[openstack-dev] [Openstack-operators] [ironic] [nova] [tripleo] Deprecation of Nova's integration with Ironic Capabilities and ComputeCapabilitiesFilter
jaypipes at gmail.com
Thu Sep 27 23:45:01 UTC 2018
On 09/27/2018 06:23 PM, Matt Riedemann wrote:
> On 9/27/2018 3:02 PM, Jay Pipes wrote:
>> A great example of this would be the proposed "deploy template" from
>> . This is nothing more than abusing the placement traits API in
>> order to allow passthrough of instance configuration data from the
>> nova flavor extra spec directly into the nodes.instance_info field in
>> the Ironic database. It's a hack that is abusing the entire concept of
>> the placement traits concept, IMHO.
>> We should have a way *in Nova* of allowing instance configuration
>> key/value information to be passed through to the virt driver's
>> spawn() method, much the same way we provide for user_data that gets
>> exposed after boot to the guest instance via configdrive or the
>> metadata service API. What this deploy template thing is is just a
>> hack to get around the fact that nova doesn't have a basic way of
>> passing through some collated instance configuration key/value
>> information, which is a darn shame and I'm really kind of annoyed with
>> myself for not noticing this sooner. :(
> We talked about this in Dublin through right? We said a good thing to do
> would be to have some kind of template/profile/config/whatever stored
> off in glare where schema could be registered on that thing, and then
> you pass a handle (ID reference) to that to nova when creating the
> (baremetal) server, nova pulls it down from glare and hands it off to
> the virt driver. It's just that no one is doing that work.
No, nobody is doing that work.
I will if need be if it means not hacking the placement API to serve
this purpose (for which it wasn't intended).
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