** Changed in: neutron
Status: Fix Committed => Fix Released
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https://bugs.launchpad.net/bugs/1499406
Title:
The option force_metadata = True is broken
Status in neutron:
Fix Released
Bug description:
Initially found here: https://bugzilla.redhat.com/show_bug.cgi?id=1256816#c9
Patch https://review.openstack.org/#/c/211963 intreduces a regression with
force_metadata = True.
Using the option force_metadata = True can will cause neutron to fail:
ERROR neutron.agent.dhcp.agent [-] Unable to enable dhcp for
ef93213d-2525-4088-abdd-9f7854ca68e7.
TRACE neutron.agent.dhcp.agent Traceback (most recent call last):
TRACE neutron.agent.dhcp.agent File
"/opt/openstack/neutron/neutron/agent/dhcp/agent.py", line 115, in call_driver
TRACE neutron.agent.dhcp.agent getattr(driver, action)(**action_kwargs)
TRACE neutron.agent.dhcp.agent File
"/opt/openstack/neutron/neutron/agent/linux/dhcp.py", line 205, in enable
TRACE neutron.agent.dhcp.agent self.spawn_process()
TRACE neutron.agent.dhcp.agent File
"/opt/openstack/neutron/neutron/agent/linux/dhcp.py", line 413, in spawn_process
TRACE neutron.agent.dhcp.agent
self._spawn_or_reload_process(reload_with_HUP=False)
TRACE neutron.agent.dhcp.agent File
"/opt/openstack/neutron/neutron/agent/linux/dhcp.py", line 422, in
_spawn_or_reload_process
TRACE neutron.agent.dhcp.agent self._output_config_files()
TRACE neutron.agent.dhcp.agent File
"/opt/openstack/neutron/neutron/agent/linux/dhcp.py", line 449, in
_output_config_files
TRACE neutron.agent.dhcp.agent self._output_opts_file()
TRACE neutron.agent.dhcp.agent File
"/opt/openstack/neutron/neutron/agent/linux/dhcp.py", line 745, in
_output_opts_file
TRACE neutron.agent.dhcp.agent options, subnet_index_map =
self._generate_opts_per_subnet()
TRACE neutron.agent.dhcp.agent File
"/opt/openstack/neutron/neutron/agent/linux/dhcp.py", line 797, in
_generate_opts_per_subnet
TRACE neutron.agent.dhcp.agent subnet_dhcp_ip =
subnet_to_interface_ip[subnet.id]
TRACE neutron.agent.dhcp.agent UnboundLocalError: local variable
'subnet_to_interface_ip' referenced before assignment
Meaning, neutron won't be able to spawn a new instance of dnsmasq.
The reason for this:
when 'force_metadata = True' and 'enable_isolated_metadata = False'
(default), the subnet_to_interface_ip won't be assigned.
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