Comment 1 for bug 1747417

Reviewed: https://review.openstack.org/540894
Committed: https://git.openstack.org/cgit/openstack/quark/commit/?id=6e9ae2fc1b226298ef22b341322908698609d214
Submitter: Zuul
Branch: master

commit 6e9ae2fc1b226298ef22b341322908698609d214
Author: Sourav Banerjee <email address hidden>
Date: Thu Nov 2 19:52:13 2017 +0530

    Deleting a port without sg does not hit redis

    Introduced a check in security_groups.py which calls delete_vif
    (which in turn hits redis) only if security_groups is present
    in the kwargs passed to the delete_port function.

    Introduced changes in test_unmanaged_driver.py which change
    test_delete_port by explicitly passing a security_group kwarg &
    test_delete_port_redis_is_dead by asserting that delete_vif
    isn't called as there is no security_group kwarg. Added a new
    test case test_delete_port_no_security_group that verifies that
    delete_vif isn't called if no security_group kwarg (or an empty
    list) is passed.

    Change-Id: I00648f6d490e883175d6592ae64e8c742d35a035
    Closes-Bug: #1747417