powervm_img_remote_path and powervm_img_local_path required but not enforced by powervm driver

[David Peraza]

powervm_img_local_path and powervm_img_remote_path are required by the powervm driver for very much every supported operation. However, driver loads without issues and user discovers the config options where not set when they get strange "no such file or directory erros" to simplify debugging and as an early detection, I recommend raising a well defined exception that will let user know they need to set these variables ad driver load time. That is driver will fail to load if this vars are not set to valid Unix paths.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/22907

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/22907
Committed: http://github.com/openstack/nova/commit/3036eb4fea76a389eb7f8a13251f19076e3a7d8c
Submitter: Jenkins
Branch: master

commit 3036eb4fea76a389eb7f8a13251f19076e3a7d8c
Author: David Peraza <email address hidden>
Date: Mon Feb 25 05:49:04 2013 +0000

    Makes sure required powervm config options are set

    Fixes bug 1132931

    Defaulting values of powervm_img_local_path and
    powervm_img_remote_path configuration options.

    Change-Id: I310422bccb84fc0ae12e43b06b4d85e683a91daf