I'm pretty sure the way AWS does it is to have a separate
> > pool
> > >> of IPs and inject /32 routes higher up that route towards the
> > appropriate
> > >> VM IP. What are your thoughts around how this would be implemented?
> > >>
> > >> Multiple people are working towards an independent Network as a Service
> > >> external to nova so it may make sense to plug this requirement in there.
> > >>
> > >> Erik
> > >>
> > >> On 4/11/11 8:31 AM, "Eldar Nugaev" <enugaev@xxxxxxxxxxxxxxxx>
> > wrote:
> > >>
> > >>> Hello everyone,
> > >>>
> > >>> We going to add possibility to assigning floating IP addresses in
> > >>> OpenStack API.
> > >>> Our goal reproduce AWS behavior when creating instance automatically
> > >>> assigns any free floating IP or add methods to OpenStack API for
> > >>> allocation and association API addresses.
> > >>>
> > >>> At this time we see three way:
> > >>>
> > >>> 1. FLAG --auto_assign_floating_ip (default=False)
> > >>> 2. Optional parameter "auto_assign_floating_ip" in existing "create"
> > >>> method
> > >>> 3. OpenStack API add floating_ip - allocate_floating_ip,
> > >>> associate_floating_ip
> > >>>
> > >>> What way is more suitable at this time?
> > >>>
> > >>> --
> > >>> Eldar
> > >>> Skype: eldar.nugaev
> > >>>
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> > >>
> > >>
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> > >
> > > --
> > > Eldar
> > > Skype: eldar.nugaev
> > 
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