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From Kevin Kluge <Kevin.Kl...@citrix.com>
Subject RE: Multiple IP's to one instance
Date Mon, 26 Nov 2012 18:52:39 GMT
Yes, anyone doing hosting will view this as a critical requirement for self-service infrastructure.
 This is true for SPs like you mention but also a private cloud supporting multiple web sites.

-kevin

> -----Original Message-----
> From: Clayton Weise [mailto:cweise@iswest.net]
> Sent: Wednesday, November 21, 2012 6:41 PM
> To: 'cloudstack-users@incubator.apache.org'
> Subject: RE: Multiple IP's to one instance
> 
> > I also argue that what they are asking for really is in conflict of the purpose
of
> a cloud environment.
> 
> I think this depends on the scope of who the cloud owner is.  If the owner is a
> single organization then yes, I would agree.  However if the owner is a service
> provider, than I would disagree.  I know there are larger things on the table for
> the ACS crew, so I'm not going to try and make a judgment call here as to how
> they should prioritize because that's really more up to the community at large
> and what kind of feedback they get from their paying clients (CloudPlatform) as
> well.  And that's not something I think either of us have the data to make a
> decision on.
> 
> That being said, I don't know what kind of work is involved in adding a feature
> like this, and how much it would actually detract from the future development
> of ACS.  I know it's something that has come up in IRC on more than a few
> occasions and it's not the first time we've seen it on the mailing list either.  I
> would also encourage anybody involved in the community with the skills
> required to work out a tech spec on this and put something more formal
> together.  I think part of the issue has been the fact (as we've seen) that there
> isn't a solid consensus on how to even accomplish this, let alone the specific
> mechanics of how it will work.
> 
> -----Original Message-----
> From: Boylan, James [mailto:JAMES.BOYLAN@orbitz.com]
> Sent: Wednesday, November 21, 2012 5:51 PM
> To: 'cloudstack-users@incubator.apache.org'
> Subject: Re: Multiple IP's to one instance
> 
> I also argue that what they are asking for really is in conflict of the purpose of a
> cloud environment. If you are merely after a virtualized environment you can
> use vsphere, kvm with virt-manager or xenserver. Multiple IPs per nic do nothing
> to improve the performance or the functionality of a cloud environment.
> 
> Going down the road of adding features like that would be taking valuable
> development time away from tasks and features that actually benefit a cloud
> architecture. While I do understand their issue, there are other ways of
> implementing what they are listing as reasons that is cloud architecture friendly.
> (using NAT and isolated private networks for one)
> 
> -- James
> 
> ----- Original Message -----
> From: David Nalley [mailto:david@gnsa.us]
> Sent: Wednesday, November 21, 2012 06:12 PM
> To: cloudstack-users@incubator.apache.org <cloudstack-
> users@incubator.apache.org>
> Subject: Re: Multiple IP's to one instance
> 
> >  - it is expected that there is a 'primary ip' assigned by DHCP and
> > the additional ips are assigned manually by the VM owner. However
> > additional ips are requested through CS API/UI.
> 
> I am conflicted on this - I know the limitations with adding additional interfaces.
> I'd almost argue for requiring number of interfaces/IPs to be set at machine
> instantiation and still handing out addresses to all interfaces via DHCP, but not
> all OSes will handle that cleanly.

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