When using IPv6 provisioning, the undercloud install process fails when trying to create the router on the ctlplane subnet with the error
2018-03-09 15:01:04,235 INFO: Subnet created openstack.network.v2.subnet.Subnet(service_types=[], description=, enable_dhcp=True, tags=[], network_id=d877b121-ef39-4965-971e-5e1efb18d57d, tenant_id=c42e87088e92463088cc03b5a2e7a8d2, created_at=2018-03-09T15:01:03Z, segment_id=None, dns_nameservers=[], updated_at=2018-03-09T15:01:03Z, gateway_ip=fd00:1101::1, ipv6_ra_mode=dhcpv6-stateless, allocation_pools=[{u'start': u'fd00:1101::100', u'end': u'fd00:1101::fff'}], host_routes=[], revision_number=0, ip_version=6, ipv6_address_mode=dhcpv6-stateless, cidr=fd00:1101::/64, id=a22c72a1-1b36-42da-b693-53a5afc4f0f3, subnetpool_id=None, name=ctlplane-subnet)
2018-03-09 15:01:04,260 ERROR: Create router for subnet ctlplane-subnet failed: NotFoundException: Unknown error
2018-03-09 15:01:04,260 DEBUG: An exception occurred
Traceback (most recent call last):
File "/usr/lib/python2.7/site-packages/instack_undercloud/undercloud.py", line 2328, in install
_post_config(instack_env, upgrade)
File "/usr/lib/python2.7/site-packages/instack_undercloud/undercloud.py", line 1995, in _post_config
_config_neutron_segments_and_subnets(sdk, network.id)
File "/usr/lib/python2.7/site-packages/instack_undercloud/undercloud.py", line 2240, in _config_neutron_segments_and_subnets
_ensure_neutron_router(sdk, name, subnet.id)
File "/usr/lib/python2.7/site-packages/instack_undercloud/undercloud.py", line 2141, in _ensure_neutron_router
router = sdk.network.create_router(name=name, admin_state_up='true')
File "/usr/lib/python2.7/site-packages/openstack/network/v2/_proxy.py", line 2239, in create_router
return self._create(_router.Router, **attrs)
File "/usr/lib/python2.7/site-packages/openstack/proxy.py", line 194, in _create
return res.create(self)
File "/usr/lib/python2.7/site-packages/openstack/resource.py", line 732, in create
self._translate_response(response)
File "/usr/lib/python2.7/site-packages/openstack/resource.py", line 664, in _translate_response
exceptions.raise_from_response(response, error_message=error_message)
File "/usr/lib/python2.7/site-packages/openstack/exceptions.py", line 205, in raise_from_response
http_status=http_status, request_id=request_id
NotFoundException: NotFoundException: Unknown error
Fix proposed to branch: master
Review: https:/