def _create_listeners_flow(self):
flows = []
flows.append(
database_tasks.ReloadLoadBalancer(
name=constants.RELOAD_LB_AFTER_AMP_ASSOC_FULL_GRAPH,
requires=constants.LOADBALANCER_ID,
provides=constants.LOADBALANCER
)
)
flows.append(
network_tasks.CalculateDelta(
requires=(constants.LOADBALANCER, constants.AVAILABILITY_ZONE),
provides=constants.DELTAS
)
)
flows.append(
network_tasks.HandleNetworkDeltas(
requires=constants.DELTAS, provides=constants.ADDED_PORTS
)
)
flows.append(
amphora_driver_tasks.AmphoraePostNetworkPlug(
requires=(constants.LOADBALANCER, constants.ADDED_PORTS)
)
)
flows.append(
self.listener_flows.get_create_all_listeners_flow()
)
flows.append(
database_tasks.MarkLBActiveInDB(
mark_subobjects=True,
requires=constants.LOADBALANCER
)
)
return flows
def get_create_member_flow(self):
"""Create a flow to create a member
:returns: The flow for creating a member
"""
create_member_flow = linear_flow.Flow(constants.CREATE_MEMBER_FLOW)
create_member_flow.add(
lifecycle_tasks.MemberToErrorOnRevertTask(requires=[
constants.MEMBER, constants.LISTENERS, constants.LOADBALANCER,
constants.POOL
]))
create_member_flow.add(
database_tasks.MarkMemberPendingCreateInDB(
requires=constants.MEMBER))
create_member_flow.add(
network_tasks.CalculateDelta(requires=constants.LOADBALANCER,
provides=constants.DELTAS))
create_member_flow.add(
network_tasks.HandleNetworkDeltas(requires=constants.DELTAS,
provides=constants.ADDED_PORTS))
create_member_flow.add(
amphora_driver_tasks.AmphoraePostNetworkPlug(
requires=(constants.LOADBALANCER, constants.ADDED_PORTS)))
create_member_flow.add(
amphora_driver_tasks.ListenersUpdate(
requires=(constants.LOADBALANCER, constants.LISTENERS)))
create_member_flow.add(
database_tasks.MarkMemberActiveInDB(requires=constants.MEMBER))
create_member_flow.add(
database_tasks.MarkPoolActiveInDB(requires=constants.POOL))
create_member_flow.add(
database_tasks.MarkLBAndListenersActiveInDB(
requires=(constants.LOADBALANCER, constants.LISTENERS)))
return create_member_flow
def get_batch_update_members_flow(self, old_members, new_members,
updated_members):
"""Create a flow to batch update members
:returns: The flow for batch updating members
"""
batch_update_members_flow = linear_flow.Flow(
constants.BATCH_UPDATE_MEMBERS_FLOW)
unordered_members_flow = unordered_flow.Flow(
constants.UNORDERED_MEMBER_UPDATES_FLOW)
unordered_members_active_flow = unordered_flow.Flow(
constants.UNORDERED_MEMBER_ACTIVE_FLOW)
# Delete old members
unordered_members_flow.add(
lifecycle_tasks.MembersToErrorOnRevertTask(
inject={constants.MEMBERS: old_members},
name='{flow}-deleted'.format(
flow=constants.MEMBER_TO_ERROR_ON_REVERT_FLOW)))
for m in old_members:
unordered_members_flow.add(
model_tasks.DeleteModelObject(
inject={constants.OBJECT: m},
name='{flow}-{id}'.format(
id=m.id, flow=constants.DELETE_MODEL_OBJECT_FLOW)))
unordered_members_flow.add(
database_tasks.DeleteMemberInDB(
inject={constants.MEMBER: m},
name='{flow}-{id}'.format(
id=m.id, flow=constants.DELETE_MEMBER_INDB)))
unordered_members_flow.add(
database_tasks.DecrementMemberQuota(
inject={constants.MEMBER: m},
name='{flow}-{id}'.format(
id=m.id, flow=constants.DECREMENT_MEMBER_QUOTA_FLOW)))
# Create new members
unordered_members_flow.add(
lifecycle_tasks.MembersToErrorOnRevertTask(
inject={constants.MEMBERS: new_members},
name='{flow}-created'.format(
flow=constants.MEMBER_TO_ERROR_ON_REVERT_FLOW)))
for m in new_members:
unordered_members_active_flow.add(
database_tasks.MarkMemberActiveInDB(
inject={constants.MEMBER: m},
name='{flow}-{id}'.format(
id=m.id, flow=constants.MARK_MEMBER_ACTIVE_INDB)))
# Update existing members
unordered_members_flow.add(
lifecycle_tasks.MembersToErrorOnRevertTask(
# updated_members is a list of (obj, dict), only pass `obj`
inject={constants.MEMBERS: [m[0] for m in updated_members]},
name='{flow}-updated'.format(
flow=constants.MEMBER_TO_ERROR_ON_REVERT_FLOW)))
for m, um in updated_members:
um.pop('id', None)
unordered_members_active_flow.add(
database_tasks.MarkMemberActiveInDB(
inject={constants.MEMBER: m},
name='{flow}-{id}'.format(
id=m.id, flow=constants.MARK_MEMBER_ACTIVE_INDB)))
batch_update_members_flow.add(unordered_members_flow)
# Done, do real updates
batch_update_members_flow.add(
network_tasks.CalculateDelta(requires=constants.LOADBALANCER,
provides=constants.DELTAS))
batch_update_members_flow.add(
network_tasks.HandleNetworkDeltas(requires=constants.DELTAS,
provides=constants.ADDED_PORTS))
batch_update_members_flow.add(
amphora_driver_tasks.AmphoraePostNetworkPlug(
requires=(constants.LOADBALANCER, constants.ADDED_PORTS)))
# Update the Listener (this makes the changes active on the Amp)
batch_update_members_flow.add(
amphora_driver_tasks.ListenersUpdate(
requires=(constants.LOADBALANCER, constants.LISTENERS)))
# Mark all the members ACTIVE here, then pool then LB/Listeners
batch_update_members_flow.add(unordered_members_active_flow)
batch_update_members_flow.add(
database_tasks.MarkPoolActiveInDB(requires=constants.POOL))
batch_update_members_flow.add(
database_tasks.MarkLBAndListenersActiveInDB(
requires=(constants.LOADBALANCER, constants.LISTENERS)))
return batch_update_members_flow
def test_calculate_delta(self, mock_get_net_driver):
mock_driver = mock.MagicMock()
mock_get_net_driver.return_value = mock_driver
EMPTY = {}
empty_deltas = {
self.amphora_mock.id:
data_models.Delta(amphora_id=self.amphora_mock.id,
compute_id=self.amphora_mock.compute_id,
add_nics=[],
delete_nics=[])
}
calc_delta = network_tasks.CalculateDelta()
self.assertEqual(EMPTY, calc_delta.execute(self.load_balancer_mock))
# Test with one amp and no pools, nothing plugged
# Delta should be empty
mock_driver.reset_mock()
self.amphora_mock.load_balancer = self.load_balancer_mock
self.load_balancer_mock.amphorae = [self.amphora_mock]
self.load_balancer_mock.pools = []
self.assertEqual(empty_deltas,
calc_delta.execute(self.load_balancer_mock))
mock_driver.get_plugged_networks.assert_called_once_with(COMPUTE_ID)
# Pool mock should be configured explicitly for each test
pool_mock = mock.MagicMock()
self.load_balancer_mock.pools = [pool_mock]
# Test with one amp and one pool but no members, nothing plugged
# Delta should be empty
pool_mock.members = []
self.assertEqual(empty_deltas,
calc_delta.execute(self.load_balancer_mock))
# Test with one amp and one pool and one member, nothing plugged
# Delta should be one additional subnet to plug
mock_driver.reset_mock()
member_mock = mock.MagicMock()
member_mock.subnet_id = 1
pool_mock.members = [member_mock]
mock_driver.get_subnet.return_value = data_models.Subnet(id=2,
network_id=3)
ndm = data_models.Delta(amphora_id=self.amphora_mock.id,
compute_id=self.amphora_mock.compute_id,
add_nics=[data_models.Interface(network_id=2)],
delete_nics=[])
self.assertEqual({self.amphora_mock.id: ndm},
calc_delta.execute(self.load_balancer_mock))
vrrp_port_call = mock.call(self.amphora_mock.vrrp_port_id)
mock_driver.get_port.assert_has_calls([vrrp_port_call])
self.assertEqual(1, mock_driver.get_port.call_count)
member_subnet_call = mock.call(member_mock.subnet_id)
mock_driver.get_subnet.assert_has_calls([member_subnet_call])
self.assertEqual(1, mock_driver.get_subnet.call_count)
# Test with one amp and one pool and one member, already plugged
# Delta should be empty
mock_driver.reset_mock()
member_mock = mock.MagicMock()
member_mock.subnet_id = 1
pool_mock.members = [member_mock]
mock_driver.get_plugged_networks.return_value = [
data_models.Interface(network_id=2)
]
self.assertEqual(empty_deltas,
calc_delta.execute(self.load_balancer_mock))
# Test with one amp and one pool and one member, wrong network plugged
# Delta should be one network to add and one to remove
mock_driver.reset_mock()
member_mock = mock.MagicMock()
member_mock.subnet_id = 1
pool_mock.members = [member_mock]
mock_driver.get_plugged_networks.return_value = [
data_models.Interface(network_id=3)
]
ndm = data_models.Delta(
amphora_id=self.amphora_mock.id,
compute_id=self.amphora_mock.compute_id,
add_nics=[data_models.Interface(network_id=2)],
delete_nics=[data_models.Interface(network_id=3)])
self.assertEqual({self.amphora_mock.id: ndm},
calc_delta.execute(self.load_balancer_mock))
# Test with one amp and one pool and no members, one network plugged
# Delta should be one network to remove
mock_driver.reset_mock()
pool_mock.members = []
mock_driver.get_plugged_networks.return_value = [
data_models.Interface(network_id=2)
]
ndm = data_models.Delta(
amphora_id=self.amphora_mock.id,
compute_id=self.amphora_mock.compute_id,
add_nics=[],
delete_nics=[data_models.Interface(network_id=2)])
self.assertEqual({self.amphora_mock.id: ndm},
calc_delta.execute(self.load_balancer_mock))