API and Conductor raise different exceptions when rejecting a request due to maintenance mode

[aeva black]

The API service and the Conductor service both check if a node is in maintenance mode before starting to provision it, but they raise different exceptions.

API raises NodeInMaintenance

Conductor raises InstanceDeployFailure

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/77426

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/77426
Committed: https://git.openstack.org/cgit/openstack/ironic/commit/?id=dc92f2f5a38e4f7af0b0e3a74cfce9091bc51c82
Submitter: Jenkins
Branch: master

commit dc92f2f5a38e4f7af0b0e3a74cfce9091bc51c82
Author: Rohan Kanade <email address hidden>
Date: Sun Mar 2 13:58:01 2014 +0100

    Fix wrong exception raised by conductor for node

    * Conductor should raise NodeInMaintenance exception while provisioning
      node which is under maintainence, same as the exception raised by the
      REST API

    Change-Id: Ieab302fb96c7b1c11eaefc79621f0c635a16fefc
    Closes-Bug: #1286410