def test_no_draining(self):
"""
Doesnt fetch feeds if all nodes are ENABLED
"""
seq = [
lb_req('loadbalancers', True,
{'loadBalancers': [{
'id': 1
}, {
'id': 2
}]}),
parallel_sequence([[nodes_req(1, [node('11', 'a11')])],
[nodes_req(2, [node('21', 'a21')])],
[lb_hm_req(1, {})], [lb_hm_req(2, {})]]),
parallel_sequence([]) # No nodes to fetch
]
make_desc = partial(CLBDescription,
port=20,
weight=2,
condition=CLBNodeCondition.ENABLED,
type=CLBNodeType.PRIMARY)
eff = get_clb_contents()
self.assertEqual(perform_sequence(seq, eff), ([
CLBNode(
node_id='11', address='a11', description=make_desc(lb_id='1')),
CLBNode(
node_id='21', address='a21', description=make_desc(lb_id='2'))
], {
'1': CLB(False),
'2': CLB(False)
}))
def test_success(self):
"""
The data is returned as a tuple of ([NovaServer], [CLBNode/RCv3Node]).
"""
clb_nodes = [CLBNode(node_id='node1', address='ip1',
description=CLBDescription(lb_id='lb1', port=80))]
rcv3_nodes = [RCv3Node(node_id='node2', cloud_server_id='a',
description=RCv3Description(lb_id='lb2'))]
eff = get_all_launch_server_data(
'tid',
'gid',
self.now,
get_scaling_group_servers=_constant_as_eff(
('tid', 'gid', self.now), self.servers),
get_clb_contents=_constant_as_eff((), clb_nodes),
get_rcv3_contents=_constant_as_eff((), rcv3_nodes))
expected_servers = [
server('a', ServerState.ACTIVE, servicenet_address='10.0.0.1',
links=freeze([{'href': 'link1', 'rel': 'self'}]),
json=freeze(self.servers[0])),
server('b', ServerState.ACTIVE, created=1,
servicenet_address='10.0.0.2',
links=freeze([{'href': 'link2', 'rel': 'self'}]),
json=freeze(self.servers[1]))
]
self.assertEqual(resolve_stubs(eff),
{'servers': expected_servers,
'lb_nodes': clb_nodes + rcv3_nodes})
def test_active_if_node_is_draining(self):
"""
If the node is DRAINING, :func:`CLBNode.is_active` returns `True`.
"""
node = CLBNode(node_id='1234', description=self.drain_desc,
address='10.1.1.1', drained_at=0.0, connections=1)
self.assertTrue(node.is_active())
def test_current_draining_false_if_description_not_draining(self):
"""
:func:`CLBNode.currently_draining` returns `False` if
`CLBNode.description.condition` is not :obj:`CLBNodeCondition.DRAINING`
"""
node = CLBNode(node_id='1234', description=self.desc, address='10.1.1.1')
self.assertFalse(node.currently_draining())
def test_lb_disappeared_during_node_fetch(self):
"""
If a load balancer gets deleted while fetching nodes, no nodes will be
returned for it.
"""
seq = [
lb_req('loadbalancers', True,
{'loadBalancers': [{
'id': 1
}, {
'id': 2
}]}),
parallel_sequence([[nodes_req(1, [node('11', 'a11')])],
[
lb_req('loadbalancers/2/nodes', True,
CLBNotFoundError(lb_id=u'2'))
], [lb_hm_req(1, {"type": "CONNECT"})],
[
lb_req('loadbalancers/2/healthmonitor',
True, CLBNotFoundError(lb_id=u'2'))
]]),
parallel_sequence([]) # No node feeds to fetch
]
make_desc = partial(CLBDescription,
port=20,
weight=2,
condition=CLBNodeCondition.ENABLED,
type=CLBNodeType.PRIMARY)
eff = get_clb_contents()
self.assertEqual(perform_sequence(seq, eff), ([
CLBNode(
node_id='11', address='a11', description=make_desc(lb_id='1'))
], {
'1': CLB(True)
}))
def test_done_draining_before_timeout_if_there_are_no_connections(self):
"""
If there are zero connections, but the node has been in draining less
than the timeout, :func:`CLBNode.is_done_draining` returns `True`.
"""
node = CLBNode(node_id='1234', description=self.drain_desc,
address='10.1.1.1', drained_at=0.0, connections=0)
self.assertTrue(node.is_done_draining(now=15, timeout=30))
def test_done_draining_past_timeout_even_if_there_are_connections(self):
"""
If there are still connections, but the node has been in draining past
the timeout, :func:`CLBNode.is_done_draining` returns `True`.
"""
node = CLBNode(node_id='1234', description=self.drain_desc,
address='10.1.1.1', drained_at=0.0, connections=1)
self.assertTrue(node.is_done_draining(now=30, timeout=15))
def test_current_draining_true_if_description_is_draining(self):
"""
:func:`CLBNode.currently_draining` returns `True` if
`CLBNode.description.condition` is :obj:`CLBNodeCondition.DRAINING`
"""
node = CLBNode(node_id='1234', description=self.drain_desc,
address='10.1.1.1')
self.assertTrue(node.currently_draining())
def test_provides_ILBDescription_and_IDrainable(self):
"""
An instance of :class:`CLBNode` provides :class:`ILBNode` and
:class:`IDrainable`.
"""
node = CLBNode(node_id='1234', description=self.desc, address='10.1.1.1')
self.assertTrue(ILBNode.providedBy(node))
self.assertTrue(IDrainable.providedBy(node))
def test_not_done_draining_before_timeout_if_no_connection_info(self):
"""
If connection information is not provided, and the node has been in
draining less than the timeout, :func:`CLBNode.is_done_draining`
returns `False`.
"""
node = CLBNode(node_id='1234', description=self.drain_desc,
address='10.1.1.1', drained_at=0.0)
self.assertFalse(node.is_done_draining(now=15, timeout=30))
def test_done_draining_past_timeout_even_if_no_connection_info(self):
"""
If connection information is not provided, and the node has been in
draining past the timeout, :func:`CLBNode.is_done_draining` returns
`True`.
"""
node = CLBNode(node_id='1234', description=self.drain_desc,
address='10.1.1.1', drained_at=0.0)
self.assertTrue(node.is_done_draining(now=30, timeout=15))
def test_matches_only_works_with_NovaServers(self):
"""
:func:`CLBNode.matches` returns false if the server is not an instance
of :class:`NovaServer`.
"""
node = CLBNode(node_id='1234', description=self.desc,
address='10.1.1.1')
self.assertFalse(
node.matches(DummyServer(servicenet_address="10.1.1.1")))
def test_inactive_if_node_is_disabled(self):
"""
If the node is DRAINING, :func:`CLBNode.is_active` returns `True`.
"""
node = CLBNode(node_id='1234',
description=CLBDescription(
lb_id='12345', port=80,
condition=CLBNodeCondition.DISABLED),
address='10.1.1.1', drained_at=0.0, connections=1)
self.assertFalse(node.is_active())
def test_matches_only_if_server_address_matches_node_address(self):
"""
:func:`CLBNode.matches` returns True only if the :class:`NovaServer`
has the same ServiceNet address as the node address
"""
node = CLBNode(node_id='1234', description=self.desc,
address='10.1.1.1')
self.assertFalse(node.matches(
NovaServer(id='1', state=ServerState.ACTIVE, created=0.0,
servicenet_address="10.1.1.2",
image_id='image', flavor_id='flavor')))
self.assertTrue(node.matches(
NovaServer(id='1', state=ServerState.ACTIVE, created=0.0,
servicenet_address="10.1.1.1",
image_id='image', flavor_id='flavor')))
def test_from_node_json_no_weight(self):
"""
A node's JSON representation can be parsed to a :obj:`CLBNode` object
with a `CLBDescription`. When weight is not specified it defaults to 1.
"""
node_json = {'id': 'node1', 'address': '1.2.3.4', 'port': 20,
'condition': 'DRAINING', 'type': 'SECONDARY'}
node = CLBNode.from_node_json(123, node_json)
self.assertEqual(
node,
CLBNode(node_id='node1', address='1.2.3.4',
connections=None, drained_at=0.0,
description=CLBDescription(
lb_id='123', port=20,
weight=1,
condition=CLBNodeCondition.DRAINING,
type=CLBNodeType.SECONDARY)))
