boot order for instance

Registered by Angelo Matarazzo on 2014-10-22

Currently, Nova supports disk, cdrom and floppy as boot device type
and the user can specify the boot order through the following command:

$ nova boot ... --block-device bootindex=integer

This blueprint aims to provide the possibility to define a boot order across devices , whether disk, nic or PCI assigned device.
In this way the instance can also boot from network interface bypassing the image/snapshot/volume requirement.
The blueprint also proposes to extend the Nova boot command in a way that the --block-device-mapping and --nic args both
allow for an integer boot priority value to be specified per device and not only per device type.

Example
$ nova boot ... --block-device bootindex=integer ... --nic bootindex=integer

This blueprint is related to
https://blueprints.launchpad.net/nova/+spec/libvirt-empty-vm-boot-pxe
and inspired by
https://wiki.openstack.org/wiki/Nova/Blueprints/pxe-boot-instance
References:
http://lists.openstack.org/pipermail/openstack-dev/2014-October/047633.html

Blueprint information

Status:
Not started
Approver:
None
Priority:
Undefined
Drafter:
Pasquale Porreca
Direction:
Needs approval
Assignee:
Pasquale Porreca
Definition:
New
Series goal:
None
Implementation:
Not started
Milestone target:
None

Related branches

Sprints

Whiteboard

(?)

Work Items

This blueprint contains Public information 
Everyone can see this information.