Allow access to all test vm IPs in scenario testing

[Dirk Mueller]

When the manila service vm is running in the floating network
and doesn't have a direct connection to the tempest test network,
the connections will appear to come from the test VM floating IP.

So instead of allowing only the first interface IP, allow access
from all IPs of the instance and assign the floating ip to the
instance before allowing access for all instance IPs.

[OpenStack Infra (hudson-openstack)]

Change abandoned by Dirk Mueller (<email address hidden>) on branch: master
Review: https://review.openstack.org/282096
Reason: https://review.openstack.org/#/c/374581/ proposaled almost 6 months after my change fixes this as well, so there is no point in looking at this further. There was no bug report filed for that one even though the same reviewer commented this one as -1 and then got his change in without any bug reference :-(

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: stable/newton
Review: https://review.openstack.org/420430

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/420748

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/420430
Committed: https://git.openstack.org/cgit/openstack/manila/commit/?id=032af06a6f514560a8e4574089b9c0dcb5bf112f
Submitter: Jenkins
Branch: stable/newton

commit 032af06a6f514560a8e4574089b9c0dcb5bf112f
Author: Dirk Mueller <email address hidden>
Date: Sun Jan 15 18:25:09 2017 +0100

    Backport for scenario tests access fixes

    Partial backport of
    https://review.openstack.org/#/c/374581/

    Change-Id: Ib0d66a012bbf6f26dcbe98640278bff8ecfa9e1a
    Closes-Bug: 1650731

[OpenStack Infra (hudson-openstack)]

Change abandoned by Tom Barron (<email address hidden>) on branch: master
Review: https://review.openstack.org/420748
Reason: No activity since Jan 2017; restore and rebase if appropriate.

[Jason Grosso (jgrosso)]

Closing because of inactivity. Feel free to re-open and pose another change