validate() is not called in the driver_vendor_passthru()

[Lucas Alvares Gomes]

The vendor.validate() method is not called as part of the driver_vendor_passthru() call on the Ironic conductor. The reason I believe is because vendor.validate() expects a task object as the first parameter and in the driver_vendor_passthru() we don't have it because there's no Node to be acquired.

I see it being fixed in two ways:

1) Modify the validate() to make task optional

2) Add a new driver_validate() as part of the VendorInterface

I think 2) is more reasonable.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/134184

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/134184
Committed: https://git.openstack.org/cgit/openstack/ironic/commit/?id=d0e7bd2973dd5ec03544b55965c805926d210eb7
Submitter: Jenkins
Branch: master

commit d0e7bd2973dd5ec03544b55965c805926d210eb7
Author: Tan Lin <email address hidden>
Date: Thu Nov 13 22:25:08 2014 +0800

    Add driver_validate()

    vendor.driver_vendor_passthru() should be validated before called
    on Ironic conductor, like vendor_passthru(). Add a new method
    driver_validate() to support this.

    Change-Id: Idff802cece01940b8ade34fa343f1bc8e76f1630
    Closes-Bug: #1391580