Revision as of 14:51, 6 March 2012

DevStack and XenServer

First you need to install XenServer or XCP on a physical machine.

Then there are two possible ways forward:

• Create your own Ubuntu PV VM on your XenServer, set VIRT_DRIVER=xenserver, and then run stack.sh
• Use tools/xen to build an Ubuntu PV VM for you

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Installing DevStack on your own Ubuntu paravirtualized VM

This is not really heavily tested, you are probably best looking at the approach below.

Please note:

• The VM must be running in PV mode (/sys/hypervisor/uuid is needed)
• It must be on the same hypervisor as the one you are managing

Installing DevStack by generating an Ubuntu xva

The basic process is:

• Install XenServer
• Prepare XenServer Dom0 (installs xapi plugins, and Open vSwitch isolation rules)
• Create DevStack config file, that matches your setup
• Create Ubuntu xva image
• Install xva on XenServer

You can read more about this in the readme:

• https://github.com/openstack-dev/devstack/blob/master/tools/xen/README.md

(More details coming soon...)

Useful Notes

Please note:

• For nova to work correctly with a XenServer pool, it must be created using the Host Aggregates feature
• It is intended that every XenSever has a VM running (as a minimum) the OpenStack compute worker
• When using Host Aggregates, you still have a VM on every member of the pool