openstack
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neutron
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neutron/neutron/objects
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Maciej Józefczyk 8f1912a1d1 [OVN] Allow IP allocation with different segments for OVN service ports 
OVN creates localport [1] for each network that has metadata
and allocate IP address from subnet within this network that has
DHCP enabled. The traffic from this port will never go outside
the chassis.

While using multiple segments with subnet linked to each segment
OVN needs to create an allocation of IP address for each of those
subnets [2] in order to generate data for OVN NBDB IPv4 DHCP Options.

The change [3] started to validate that condition, while multiple
IP addresses from different segments are tried to be allocated on
one port. We can skip this for OVN Metadata port, because there
is no reason to prevent those kind of allocation for OVN.

For stable branches we decide if a port is distributed or not
by looking for DEVICE_OWNER_DHCP device owner  and `ovn` device_id,
instead DEVICE_OWNER_DISTRIBUTED device owner.

Conflicts:
   neutron/db/ipam_backend_mixin.py
   neutron/tests/unit/db/test_ipam_pluggable_backend.py
   neutron/tests/unit/plugins/ml2/drivers/ovn/mech_driver/test_mech_driver.py

[1] http://www.openvswitch.org/support/dist-docs/ovn-architecture.7.html
[2] 5f42488a9a/neutron/plugins/ml2/drivers/ovn/mech_driver/ovsdb/ovn_client.py (L2279)
[3] https://review.opendev.org/#/c/709444/

Change-Id: Ib51cde89ed873f48db4daebc27a0980da9cc0f19
Closes-Bug: 1871608
(cherry picked from commit 8d1512afb0)
 		2020-07-27 11:53:37 +00:00
..
db remove the neutron.db._model_query module 2019-01-25 08:55:25 -07:00
extensions use object standardattributes from neutron-lib 2019-06-12 13:57:00 -06:00
logapi use object event_types from neutron-lib 2019-06-18 14:25:02 -06:00
plugins Fix queries to retrieve allocations with network_segment_range 2020-03-16 16:16:30 +00:00
port use AuthenticIPNetwork and AuthenticEUI from neutron-lib 2019-06-25 08:47:48 -06:00
qos Fix objname error in QosPolicy 2019-08-13 17:13:09 -04:00
README.rst Objects: Add README for neutron/objects directory tree 2016-10-07 15:12:20 +00:00
__init__.py Use dirname in object recursive import 2017-04-20 04:35:10 -07:00
address_scope.py Relax subnet pool network affinity constraints 2019-07-31 10:01:55 -05:00
agent.py Merge "postgresql compatibility for get_l3_agent routines" 2019-04-12 13:01:27 +00:00
auto_allocate.py [OVO] Switch to use own registry 2017-11-22 17:44:22 +01:00
base.py use object standardattributes from neutron-lib 2019-06-12 13:57:00 -06:00
common_types.py use AuthenticIPNetwork and AuthenticEUI from neutron-lib 2019-06-25 08:47:48 -06:00
conntrack_helper.py Conntrack Helper - OVO and db script 2019-05-20 18:00:18 +02:00
flavor.py [OVO] Switch to use own registry 2017-11-22 17:44:22 +01:00
floatingip.py Integration of Floating IP OVO 2017-12-04 19:30:02 +09:00
ipam.py [OVO] Switch to use own registry 2017-11-22 17:44:22 +01:00
l3_hamode.py remove neutron.common.constants 2019-04-04 14:10:26 -06:00
l3agent.py Fix pep8 E128 warnings in non-test code 2019-03-12 21:22:33 +00:00
metering.py use AuthenticIPNetwork and AuthenticEUI from neutron-lib 2019-06-25 08:47:48 -06:00
network.py Fix pep8 E128 warnings in non-test code 2019-03-12 21:22:33 +00:00
network_segment_range.py Workaround in NetworkSegmentRange OVO until "project_id" migration 2020-04-24 10:33:18 +00:00
port_forwarding.py Fix pylint R1714 (consider-using-in) refactor messages 2019-02-21 21:11:34 +00:00
ports.py Auto-delete dhcp ports on segment delete 2020-07-13 12:43:04 +02:00
provisioning_blocks.py [OVO] Switch to use own registry 2017-11-22 17:44:22 +01:00
quota.py Allow objects to opt in new engine facade 2018-02-09 04:07:34 +00:00
rbac.py Use RBACBaseObject OVO in neutron/db/rbac_db_mixin.py 2018-11-08 13:41:36 +00:00
rbac_db.py Fix list security groups performance with RBAC 2019-07-07 17:44:56 -05:00
router.py Add "Port" to "RouterPort" foreign_keys 2019-09-07 09:29:44 +00:00
securitygroup.py Filter by owner SGs when retrieving the SG rules 2020-04-14 18:37:12 +00:00
servicetype.py [OVO] Switch to use own registry 2017-11-22 17:44:22 +01:00
stdattrs.py use object standardattributes from neutron-lib 2019-06-12 13:57:00 -06:00
subnet.py [OVN] Allow IP allocation with different segments for OVN service ports 2020-07-27 11:53:37 +00:00
subnetpool.py Allow objects to opt in new engine facade 2018-02-09 04:07:34 +00:00
tag.py Fix pep8 E128 warnings in non-test code 2019-03-12 21:22:33 +00:00
trunk.py Switch to new engine facade for TrunkPlugin and TrunkSkeleton 2019-07-04 14:24:17 +00:00

README.rst

Neutron Objects

Directory

This directory is designed to contain all modules which have objects definitions shipped with core Neutron. The files and directories located inside of this directory should follow the guidelines below.

Structure

The Neutron objects tree should have the following structure:

  • The expected directory structure is flat, except for the ML2 plugins. All ML2 plugin objects should fall under the plugins subdirectory (i.e. plugins/ml2/gre_allocation).
  • Module names should use singular forms for nouns (network.py, not networks.py).