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)