def test_vpcalloc_init(self):
nexus_ips = ['1.1.1.1', '2.2.2.2', '3.3.3.3']
for this_ip in nexus_ips:
nexus_db_v2.init_vpc_entries(
this_ip, self._make_vpc_list(1001, 1025))
allocs = nexus_db_v2.get_free_switch_vpc_allocs(this_ip)
self.assertEqual(len(allocs), 25)
nexus_db_v2.update_vpc_entry(['1.1.1.1'], 1001, False, True)
nexus_db_v2.update_vpc_entry(['2.2.2.2'], 1002, False, True)
nexus_db_v2.update_vpc_entry(['3.3.3.3'], 1003, False, True)
# Verify this update fails since entry already active
self.assertRaises(
exceptions.NexusVPCAllocNotFound,
nexus_db_v2.update_vpc_entry,
['3.3.3.3'], 1003, False, True)
new_vpcid = nexus_db_v2.alloc_vpcid(nexus_ips)
self.assertEqual(new_vpcid, 1004)
nexus_db_v2.free_vpcid_for_switch(1002, '2.2.2.2')
nexus_db_v2.free_vpcid_for_switch_list(1004, nexus_ips)
# verify vpc 1002 can now be reused
new_vpcid = nexus_db_v2.alloc_vpcid(nexus_ips)
self.assertEqual(new_vpcid, 1002)
def test_vpcalloc_test_alloc_collision(self):
def new_get_free_vpcids_on_switches(nexus_ips):
results = nexus_db_v2.get_free_switch_vpc_allocs('4.4.4.4')
return results
nexus_ips = ['1.1.1.1', '2.2.2.2', '3.3.3.3']
for this_ip in nexus_ips:
nexus_db_v2.init_vpc_entries(
this_ip, self._make_vpc_list(1001, 1025))
# IP 4.4.4.4 is added only to return a list of vpc ids
# in same format as sql will return.
nexus_db_v2.init_vpc_entries(
'4.4.4.4', self._make_vpc_list(1001, 1003))
mock.patch.object(nexus_db_v2,
'_get_free_vpcids_on_switches',
new=new_get_free_vpcids_on_switches).start()
# configure '3.3.3.3', vpcid 1001 so alloc_vpcid will fail
# on 1001 after updating 1.1.1.1 and 2.2.2.2 and rollback
# occurs. Then moves onto successfully allocating 1002.
nexus_db_v2.update_vpc_entry(['3.3.3.3'], 1001, False, True)
vpc_id = nexus_db_v2.alloc_vpcid(nexus_ips)
self.assertEqual(vpc_id, 1002)
allocs = nexus_db_v2.get_free_switch_vpc_allocs('1.1.1.1')
self.assertEqual(len(allocs), 24)
allocs = nexus_db_v2.get_free_switch_vpc_allocs('2.2.2.2')
self.assertEqual(len(allocs), 24)
allocs = nexus_db_v2.get_free_switch_vpc_allocs('3.3.3.3')
self.assertEqual(len(allocs), 23)
def _get_new_baremetal_portchannel_id(self, nexus_ip_list):
# Gets initial channel group id for list of nexus switches.
#
# :param nexus_ip_list: list of nexus switch to allocate vpcid
# :returns ch_grp: vpc_id allocated
# When allocating vpcid, it must be unique for
# all switches in the set; else error out.
ch_grp = nxos_db.alloc_vpcid(nexus_ip_list)
if ch_grp == 0:
nexus_ip_list.sort()
ip_str_list = ','.join('%s' % ip for ip in nexus_ip_list)
raise cexc.NexusVPCAllocFailure(switches=ip_str_list)
return ch_grp