Comment 11 for bug 1524745

Reviewed: https://review.openstack.org/393848
Committed: https://git.openstack.org/cgit/openstack/ironic/commit/?id=565a0ed6b940df2d45172065840700bbc3802c99
Submitter: Jenkins
Branch: master

commit 565a0ed6b940df2d45172065840700bbc3802c99
Author: Dmitry Tantsur <email address hidden>
Date: Fri Nov 4 17:40:42 2016 +0100

    Simplify base interfaces in ironic.drivers.base

    Move abstract definitions of get_properties and validate to BaseInterface
    and make all interfaces inherit it. This has a side effect of them getting
    clean steps methods, but they anyway won't be wired in due to a whitelist
    of interfaces in the conductor.

    The RAIDInterface contained a mistake: it didn't have an ABCMeta metaclass,
    so its @abstractmethod definitions didn't work. I've implemented get_properties
    for it to avoid breaking implementers.

    Also added interface_type to all interfaces for consistency and for future
    use in the driver composition work.

    Change-Id: Ia6708247a99ecdcf73d83e66350e8c309090b7d4
    Partial-Bug: #1524745