Do not defer allocation if fixed-ips is in the port create request.

[OpenStack Infra]

https://review.openstack.org/499954
Dear bug triager. This bug was created since a commit was marked with DOCIMPACT.
Your project "openstack/neutron" is set up so that we directly report the documentation bugs against it. If this needs changing, the docimpact-group option needs to be added for the project. You can ask the OpenStack infra team (#openstack-infra on freenode) for help if you need to.

commit 630b2d1a5e8b8c6926a590eb87fedde12624c3da
Author: Harald Jensas <email address hidden>
Date: Sun Jun 4 23:41:19 2017 +0200

    Do not defer allocation if fixed-ips is in the port create request.

    Fix a usage regression, use case #2 in Nova Neutron Routed Networks spec
    https://specs.openstack.org/openstack/nova-specs/specs/newton/implemented/neutron-routed-networks.html

    Currently ip allocation is always deferred if binding:host_id is not
    specified when routed networks are used. This causes initial fixed-ips
    data provided by the user to be _lost_ unless the user also specify the
    host.

    Since the user specified the IP or Subnet to allocate in, there is no
    reason to defer the allocation.

    a) It is a common pattern, especially in Heat templates to:
     1. Create a port with fixed-ips specifying a subnet.
     2. Create a server and associate the existing port.
    b) It is also common to use Neutron IPAM as a source to get VIP
       addresses for clusters on provider networks.

    This change enables these use cases with routed networks.

    DocImpact: "The Networking service defers assignment of IP addresses to
    the port until the particular compute node becomes apparent." This is no
    longer true if fixed-ips is used in the port create request.

    Change-Id: I86d4aafa1f8cd425cb1eeecfeaf95226d6d248b4
    Closes-Bug: #1695740
    (cherry picked from commit 33e48cf84db0f6b51a0f981499bbd341860b6c1c)

[Swaminathan Vasudevan (swaminathan-vasudevan)]

Seems a DOC bug that need to be pursued.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/510689

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/510689
Committed: https://git.openstack.org/cgit/openstack/neutron/commit/?id=2ac329b90274ecbf7dd3234b39c74dc974658c30
Submitter: Jenkins
Branch: master

commit 2ac329b90274ecbf7dd3234b39c74dc974658c30
Author: Boden R <email address hidden>
Date: Mon Oct 9 14:49:49 2017 -0600

    clarify deferred fixed IP assignment for ports on routed networks

    This patch clarifies the routed network configuration doc with respect
    to when a fixed IP is assigned to a port on a routed network. For
    more details see related bug.

    Change-Id: Id8e97afdfc488069ac3a910e017c34b085b4eb36
    Closes-Bug: #1718320

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/neutron 12.0.0.0b1 development milestone.