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 _configure_learned_port_channel(self, nexus_ip_list, ch_grp):
# Handle baremetal interfaces when vpc-id was learned from Nexus.
#
#:param nexus_ip_list: list of nexus switch to allocate vpcid
#:param ch_grp: learned ch_grp
try:
nxos_db.update_vpc_entry(nexus_ip_list, ch_grp, True, True)
except cexc.NexusVPCAllocNotFound:
# Valid to get this error if learned ch_grp
# not part of configured vpc_pool
pass
def test_vpcalloc_rollback(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))
nexus_db_v2.update_vpc_entry(nexus_ips, 1001, False, True)
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), 24)
nexus_db_v2.update_vpc_entry(nexus_ips, 1001, False, False)
allocs = nexus_db_v2.get_free_switch_vpc_allocs('1.1.1.1')
self.assertEqual(len(allocs), 25)
allocs = nexus_db_v2.get_free_switch_vpc_allocs('2.2.2.2')
self.assertEqual(len(allocs), 25)
allocs = nexus_db_v2.get_free_switch_vpc_allocs('3.3.3.3')
self.assertEqual(len(allocs), 25)
nexus_db_v2.update_vpc_entry(['3.3.3.3'], 1001, False, True)
try:
nexus_db_v2.update_vpc_entry(nexus_ips, 1001, False, True)
except exceptions.NexusVPCAllocNotFound:
allocs = nexus_db_v2.get_free_switch_vpc_allocs('1.1.1.1')
self.assertEqual(len(allocs), 25)
allocs = nexus_db_v2.get_free_switch_vpc_allocs('2.2.2.2')
self.assertEqual(len(allocs), 25)
allocs = nexus_db_v2.get_free_switch_vpc_allocs('3.3.3.3')
self.assertEqual(len(allocs), 24)
def test_vpc_config_db_results_with_old_config2(self):
"""Config valid vpc-pool compare with pre-existing entries."""
# 1 no add, already exists
# 6 remove not active
# 8 no remove, ACTIVE
# 11 no add, already exists
old_list = [1, 6, 8, 11]
# Pretend these already existed and make 8 active
nxos_db.init_vpc_entries('1.1.1.1', old_list)
nxos_db.update_vpc_entry(['1.1.1.1'], 8, True, True)
self._run_vpc_config_test('1.1.1.1', '1-4, 9, 11', 7, 1, 11)
def test_vpc_config_db_results_with_old_config1(self):
"""Config valid vpc-pool compare with pre-existing entries."""
# 1 will be removed,
# 3 no add, already exists
# 4 no add, already exists
# 11 will not be removed since active
old_list = [1, 3, 4, 11]
# Pretend these already existed and make 11 active
nxos_db.init_vpc_entries('1.1.1.1', old_list)
nxos_db.update_vpc_entry(['1.1.1.1'], 11, True, True)
self._run_vpc_config_test('1.1.1.1', '2-5, 8', 6, 2, 11)
def test_vpc_config_db_results_bad_config_keep_old(self):
"""Verify on config error, existing db entries stay intact."""
old_list = [1, 6, 8, 11]
# Pretend these already existed and make 8 active
nxos_db.init_vpc_entries('1.1.1.1', old_list)
nxos_db.update_vpc_entry(['1.1.1.1'], 8, True, True)
# valid port-channel values are 1-4096 on Nexus 9K
# ERROR: range starts with 0
bad_min = str(const.MINVPC - 1) + '-1001, 1002'
self._run_vpc_config_test('1.1.1.1', bad_min, 4, 1, 11)
def test_vpc_config_db_results_removal(self):
"""Allow user to remove config but only non-active."""
# 1 no add, already exists
# 6 remove not active
# 8 no remove, ACTIVE
# 11 no add, already exists
old_list = [1, 6, 8, 11]
# Pretend these already existed and make 8 active
nxos_db.init_vpc_entries('1.1.1.1', old_list)
nxos_db.update_vpc_entry(['1.1.1.1'], 8, True, True)
self._run_vpc_config_test('1.1.1.1', '', 1, 8, 8)
# Make 8 inactive and try again.
nxos_db.update_vpc_entry(['1.1.1.1'], 8, False, False)
self._run_vpc_config_test('1.1.1.1', '', 0, None, None)
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)