feat(nova): Adds custom Nova scheduler filter for host traits#2092
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This is a custom nova scheduler filter allowing us to target ironic baremetal nodes based on their traits:
Set a custom trait on a baremetal node:
Then we can target a build to the node with the
CUSTOM_NICKtrait:openstack server create \ --flavor gp2.small \ --image 5048de36-4c01-4047-b638-195e639cb1e3 \ --nic net-id=demo-project \ --key-name nick \ --use-config-drive \ --hint trait:CUSTOM_NICK=required \ nick-traits-20260625