Prepare node upgrade depending on roles
Prepare node upgrade depending on roles

For 'compute' role, evacuate VMs before upgrading.
For 'ceph-osd' role, set 'noout' to ceph and update node disk settings.
Add function to get node admin IP by it's ID.

Mirantis/octane,Mirantis/octane,stackforge/fuel-octane,stackforge/fuel-octane