powervm driver needs to pass on unsupported aggregate operations

[Matt Riedemann]

The powervm driver doesn't support aggregate host resource pools (currently the xenapi driver is the only one that does). The base compute driver class raises NotImplementedError on aggregate operations to the virt driver if the subclass doesn't pass on the method. The libvirt driver passes on the unsupported aggregate operations, the powervm driver should do the same.

This was seen in the logs from some tempest runs against the powervm driver:

http://paste.openstack.org/show/42631/

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/39297

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/39297
Committed: http://github.com/openstack/nova/commit/bb75291a37c910f38b1aaf6a9ca41dcf9eee7b44
Submitter: Jenkins
Branch: master

commit bb75291a37c910f38b1aaf6a9ca41dcf9eee7b44
Author: Matt Riedemann <email address hidden>
Date: Tue Jul 30 07:30:14 2013 -0700

    powervm: pass on unimplemented aggregate operations

    The powervm driver does not implement the add/remove/undo aggregate
    operations defined in the base ComputeDriver class which can cause
    issues when running Tempest with the powervm driver. This patch simply
    overrides the methods in the powervm driver and does a pass like in the
    libvirt driver.

    Fixes bug 1206528

    Change-Id: Ieac227f321339a4069b015303b6e713ab9fad7b7