Hi Christian, For a more general solution you might want to look at the code that supports passing in "-availabilty_zone=az:host" (look for forced_host in compute/api.py). Currently this is limited to admin, but I think that should be changed to be a specific action that can be controlled by policy (we have a change in preparation for this).
Cheers, Phil From: openstack-bounces+philip.day=hp....@lists.launchpad.net [mailto:openstack-bounces+philip.day=hp....@lists.launchpad.net] On Behalf Of GMI M Sent: 16 October 2012 15:13 To: Christian Parpart Cc: <openstack@lists.launchpad.net> Subject: Re: [Openstack] looking for a Nova scheduler filter plugin to boot nodes on named hosts Hi Christian, I think you might be able to use the existing filters in Essex. For example, you can add the following lines in the nova.conf of the controller host (or where nova-scheduler runs) and restart nova-scheduler: isolated_hosts="nova7" isolated_images="sadsd1e35dfe63" This will allow you to run the image with ID "sadsd1e35dfe63" only on the compute host "nova7". You can also pass a list of compute servers in the isolated_hosts, if you have the need. I certainly see the use-case for this feature, for example when you want to run Windows based instances and you don't want to buy a Windows datacenter license for each nova-compute host, but only for a few that will run Windows instances. I hope this helps you. On Mon, Oct 15, 2012 at 7:45 PM, Christian Parpart <tra...@gmail.com<mailto:tra...@gmail.com>> wrote: Hi all, I am looking for a (Essex) Nova scheduler plugin that parses the scheduler_hints to get a hostname of the hypervisor to spawn the actual VM on, rejecting any other node. This allows us to explicitely spawn a VM on a certain host (yes, there are really usecases where you want that). :-) I was trying to build my own and searching around since I couldn't believe I was the only one, but didn't find one yet. Does anyone of you maybe have the skills to actually write that simple plugin, or even maybe knows where such a plugin has already been developed? Many thanks in advance, Christian Parpart. _______________________________________________ Mailing list: https://launchpad.net/~openstack<https://launchpad.net/%7Eopenstack> Post to : openstack@lists.launchpad.net<mailto:openstack@lists.launchpad.net> Unsubscribe : https://launchpad.net/~openstack<https://launchpad.net/%7Eopenstack> More help : https://help.launchpad.net/ListHelp
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