pdb /usr/bin/neutron-server

[root@bogon good]# cat /usr/lib/systemd/system/neutron-server.service
[Unit]
Description=OpenStack Neutron Server
After=syslog.target network.target

[Service]
Type=notify
User=neutron
ExecStart=/usr/bin/neutron-server --config-file /usr/share/neutron/neutron-dist.conf --config-dir /usr/share/neutron/server --config-file /etc/neutron/neutron.conf --config-file /etc/neutron/plugin.ini --config-dir /etc/neutron/conf.d/common --config-dir /etc/neutron/conf.d/neutron-server --log-file /var/log/neutron/server.log
PrivateTmp=true
NotifyAccess=all
KillMode=process
Restart=on-failure
TimeoutStartSec=0

[root@bogon good]# /usr/bin/python -m pdb   /usr/bin/neutron-server --config-file /usr/share/neutron/neutron-dist.conf --config-dir /usr/share/neutron/server --config-file /etc/neutron/neutron.conf --config-file /etc/neutron/plugin.ini --config-dir /etc/neutron/conf.d/common --config-dir /etc/neutron/conf.d/neutron-server --log-file /var/log/neutron/server.log
> /usr/bin/neutron-server(4)<module>()
-> import sys
(Pdb) b /usr/lib/python2.7/site-packages/networking_generic_switch/generic_switch_mech.py:554
Breakpoint 1 at /usr/lib/python2.7/site-packages/networking_generic_switch/generic_switch_mech.py:554
(Pdb) b /usr/lib/python2.7/site-packages/networking_generic_switch/generic_switch_mech.py:75
Breakpoint 2 at /usr/lib/python2.7/site-packages/networking_generic_switch/generic_switch_mech.py:75
(Pdb) c
/usr/lib/python2.7/site-packages/paste/deploy/loadwsgi.py:22: PkgResourcesDeprecationWarning: Parameters to load are deprecated.  Call .resolve and .require separately.
  return pkg_resources.EntryPoint.parse("x=" + s).load(False)
> /usr/lib/python2.7/site-packages/networking_generic_switch/generic_switch_mech.py(554)GenericSwitchDriver()
-> def _get_devices_by_physnet(self, physnet):
(Pdb) 

> /usr/lib/python2.7/site-packages/networking_generic_switch/generic_switch_mech.py(554)GenericSwitchDriver()->{'__module__': 'networking_g...c_switch_mech', '__return__': {'__module__': 'networking_g...c_switch_mech', '__return__': {'__module__': 'networking_g...c_switch_mech', '__return__': {'__module__': 'networking_g...c_switch_mech', '__return__': {'__module__': 'networking_g...c_switch_mech', '__return__': {'__module__': 'networking_g...c_switch_mech', '__return__': {...}, '_get_devices_by_physnet': <functio...aaa8a0c8>, '_is_port_bound': <staticm...aaa9c980>, ...}, '_get_devices_by_physnet': <functio...aaa8a0c8>, '_is_port_bound': <staticm...aaa9c980>, ...}, '_get_devices_by_physnet': <functio...aaa8a0c8>, '_is_port_bound': <staticm...aaa9c980>, ...}, '_get_devices_by_physnet': <functio...aaa8a0c8>, '_is_port_bound': <staticm...aaa9c980>, ...}, '_get_devices_by_physnet': <functio...aaa8a0c8>, '_is_port_bound': <staticm...aaa9c980>, ...}, '_get_devices_by_physnet': <functio...aaa8a0c8>, '_is_port_bound': <staticm...aaa9c980>, ...}

[root@bogon good]# systemctl stop  neutron-server
[root@bogon good]# netstat -lpn | grep 9696
[root@bogon good]# netstat -lpn | grep 9696
[root@bogon good]# /usr/bin/neutron-server --config-file /usr/share/neutron/neutron-dist.conf --config-dir /usr/share/neutron/server --config-file /etc/neutron/neutron.conf --config-file /etc/neutron/plugin.ini --config-dir /etc/neutron/conf.d/common --config-dir /etc/neutron/conf.d/neutron-server --log-file /var/log/neutron/server.log
/usr/lib/python2.7/site-packages/paste/deploy/loadwsgi.py:22: PkgResourcesDeprecationWarning: Parameters to load are deprecated.  Call .resolve and .require separately.
  return pkg_resources.EntryPoint.parse("x=" + s).load(False)
> /usr/lib/python2.7/site-packages/networking_generic_switch/generic_switch_mech.py(441)bind_port()
-> port = context.current
(Pdb) b /usr/lib/python2.7/site-packages/networking_generic_switch/generic_switch_mech.py:439
Breakpoint 1 at /usr/lib/python2.7/site-packages/networking_generic_switch/generic_switch_mech.py:439
(Pdb) b /usr/lib/python2.7/site-packages/networking_generic_switch/generic_switch_mech.py:554
*** Blank or comment
(Pdb) b /usr/lib/python2.7/site-packages/networking_generic_switch/generic_switch_mech.py:560
Breakpoint 2 at /usr/lib/python2.7/site-packages/networking_generic_switch/generic_switch_mech.py:560
(Pdb) b /usr/lib/python2.7/site-packages/networking_generic_switch/generic_switch_mech.py 441
*** The specified object '/usr/lib/python2.7/site-packages/networking_generic_switch/generic_switch_mech.py 441' is not a function
or was not found along sys.path.
(Pdb) b /usr/lib/python2.7/site-packages/networking_generic_switch/generic_switch_mech.py:441
Breakpoint 3 at /usr/lib/python2.7/site-packages/networking_generic_switch/generic_switch_mech.py:441
(Pdb) list
436             by the QoS service to identify the available QoS rules you
437             can use with ports.
438             """
439 B           LOG.info(" begin bond port")
440             import pdb; pdb.set_trace()
441 B->         port = context.current
442             binding_profile = port['binding:profile']
443             local_link_information = binding_profile.get('local_link_information')
444             if self._is_port_supported(port) and local_link_information:
445                 switch_info = local_link_information[0].get('switch_info')
446                 switch_id = local_link_information[0].get('switch_id')
(Pdb) p port
*** NameError: NameError("name 'port' is not defined",)
(Pdb) n
> /usr/lib/python2.7/site-packages/networking_generic_switch/generic_switch_mech.py(442)bind_port()
-> binding_profile = port['binding:profile']
(Pdb) pp port
{'admin_state_up': True,
 'allowed_address_pairs': [],
 'binding:host_id': u'bogon',
 'binding:profile': {},
 'binding:vif_details': {},
 'binding:vif_type': 'unbound',
 'binding:vnic_type': u'normal',
 'created_at': '2020-06-05T07:15:35Z',
 'description': u'',
 'device_id': u'dhcp1e481b85-0038-5c55-8cbf-1393a4953024-d25bad06-1316-4321-837e-9dde06147c05',
 'device_owner': u'network:dhcp',
 'extra_dhcp_opts': [],
 'fixed_ips': [{'ip_address': u'172.16.101.2',
                'subnet_id': u'479cefc6-9df2-4f0a-ab1d-6c0248816d22'}],
 'id': u'2ec96540-dc38-473d-aa7a-773682475832',
 'mac_address': u'fa:16:3e:6c:ee:a6',
 'name': u'',
 'network_id': u'd25bad06-1316-4321-837e-9dde06147c05',
 'port_security_enabled': False,
 'project_id': u'46cc02c6fab04f7095c4bc687d397610',
 'revision_number': 14,
 'security_groups': [],
 'status': u'DOWN',
 'tags': [],
 'tenant_id': u'46cc02c6fab04f7095c4bc687d397610',
 'updated_at': '2020-06-08T06:30:01Z'}
(Pdb) n