Comment 6 for bug 1712412

Reviewed: https://review.openstack.org/497009
Committed: https://git.openstack.org/cgit/openstack/neutron/commit/?id=47fbc6157ac4125fa068e64b573433a02c0ce0fc
Submitter: Jenkins
Branch: master

commit 47fbc6157ac4125fa068e64b573433a02c0ce0fc
Author: Swaminathan Vasudevan <email address hidden>
Date: Wed Aug 23 21:11:58 2017 -0700

    DVR: _get_floatingips_bound_to_host throws KeyError

    _get_floatingips_bound_to_host function was introduced
    recently in dvr_local_router to retrieve the external
    interface name for centralizing the floatingip.

    This function was throwing a 'KeyError' on fip['host'] and
    not required for centralized floatingips anymore.

    The get_external_device_interface_name in dvr_local_router
    will try to get the 'fg' interface that is required for
    the bound floating-ips to clear up some of the rules.
    In the case of the centralized unbound floating-ips, the
    'qg' external interface is retreived from
    get_snat_external_device_interface_name that is defined
    in 'dvr_edge_router' and based on the namespace.

    So _get_floatingips_bound_to_host can be removed from
    get_external_device_inteface_name.

    Closes-Bug: 1712412

    Change-Id: I94c0a071df32f572745a2c29942956c3da9f309b