def test_place_cpu_constraint(self):
disk1 = Disk(new_id(), DISK_FLAVOR, True, True, 1024)
disk2 = Disk(new_id(), DISK_FLAVOR, True, True, 1024)
vm = Vm(new_id(), self._vm_flavor_gb(memory_gb=1, cpu=100),
VmPowerState.STARTED, None)
vm.disks = [disk1, disk2]
manager = PMBuilder(cpu_overcommit=1).build()
manager.place(vm, None)
def test_place_storage_constraint(self):
disk = Disk(new_id(), DISK_FLAVOR, True, True, 1024)
vm = Vm(new_id(), VM_FLAVOR, State.STARTED, None)
vm.disks = [disk]
ds_map = {"datastore_id_1": (DatastoreInfo(8 * 1024, 7 * 1024),
set([]))}
manager = PMBuilder(ds_map=ds_map).build()
manager.place(vm, None)
def test_place_storage_constraint(self):
disk = Disk(new_id(), DISK_FLAVOR, True, True, 1024)
vm = Vm(new_id(), VM_FLAVOR, VmPowerState.STARTED, None)
vm.disks = [disk]
ds_map = {
"datastore_id_1": (DatastoreInfo(8 * 1024, 7 * 1024), set([]))
}
manager = PMBuilder(ds_map=ds_map).build()
manager.place(vm, None)
def test_place_cpu_constraint(self):
disk1 = Disk(new_id(), DISK_FLAVOR, True, True, 1024)
disk2 = Disk(new_id(), DISK_FLAVOR, True, True, 1024)
vm = Vm(new_id(),
self._vm_flavor_gb(memory_gb=1, cpu=100),
State.STARTED, None)
vm.disks = [disk1, disk2]
manager = PMBuilder(cpu_overcommit=1).build()
manager.place(vm, None)
def test_place_memory_constraint(self):
# Try to deploy a VM with 64GB memory on a system with 64GB memory
# will fail because the memory score is 0.
# Actually if memory score is less than 5 (1 - max_usage) will be
# rejected. In this case, 60GB is also rejected.
disk1 = Disk(new_id(), DISK_FLAVOR, True, True, 1024)
disk2 = Disk(new_id(), DISK_FLAVOR, True, True, 1024)
vm = Vm(new_id(), self._vm_flavor_gb(64), VmPowerState.STARTED, None)
vm.disks = [disk1, disk2]
manager = PMBuilder().build()
manager.place(vm, None)
def test_place_memory_constraint(self):
# Try to deploy a VM with 64GB memory on a system with 64GB memory
# will fail because the memory score is 0.
# Actually if memory score is less than 5 (1 - max_usage) will be
# rejected. In this case, 60GB is also rejected.
disk1 = Disk(new_id(), DISK_FLAVOR, True, True, 1024)
disk2 = Disk(new_id(), DISK_FLAVOR, True, True, 1024)
vm = Vm(new_id(), self._vm_flavor_gb(64), State.STARTED, None)
vm.disks = [disk1, disk2]
manager = PMBuilder().build()
manager.place(vm, None)
def test_place_new_with_reservations(self, disk1_capacity, disk2_capacity,
overcommit, expected):
disk1 = Disk(new_id(), DISK_FLAVOR, True, True, disk1_capacity)
disk2 = Disk(new_id(), DISK_FLAVOR, True, True, disk2_capacity)
vm = Vm(new_id(), VM_FLAVOR, VmPowerState.STOPPED, None)
vm.disks = [disk1, disk2]
manager = PMBuilder(mem_overcommit=overcommit).build()
# Disable freespace based admission control.
manager.FREESPACE_THRESHOLD = 0
manager.reserve(vm, None)
score, placement_list = manager.place(vm, None)
assert_that(score, is_(AgentPlacementScore(*expected)))
def test_place_new_with_reservations(self, disk1_capacity, disk2_capacity,
overcommit, expected):
disk1 = Disk(new_id(), DISK_FLAVOR, True, True, disk1_capacity)
disk2 = Disk(new_id(), DISK_FLAVOR, True, True, disk2_capacity)
vm = Vm(new_id(), VM_FLAVOR, State.STOPPED, None)
vm.disks = [disk1, disk2]
manager = PMBuilder(mem_overcommit=overcommit).build()
# Disable freespace based admission control.
manager.FREESPACE_THRESHOLD = 0
manager.reserve(vm, None)
score, placement_list = manager.place(vm, None)
assert_that(score, is_(AgentPlacementScore(*expected)))
def test_place_new(self, disk_capacity_1, disk_capacity_2, overcommit,
expected):
created_disk1 = Disk(new_id(), DISK_FLAVOR, True, True,
disk_capacity_1)
created_disk2 = Disk(new_id(), DISK_FLAVOR, True, True,
disk_capacity_2)
vm = Vm(new_id(), VM_FLAVOR, State.STOPPED, None)
vm.disks = [created_disk1, created_disk2]
manager = PMBuilder(mem_overcommit=overcommit).build()
# Disable freespace based admission control.
manager.FREESPACE_THRESHOLD = 0
score, placement_list = manager.place(vm, None)
assert_that(score, is_(AgentPlacementScore(*expected)))
def test_place_new(self, disk_capacity_1, disk_capacity_2, overcommit,
expected):
created_disk1 = Disk(new_id(), DISK_FLAVOR, True, True,
disk_capacity_1)
created_disk2 = Disk(new_id(), DISK_FLAVOR, True, True,
disk_capacity_2)
vm = Vm(new_id(), VM_FLAVOR, VmPowerState.STOPPED, None)
vm.disks = [created_disk1, created_disk2]
manager = PMBuilder(mem_overcommit=overcommit).build()
# Disable freespace based admission control.
manager.FREESPACE_THRESHOLD = 0
score, placement_list = manager.place(vm, None)
assert_that(score, is_(AgentPlacementScore(*expected)))
def _get_resource_from_vmcache(self, vmcache):
"""Translate to vm resource from vm cache
"""
vm_resource = Vm(vmcache.name)
vm_resource.flavor = Flavor("default") # TODO
vm_resource.disks = []
for disk in vmcache.disks:
disk_id = os.path.splitext(os.path.basename(disk))[0]
datastore_name = self._get_datastore_name_from_ds_path(disk)
datastore_uuid = self._get_datastore_uuid(datastore_name)
if datastore_uuid:
disk_resource = Disk(disk_id, Flavor("default"), False, False,
-1, None, datastore_uuid)
vm_resource.disks.append(disk_resource)
vm_resource.state = vmcache.power_state
datastore_name = self._get_datastore_name_from_ds_path(vmcache.path)
vm_resource.datastore = self._get_datastore_uuid(datastore_name)
return vm_resource
def _get_resource_from_vmcache(self, vmcache):
"""Translate to vm resource from vm cache
"""
vm_resource = Vm(vmcache.name)
vm_resource.flavor = Flavor("default") # TODO
vm_resource.disks = []
for disk in vmcache.disks:
disk_id = os.path.splitext(os.path.basename(disk))[0]
datastore_name = self._get_datastore_name_from_ds_path(disk)
datastore_uuid = self._get_datastore_uuid(datastore_name)
if datastore_uuid:
disk_resource = Disk(disk_id, Flavor("default"), False,
False, -1, None, datastore_uuid)
vm_resource.disks.append(disk_resource)
vm_resource.state = vmcache.power_state
datastore_name = self._get_datastore_name_from_ds_path(vmcache.path)
vm_resource.datastore = self._get_datastore_uuid(datastore_name)
return vm_resource
