class PlacementControllerTestCase(unittest.TestCase):
def setUp(self):
self.mock_maas_state = MagicMock()
self.mock_opts = MagicMock()
swopt = PropertyMock(return_value=False)
type(self.mock_opts).enable_swift = swopt
self.pc = PlacementController(self.mock_maas_state,
self.mock_opts)
self.mock_machine = MagicMock(name='machine1')
pmid = PropertyMock(return_value='fake-instance-id-1')
type(self.mock_machine).instance_id = pmid
self.mock_machine_2 = MagicMock(name='machine2')
pmid2 = PropertyMock(return_value='fake-instance-id-2')
type(self.mock_machine_2).instance_id = pmid2
self.mock_machines = [self.mock_machine, self.mock_machine_2]
self.mock_maas_state.machines.return_value = self.mock_machines
def test_machines_for_charm_atype(self):
self.assertEqual(0, len(self.pc.machines_for_charm(CharmNovaCompute)))
self.pc.assign(self.mock_machine, CharmNovaCompute, AssignmentType.LXC)
self.pc.assign(self.mock_machine, CharmNovaCompute, AssignmentType.LXC)
md = self.pc.machines_for_charm(CharmNovaCompute)
self.assertEqual(1, len(md))
self.assertEqual(2, len(md[AssignmentType.LXC]))
def _do_test_simple_assign_type(self, assignment_type):
self.pc.assign(self.mock_machine, CharmNovaCompute, assignment_type)
print("assignments is {}".format(self.pc.assignments))
machines = self.pc.machines_for_charm(CharmNovaCompute)
print('machines for charm is {}'.format(machines))
self.assertEqual(machines,
{assignment_type: [self.mock_machine]})
ma = self.pc.assignments_for_machine(self.mock_machine)
self.assertEqual(ma[assignment_type], [CharmNovaCompute])
def test_simple_assign_bare(self):
self._do_test_simple_assign_type(AssignmentType.BareMetal)
def test_simple_assign_lxc(self):
self._do_test_simple_assign_type(AssignmentType.LXC)
def test_simple_assign_kvm(self):
self._do_test_simple_assign_type(AssignmentType.KVM)
def test_assign_nonmulti(self):
self.pc.assign(self.mock_machine, CharmKeystone, AssignmentType.LXC)
self.assertEqual(self.pc.machines_for_charm(CharmKeystone),
{AssignmentType.LXC: [self.mock_machine]})
self.pc.assign(self.mock_machine, CharmKeystone, AssignmentType.KVM)
self.assertEqual(self.pc.machines_for_charm(CharmKeystone),
{AssignmentType.KVM: [self.mock_machine]})
am = self.pc.assignments_for_machine(self.mock_machine)
self.assertEqual(am[AssignmentType.KVM], [CharmKeystone])
self.assertEqual(am[AssignmentType.LXC], [])
def test_assign_multi(self):
self.pc.assign(self.mock_machine, CharmNovaCompute, AssignmentType.LXC)
self.assertEqual(self.pc.machines_for_charm(CharmNovaCompute),
{AssignmentType.LXC: [self.mock_machine]})
self.pc.assign(self.mock_machine, CharmNovaCompute, AssignmentType.KVM)
self.assertEqual(self.pc.machines_for_charm(CharmNovaCompute),
{AssignmentType.LXC: [self.mock_machine],
AssignmentType.KVM: [self.mock_machine]})
ma = self.pc.assignments_for_machine(self.mock_machine)
self.assertEqual(ma[AssignmentType.LXC], [CharmNovaCompute])
self.assertEqual(ma[AssignmentType.KVM], [CharmNovaCompute])
def test_remove_assignment_multi(self):
self.pc.assign(self.mock_machine, CharmNovaCompute, AssignmentType.LXC)
self.pc.assign(self.mock_machine_2, CharmNovaCompute,
AssignmentType.LXC)
mfc = self.pc.machines_for_charm(CharmNovaCompute)
mfc_lxc = set(mfc[AssignmentType.LXC])
self.assertEqual(mfc_lxc, set(self.mock_machines))
self.pc.clear_assignments(self.mock_machine)
self.assertEqual(self.pc.machines_for_charm(CharmNovaCompute),
{AssignmentType.LXC: [self.mock_machine_2]})
def test_gen_defaults(self):
satisfies_importstring = 'cloudinstall.placement.controller.satisfies'
with patch(satisfies_importstring) as mock_satisfies:
mock_satisfies.return_value = (True, )
defs = self.pc.gen_defaults(charm_classes=[CharmNovaCompute,
CharmKeystone],
maas_machines=[self.mock_machine,
self.mock_machine_2])
m1_as = defs[self.mock_machine.instance_id]
m2_as = defs[self.mock_machine_2.instance_id]
self.assertEqual(m1_as[AssignmentType.BareMetal],
[CharmNovaCompute])
self.assertEqual(m1_as[AssignmentType.LXC], [])
self.assertEqual(m1_as[AssignmentType.KVM], [])
self.assertEqual(m2_as[AssignmentType.BareMetal], [])
self.assertEqual(m2_as[AssignmentType.LXC], [CharmKeystone])
self.assertEqual(m2_as[AssignmentType.KVM], [])
def test_remove_one_assignment_sametype(self):
self.pc.assign(self.mock_machine, CharmNovaCompute, AssignmentType.LXC)
self.pc.assign(self.mock_machine, CharmNovaCompute, AssignmentType.LXC)
self.pc.remove_one_assignment(self.mock_machine, CharmNovaCompute)
md = self.pc.assignments[self.mock_machine.instance_id]
lxcs = md[AssignmentType.LXC]
self.assertEqual(lxcs, [CharmNovaCompute])
self.pc.remove_one_assignment(self.mock_machine, CharmNovaCompute)
md = self.pc.assignments[self.mock_machine.instance_id]
lxcs = md[AssignmentType.LXC]
self.assertEqual(lxcs, [])
def test_remove_one_assignment_othertype(self):
self.pc.assign(self.mock_machine, CharmNovaCompute, AssignmentType.LXC)
self.pc.assign(self.mock_machine, CharmNovaCompute, AssignmentType.KVM)
self.pc.remove_one_assignment(self.mock_machine, CharmNovaCompute)
md = self.pc.assignments[self.mock_machine.instance_id]
lxcs = md[AssignmentType.LXC]
kvms = md[AssignmentType.KVM]
self.assertEqual(1, len(lxcs) + len(kvms))
self.pc.remove_one_assignment(self.mock_machine, CharmNovaCompute)
md = self.pc.assignments[self.mock_machine.instance_id]
lxcs = md[AssignmentType.LXC]
kvms = md[AssignmentType.KVM]
self.assertEqual(0, len(lxcs) + len(kvms))
def test_clear_all(self):
self.pc.assign(self.mock_machine, CharmNovaCompute, AssignmentType.LXC)
self.pc.assign(self.mock_machine_2,
CharmNovaCompute, AssignmentType.KVM)
self.pc.clear_all_assignments()
# check that it's empty:
self.assertEqual(self.pc.assignments, {})
# and that it's still a defaultdict(lambda: defaultdict(list))
mid = self.mock_machine.machine_id
lxcs = self.pc.assignments[mid][AssignmentType.LXC]
self.assertEqual(lxcs, [])
def test_reset_unplaced_none(self):
"""Assign all charms, ensure that unplaced is empty"""
for cc in self.pc.charm_classes():
self.pc.assign(self.mock_machine, cc, AssignmentType.LXC)
self.pc.reset_unplaced()
self.assertEqual(0, len(self.pc.unplaced_services))
def test_reset_unplaced_two(self):
self.pc.assign(self.mock_machine, CharmNovaCompute, AssignmentType.LXC)
self.pc.assign(self.mock_machine_2, CharmKeystone, AssignmentType.KVM)
self.pc.reset_unplaced()
self.assertEqual(len(self.pc.charm_classes()) - 2,
len(self.pc.unplaced_services))
def test_reset_excepting_compute(self):
for cc in self.pc.charm_classes():
if cc.charm_name == 'nova-compute':
continue
self.pc.assign(self.mock_machine, cc, AssignmentType.LXC)
self.pc.reset_unplaced()
self.assertEqual(len(self.pc.unplaced_services), 1)
def test_service_is_required(self):
"Test a sampling of required services and special handling for compute"
self.assertTrue(self.pc.service_is_required(CharmKeystone))
self.assertTrue(self.pc.service_is_required(CharmNovaCompute))
self.assertFalse(self.pc.service_is_required(CharmJujuGui))
def test_one_compute_required(self):
"""after being assigned at least once, novacompute is no longer
considered 'required' (aka required)"""
self.pc.assign(self.mock_machine, CharmNovaCompute, AssignmentType.LXC)
self.assertFalse(self.pc.service_is_required(CharmNovaCompute))
def test_swift_unrequired_then_required(self):
"Swift and swift-proxy are both optional until you add swift"
self.assertFalse(self.pc.service_is_required(CharmSwift))
self.assertFalse(self.pc.service_is_required(CharmSwiftProxy))
self.pc.assign(self.mock_machine, CharmSwift, AssignmentType.LXC)
self.assertTrue(self.pc.service_is_required(CharmSwift))
self.assertTrue(self.pc.service_is_required(CharmSwiftProxy))
def test_swift_proxy_unrequired_then_required(self):
"Swift and swift-proxy are both optional until you add swift-proxy"
self.assertFalse(self.pc.service_is_required(CharmSwift))
self.assertFalse(self.pc.service_is_required(CharmSwiftProxy))
self.pc.assign(self.mock_machine, CharmSwiftProxy, AssignmentType.LXC)
self.assertTrue(self.pc.service_is_required(CharmSwift))
# Only one swift-proxy is required, so now that we've added
# it, it is still not required:
self.assertFalse(self.pc.service_is_required(CharmSwiftProxy))
def test_persistence(self):
self.pc.assign(self.mock_machine, CharmNovaCompute, AssignmentType.LXC)
self.pc.assign(self.mock_machine_2, CharmKeystone, AssignmentType.KVM)
cons1 = PropertyMock(return_value={})
type(self.mock_machine).constraints = cons1
cons2 = PropertyMock(return_value={'cpu': 8})
type(self.mock_machine_2).constraints = cons2
with TemporaryFile(mode='w+', encoding='utf-8') as tempf:
self.pc.save(tempf)
tempf.seek(0)
newpc = PlacementController(self.mock_maas_state, self.mock_opts)
newpc.load(tempf)
self.assertEqual(self.pc.assignments, newpc.assignments)
self.assertEqual(self.pc.machines_used(), newpc.machines_used())
self.assertEqual(self.pc.placed_charm_classes(),
newpc.placed_charm_classes())
m2 = next((m for m in newpc.machines_used()
if m.instance_id == 'fake-instance-id-2'))
self.assertEqual(m2.constraints, {'cpu': 8})
def test_load_machines_single(self):
singlepc = PlacementController(None, self.mock_opts)
fake_assignments = {'fake_iid': {'constraints': {},
'assignments': {'KVM':
['nova-compute']}},
'fake_iid_2': {'constraints': {'cpu': 8},
'assignments':
{'BareMetal': ['nova-compute']}}}
with TemporaryFile(mode='w+', encoding='utf-8') as tempf:
yaml.dump(fake_assignments, tempf)
tempf.seek(0)
singlepc.load(tempf)
self.assertEqual(set([m.instance_id for m in
singlepc.machines_used()]),
set(['fake_iid', 'fake_iid_2']))
m2 = next((m for m in singlepc.machines_used()
if m.instance_id == 'fake_iid_2'))
self.assertEqual(m2.constraints, {'cpu': 8})
def test_load_error_mismatch_charm_name(self):
"""Should safely ignore (and log) a charm name in a placement file
that can't be matched to a loaded charm class."""
singlepc = PlacementController(None, self.mock_opts)
fake_assignments = {'fake_iid': {'constraints': {},
'assignments': {'KVM':
['non-existent']}},
'fake_iid_2': {'constraints': {'cpu': 8},
'assignments':
{'BareMetal': ['nova-compute']}}}
with TemporaryFile(mode='w+', encoding='utf-8') as tempf:
yaml.dump(fake_assignments, tempf)
tempf.seek(0)
singlepc.load(tempf)
self.assertEqual(set([m.instance_id for m in
singlepc.machines_used()]),
set(['fake_iid_2']))
m2 = next((m for m in singlepc.machines_used()
if m.instance_id == 'fake_iid_2'))
self.assertEqual(m2.constraints, {'cpu': 8})
def test_is_assigned(self):
self.assertFalse(self.pc.is_assigned(CharmSwiftProxy,
self.mock_machine))
self.pc.assign(self.mock_machine, CharmSwiftProxy, AssignmentType.LXC)
self.assertTrue(self.pc.is_assigned(CharmSwiftProxy,
self.mock_machine))
def test_double_clear_ok(self):
"""clearing assignments for a machine that isn't assigned (anymore) is
OK and should do nothing
"""
self.pc.assign(self.mock_machine, CharmSwiftProxy, AssignmentType.LXC)
self.pc.clear_assignments(self.mock_machine)
self.pc.clear_assignments(self.mock_machine)
self.pc.clear_assignments(self.mock_machine_2)
