ovsdb.native.connection.Connection should allow schema_helper to register certain tables, instead of all

[ZongKai LI]

Patch https://review.openstack.org/#/c/302623 is partial implement for blueprint routed-networks, it tries to add Chassis table access in networking-ovn. In Chassis table, it contains column hostname and external_ids, which are needed for segment-hostname mapping in bp routed-networks.

To access Chassis table, we need build a connection to OVN_Southbound DB, and the schema_helper in that connection object will register all tables in DB [1]. But indeed, we don't need all tables in OVN_Southbound DB registered. Currently, we only need table Chassis be registered.

We should add a parameter for connection.Connection to allow it only register certain tables, and in OVS, method register_table [2] can be used for this purpose.

[1] https://github.com/openstack/neutron/blob/master/neutron/agent/ovsdb/native/connection.py#L68-L82
[2] https://github.com/open-switch/ops-openvswitch/blob/master/python/ovs/db/idl.py#L1359-L1366

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/303929

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/303929
Committed: https://git.openstack.org/cgit/openstack/neutron/commit/?id=667ea2ac7c1ef8ce6f52072639a13a833533f3ea
Submitter: Jenkins
Branch: master

commit 667ea2ac7c1ef8ce6f52072639a13a833533f3ea
Author: lzklibj <email address hidden>
Date: Mon Apr 11 15:15:05 2016 +0800

    Allow OVSDB Connection to register certain tables

    Current OVSDB Connection will register all tables with schema_helper.
    It doesn't matter for most cases, but for implementation for bp
    routed-networks in networking-ovn, we don't need all tables in OVN_
    Southbound DB are registered. We only need a certain table named
    Chassis can be registered.

    This patch add a parameter for OVSDB Connection to allow it to
    register certain tables, instead of all tables.

    Change-Id: I79df60a08a7a6c555b07a9b566d7c09b97e2463c
    Closes-Bug: #1568718

[Doug Hellmann (doug-hellmann)]

This issue was fixed in the openstack/neutron 9.0.0.0b1 development milestone.