338 lines
12 KiB
Python
Executable File
338 lines
12 KiB
Python
Executable File
#
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# Copyright (c) 2020 Wind River Systems, Inc.
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#
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# SPDX-License-Identifier: Apache-2.0
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#
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import fixtures
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import pprint
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import uuid
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from nfv_vim import host_fsm
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from nfv_vim import nfvi
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from nfv_vim import objects
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from nfv_vim.strategy._strategy import strategy_rebuild_from_dict
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from nfv_vim.tables._host_aggregate_table import HostAggregateTable
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from nfv_vim.tables._host_group_table import HostGroupTable
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from nfv_vim.tables._host_table import HostTable
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from nfv_vim.tables._instance_group_table import InstanceGroupTable
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from nfv_vim.tables._instance_table import InstanceTable
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from nfv_vim.tables._table import Table
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from . import testcase # noqa: H304
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from . import utils # noqa: H304
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from nfv_vim.objects import HOST_PERSONALITY
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DEBUG_PRINTING = False
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def validate_strategy_persists(strategy):
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"""
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Validate that the strategy can be converted to a dict and back without any
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loss of data.
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Note: This is not foolproof - it won't catch cases where the an object
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attribute was missed from both the as_dict and from_dict methods.
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"""
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strategy_dict = strategy.as_dict()
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new_strategy = strategy_rebuild_from_dict(strategy_dict)
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if DEBUG_PRINTING:
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if strategy.as_dict() != new_strategy.as_dict():
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print("==================== Strategy ====================")
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pprint.pprint(strategy.as_dict())
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print("============== Converted Strategy ================")
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pprint.pprint(new_strategy.as_dict())
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assert strategy.as_dict() == new_strategy.as_dict(), \
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"Strategy changed when converting to/from dict"
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def validate_phase(phase, expected_results):
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"""
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Validate that the phase matches everything contained in expected_results
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Note: there is probably a super generic, pythonic way to do this, but this
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is good enough (tm).
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"""
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if DEBUG_PRINTING:
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print("====================== Phase Results ========================")
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pprint.pprint(phase)
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print("===================== Expected Results ======================")
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pprint.pprint(expected_results)
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for key in expected_results:
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if key == 'stages':
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stage_number = 0
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for stage in expected_results[key]:
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apply_stage = phase[key][stage_number]
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for stages_key in stage:
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if stages_key == 'steps':
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step_number = 0
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for step in stage[stages_key]:
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apply_step = apply_stage[stages_key][step_number]
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for step_key in step:
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assert apply_step[step_key] == step[step_key], \
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"for [%s][%d][%s][%d][%s] found: %s but expected: %s" % \
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(key, stage_number, stages_key,
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step_number, step_key,
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apply_step[step_key], step[step_key])
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step_number += 1
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else:
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assert apply_stage[stages_key] == stage[stages_key], \
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"for [%s][%d][%s] found: %s but expected: %s" % \
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(key, stage_number, stages_key,
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apply_stage[stages_key], stage[stages_key])
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stage_number += 1
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else:
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assert phase[key] == expected_results[key], \
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"for [%s] found: %s but expected: %s" % \
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(key, phase[key], expected_results[key])
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def fake_save(a):
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pass
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def fake_timer(a, b, c, d):
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return 1234
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def fake_host_name():
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return 'controller-0'
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def fake_host_name_controller_1():
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return 'controller-1'
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def fake_host_name_controller_0():
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return 'controller-0'
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def fake_callback():
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return
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def fake_event_issue(a, b, c, d):
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"""
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Mock out the _event_issue function because it is being called when instance
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objects are created. It ends up trying to communicate with another thread
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(that doesn't exist) and this eventually leads to nosetests hanging if
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enough events are issued.
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"""
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return None
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def fake_nfvi_compute_plugin_disabled():
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return False
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class SwUpdateStrategyTestCase(testcase.NFVTestCase):
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def setUp(self):
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"""
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Setup for testing.
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"""
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super(SwUpdateStrategyTestCase, self).setUp()
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self._tenant_table = Table()
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self._instance_type_table = Table()
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self._instance_table = InstanceTable()
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self._instance_group_table = InstanceGroupTable()
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self._host_table = HostTable()
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self._host_group_table = HostGroupTable()
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self._host_aggregate_table = HostAggregateTable()
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# Don't attempt to write to the database while unit testing
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self._tenant_table.persist = False
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self._instance_type_table.persist = False
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self._instance_table.persist = False
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self._instance_group_table.persist = False
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self._host_table.persist = False
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self._host_group_table.persist = False
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self._host_aggregate_table.persist = False
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self.useFixture(fixtures.MonkeyPatch('nfv_vim.tables._tenant_table._tenant_table',
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self._tenant_table))
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self.useFixture(fixtures.MonkeyPatch('nfv_vim.tables._host_table._host_table',
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self._host_table))
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self.useFixture(fixtures.MonkeyPatch('nfv_vim.tables._instance_group_table._instance_group_table',
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self._instance_group_table))
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self.useFixture(fixtures.MonkeyPatch('nfv_vim.tables._host_group_table._host_group_table',
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self._host_group_table))
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self.useFixture(fixtures.MonkeyPatch('nfv_vim.tables._host_aggregate_table._host_aggregate_table',
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self._host_aggregate_table))
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self.useFixture(fixtures.MonkeyPatch('nfv_vim.tables._instance_table._instance_table',
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self._instance_table))
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self.useFixture(fixtures.MonkeyPatch('nfv_vim.tables._instance_type_table._instance_type_table',
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self._instance_type_table))
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instance_type_uuid = str(uuid.uuid4())
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instance_type = objects.InstanceType(instance_type_uuid, 'small')
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instance_type.update_details(vcpus=1,
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mem_mb=64,
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disk_gb=1,
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ephemeral_gb=0,
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swap_gb=0,
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guest_services=None,
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auto_recovery=True,
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live_migration_timeout=800,
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live_migration_max_downtime=500)
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self._instance_type_table[instance_type_uuid] = instance_type
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def tearDown(self):
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"""
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Cleanup testing setup.
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"""
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super(SwUpdateStrategyTestCase, self).tearDown()
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self._tenant_table.clear()
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self._instance_type_table.clear()
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self._instance_table.clear()
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self._instance_group_table.clear()
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self._host_table.clear()
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self._host_group_table.clear()
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self._host_aggregate_table.clear()
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def create_instance(self, instance_type_name, instance_name, host_name,
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admin_state=nfvi.objects.v1.INSTANCE_ADMIN_STATE.UNLOCKED):
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"""
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Create an instance
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"""
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tenant_uuid = str(uuid.uuid4())
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image_uuid = str(uuid.uuid4())
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tenant = objects.Tenant(tenant_uuid, "%s_name" % tenant_uuid, '', True)
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self._tenant_table[tenant_uuid] = tenant
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for instance_type in self._instance_type_table.values():
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if instance_type.name == instance_type_name:
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instance_uuid = str(uuid.uuid4())
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nfvi_instance = nfvi.objects.v1.Instance(
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instance_uuid, instance_name, tenant_uuid,
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admin_state=admin_state,
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oper_state=nfvi.objects.v1.INSTANCE_OPER_STATE.ENABLED,
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avail_status=list(),
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action=nfvi.objects.v1.INSTANCE_ACTION.NONE,
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host_name=host_name,
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instance_type=utils.instance_type_to_flavor_dict(
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instance_type),
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image_uuid=image_uuid)
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instance = objects.Instance(nfvi_instance)
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self._instance_table[instance.uuid] = instance
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return
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assert 0, "Unknown instance_type_name: %s" % instance_type_name
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def create_instance_group(self, name, members, policies):
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"""
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Create an instance group
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"""
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member_uuids = []
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for instance_uuid, instance in self._instance_table.items():
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if instance.name in members:
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member_uuids.append(instance_uuid)
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nfvi_instance_group = nfvi.objects.v1.InstanceGroup(
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uuid=str(uuid.uuid4()),
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name=name,
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member_uuids=member_uuids,
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policies=policies
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)
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instance_group = objects.InstanceGroup(nfvi_instance_group)
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self._instance_group_table[instance_group.uuid] = instance_group
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def create_host(self,
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host_name,
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aio=False,
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admin_state=nfvi.objects.v1.HOST_ADMIN_STATE.UNLOCKED,
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oper_state=nfvi.objects.v1.HOST_OPER_STATE.ENABLED,
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avail_status=nfvi.objects.v1.HOST_AVAIL_STATUS.AVAILABLE,
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software_load='12.01',
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target_load='12.01',
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openstack_installed=True):
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"""
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Create a host
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"""
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personality = ''
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openstack_control = False
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openstack_compute = False
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if host_name.startswith('controller'):
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personality = HOST_PERSONALITY.CONTROLLER
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if aio:
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personality = personality + ',' + HOST_PERSONALITY.WORKER
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if openstack_installed:
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openstack_control = True
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if aio:
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openstack_compute = True
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elif host_name.startswith('compute'):
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personality = HOST_PERSONALITY.WORKER
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if openstack_installed:
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openstack_compute = True
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elif host_name.startswith('storage'):
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personality = HOST_PERSONALITY.STORAGE
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else:
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assert 0, "Invalid host_name: %s" % host_name
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nfvi_host = nfvi.objects.v1.Host(
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uuid=str(uuid.uuid4()),
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name=host_name,
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personality=personality,
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admin_state=admin_state,
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oper_state=oper_state,
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avail_status=avail_status,
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action=nfvi.objects.v1.HOST_ACTION.NONE,
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software_load=software_load,
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target_load=target_load,
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openstack_compute=openstack_compute,
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openstack_control=openstack_control,
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remote_storage=False,
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uptime='1000'
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)
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if admin_state == nfvi.objects.v1.HOST_ADMIN_STATE.UNLOCKED:
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host = objects.Host(nfvi_host,
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initial_state=host_fsm.HOST_STATE.ENABLED)
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else:
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host = objects.Host(nfvi_host,
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initial_state=host_fsm.HOST_STATE.DISABLED)
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self._host_table[host.name] = host
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def create_host_group(self, name, members, policies):
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"""
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Create a host group
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"""
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member_uuids = []
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for instance_uuid, instance in self._instance_table.items():
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if instance.name in members:
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member_uuids.append(instance_uuid)
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nfvi_host_group = nfvi.objects.v1.HostGroup(
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name=name,
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member_names=members,
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policies=policies
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)
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host_group = objects.HostGroup(nfvi_host_group)
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self._host_group_table[host_group.name] = host_group
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def create_host_aggregate(self, name, host_names):
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"""
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Create a host aggregate
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"""
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nfvi_host_aggregate = nfvi.objects.v1.HostAggregate(
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name=name,
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host_names=host_names,
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availability_zone=''
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)
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host_aggregate = objects.HostAggregate(nfvi_host_aggregate)
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self._host_aggregate_table[host_aggregate.name] = host_aggregate
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