def test_constraint_place_engine_constraint_violated(self): # Create constraint place engine image_datastore = "ds1" image_datastores = [{"name": image_datastore, "used_for_vms": True}] option = PlacementOption(1, 1, image_datastores) ds_map = {image_datastore: DatastoreInfo(5, 0)} ds_mgr = self.create_datastore_manager(ds_map, image_datastores) engine = ConstraintDiskPlaceEngine(ds_mgr, option) ds = engine.placeable_datastores() selector = DatastoreSelector.init_datastore_selector(ds_mgr, ds) # Try place disks = [ Disk(disk_id="ds1", capacity_gb=1, constraints=[ ResourceConstraint(ResourceConstraintType.DATASTORE, ["ds2"]) ]), ] place_result = engine.place(DisksPlacement(disks, selector)) # Verify place result assert_that(place_result.result, equal_to(PlaceResultCode.NO_SUCH_RESOURCE))
def test_constraint_place_engine(self): # Create constraint place engine image_datastore = "ds1" image_datastores = [{"name": image_datastore, "used_for_vms": True}] option = PlacementOption(1, 1, image_datastores) ds_map = { image_datastore: DatastoreInfo(10, 0), "ds2": DatastoreInfo(20, 0), "ds3": DatastoreInfo(30, 0) } ds_mgr = self.create_datastore_manager(ds_map, image_datastore) engine = ConstraintDiskPlaceEngine(ds_mgr, option) ds = engine.placeable_datastores() selector = DatastoreSelector.init_datastore_selector(ds_mgr, ds) # Try place disks = [ Disk(disk_id="disk", capacity_gb=5, constraints=[]), Disk(disk_id="disk-in-ds1", capacity_gb=5, constraints=[ ResourceConstraint(ResourceConstraintType.DATASTORE, ["ds1"]) ]), Disk(disk_id="disk-in-ds2", capacity_gb=5, constraints=[ ResourceConstraint(ResourceConstraintType.DATASTORE, ["ds2"]) ]), Disk(disk_id="disk-in-ds3", capacity_gb=5, constraints=[ ResourceConstraint(ResourceConstraintType.DATASTORE, ["ds3"]) ]), Disk(capacity_gb=5, constraints=[]), ] disks_placement = DisksPlacement(disks, selector) place_result = engine.place(disks_placement) # Verify place result assert_that(place_result.result, equal_to(PlaceResultCode.OK)) # Verify placement list and unplaced list disks_placement = place_result.disks_placement assert_that(disks_placement.placement_list, has_length(3)) assert_that(disks_placement.disks, has_length(2)) assert_that([d.resource_id for d in disks_placement.placement_list], contains_inanyorder("disk-in-ds1", "disk-in-ds2", "disk-in-ds3")) for placement in disks_placement.placement_list: assert_that(placement.type, equal_to(AgentResourcePlacement.DISK)) assert_that("disk-in-" + placement.container_id, equal_to(placement.resource_id))
def __init__(self, hypervisor, option): self._logger = logging.getLogger(__name__) self._hypervisor = hypervisor self._option = option self._reserved_vms = {} self._reserved_disks = {} self._diskutil = DiskUtil() self._vm_manager = hypervisor.vm_manager self._image_manager = hypervisor.image_manager self._datastore_manager = hypervisor.datastore_manager self._system = hypervisor.system self._optimal_placement = OptimalPlaceEngine(self._datastore_manager, option) self._best_effort_placement = BestEffortPlaceEngine( self._datastore_manager, option) self._constrainted_placement = ConstraintDiskPlaceEngine( self._datastore_manager, option)