please add a 'region_name' configuration in kuryr/lib/config

[XuShimin]

In kuryr/kuryr/lib/utils.py, the neutronclient function is as follows:

   def get_neutron_client(*args, **kwargs):
       conf_group = kuryr_config.neutron_group.name
       auth_plugin = get_auth_plugin(conf_group)
       session = get_keystone_session(conf_group, auth_plugin)
       endpoint_type = getattr(getattr(cfg.CONF, conf_group), 'endpoint_type')

       return client.Client(session=session,
                            auth=auth_plugin,
                            endpoint_type=endpoint_type)

However, in multi-region scenario (For example, Tricircle scenario), some users need to specify which region's neutronclient api to call, so that they can implement their own neutron network function.

So, I think you can add 'region_name' configuration in neutronclient function. Maybe like this:

    def get_neutron_client(*args, **kwargs):
        conf_group = kuryr_config.neutron_group.name
        auth_plugin = get_auth_plugin(conf_group)
        session = get_keystone_session(conf_group, auth_plugin)
        endpoint_type = getattr(getattr(cfg.CONF, conf_group), 'endpoint_type')

#++# region_name = getattr(getattr(cfg.CONF, conf_group), 'region_name')

#**# return client.Client(session=session,
                             auth=auth_plugin,
                             endpoint_type=endpoint_type,
                             region_name=region_name)

Meanwhile, register 'region_name' option in kuryr conf.

[XuShimin (xushimin19921123)]

Some users need to specify 'region_name' or 'endpoint' option rather than by default.

[ZhangChi (chzhang8)]

https://review.opendev.org/#/c/678707/

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.opendev.org/678707
Committed: https://git.openstack.org/cgit/openstack/kuryr/commit/?id=50da6c1b30cb747a64602924d3d139185c92ff95
Submitter: Zuul
Branch: master

commit 50da6c1b30cb747a64602924d3d139185c92ff95
Author: zhangchi <email address hidden>
Date: Tue Aug 27 09:25:54 2019 +0800

    add region_name in get neutron client to support multi-region scene

    kuryr should support neutron client in multi-region scene as follows:

    https://bugs.launchpad.net/kuryr/+bug/1831684

    Closes-Bug: 1831684

    Change-Id: I91315885a56c5cfb313b73b1eddc3935bc200c6c

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/kuryr 1.1.0 release.