def test_subnet_request(self):
request = ipam.AnySubnetRequest(self.tenant_id,
self.subnet_id,
constants.IPv4,
24,
gateway_ip='0.0.0.1')
self.assertEqual(24, request.prefixlen)
def test_insufficient_prefix_space_for_any_allocation(self):
sp = self._create_subnet_pool(self.plugin, self.ctx, 'test-sp',
['10.1.1.0/24', '192.168.1.0/24'], 21, 4)
sp = self.plugin._get_subnetpool(self.ctx, sp['id'])
sa = subnet_alloc.SubnetAllocator(sp)
req = ipam.AnySubnetRequest(self._tenant_id, uuidutils.generate_uuid(),
constants.IPv4, 21)
self.assertRaises(n_exc.SubnetAllocationError, sa.allocate_subnet,
self.ctx.session, req)
def test_allocate_any_subnet_gateway(self):
sp = self._create_subnet_pool(self.plugin, self.ctx, 'test-sp',
['10.1.0.0/16', '192.168.1.0/24'], 21, 4)
sp = self.plugin._get_subnetpool(self.ctx, sp['id'])
with self.ctx.session.begin(subtransactions=True):
sa = subnet_alloc.SubnetAllocator(sp)
req = ipam.AnySubnetRequest(self._tenant_id,
uuidutils.generate_uuid(),
constants.IPv4, 21)
res = sa.allocate_subnet(self.ctx.session, req)
detail = res.get_details()
self.assertEqual(detail.gateway_ip, detail.subnet.network + 1)
def _make_subnet_request(self, tenant_id, subnet, subnetpool):
cidr = subnet.get('cidr')
subnet_id = subnet.get('id', uuidutils.generate_uuid())
is_any_subnetpool_request = not attributes.is_attr_set(cidr)
if is_any_subnetpool_request:
prefixlen = subnet['prefixlen']
if not attributes.is_attr_set(prefixlen):
prefixlen = int(subnetpool['default_prefixlen'])
return ipam.AnySubnetRequest(
tenant_id, subnet_id,
utils.ip_version_from_int(subnetpool['ip_version']), prefixlen)
else:
return ipam.SpecificSubnetRequest(tenant_id, subnet_id, cidr)
def test_allocate_any_subnet(self):
prefix_list = ['10.1.0.0/16', '192.168.1.0/24']
sp = self._create_subnet_pool(self.plugin, self.ctx, 'test-sp',
prefix_list, 21, 4)
sp = self.plugin._get_subnetpool(self.ctx, sp['id'])
with self.ctx.session.begin(subtransactions=True):
sa = subnet_alloc.SubnetAllocator(sp, self.ctx)
req = ipam.AnySubnetRequest(self._tenant_id,
uuidutils.generate_uuid(),
constants.IPv4, 21)
res = sa.allocate_subnet(req)
detail = res.get_details()
prefix_set = netaddr.IPSet(iterable=prefix_list)
allocated_set = netaddr.IPSet(iterable=[detail.subnet_cidr])
self.assertTrue(allocated_set.issubset(prefix_set))
self.assertEqual(detail.prefixlen, 21)
def test_allocate_any_subnet_fails(self):
self.assertRaises(
ipam_exc.InvalidSubnetRequestType,
self.ipam_pool.allocate_subnet,
ipam.AnySubnetRequest(self._tenant_id, 'meh', constants.IPv4, 24))
