Remove the PowerVM Live Migration Object
Recently the PowerVM live migration object merged into Nova proper via review: https://review.openstack.org/#/c/391284/ This removes the need for the PowerVM driver to have its own live migration object, allowing us to remove a bunch of code and hacks around this. Change-Id: Ic61eefc0086c5b3954a8986d0fb9699d039f25f9
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Drew Thorstensen
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README.rst
25
README.rst
@ -155,31 +155,6 @@ It is the goal of the project to only require minimal additional attributes.
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The deployer may specify additional attributes to fit their configuration.
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Live Migration
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--------------
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In the Mitaka release, the Nova project moved to using conductor-based objects
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for the live migration flow. These objects exist in
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nova/objects/migrate_data.py.
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While the PowerVM driver supports live migration, it can not register its own
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live migration object due to being out of tree. The team is working with the
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nova core team to bring the PowerVM driver in tree. However until that time,
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the use of live migration with the PowerVM driver requires starting a
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PowerVM-specific conductor.
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This conductor does not limit the OpenStack cloud to only supporting PowerVM.
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Rather, it simply allows an existing cloud to include PowerVM support within
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it.
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To use the conductor, install the nova-powervm project on the node running the
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nova conductor. Then start the 'nova-conductor-powervm' process. This will
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support ALL of the hypervisors, including PowerVM.
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To reiterate, this is only needed if you plan to use PowerVM's live migrate
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functionality.
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Developer Impact
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----------------
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@ -1,31 +0,0 @@
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# Copyright 2016 IBM Corp.
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#
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# All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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"""Starter script for PowerVM Nova Conductor service."""
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from nova.cmd import conductor
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from nova_powervm import objects
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def main():
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# The only reason we need this module is to ensure the PowerVM version of
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# the migrate data object is registered. See:
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# http://eavesdrop.openstack.org/irclogs/%23openstack-nova/
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# %23openstack-nova.2016-02-24.log.html
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objects.register_all()
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conductor.main()
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@ -1,19 +0,0 @@
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# Copyright 2016 IBM Corp.
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#
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# All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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def register_all():
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__import__('nova_powervm.objects.migrate_data')
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@ -1,38 +0,0 @@
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# Copyright 2016 IBM Corp.
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#
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# All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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from nova.objects import base as obj_base
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from nova.objects import fields
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from nova.objects import migrate_data
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@obj_base.NovaObjectRegistry.register
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class PowerVMLiveMigrateData(migrate_data.LiveMigrateData):
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# Version 1.0: Initial version
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# Version 1.1: Added the Virtual Ethernet Adapter VLAN mappings.
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VERSION = '1.1'
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fields = {
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'host_mig_data': fields.DictOfNullableStringsField(),
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'dest_ip': fields.StringField(),
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'dest_user_id': fields.StringField(),
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'dest_sys_name': fields.StringField(),
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'public_key': fields.StringField(),
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'dest_proc_compat': fields.StringField(),
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'vol_data': fields.DictOfNullableStringsField(),
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'vea_vlan_mappings': fields.DictOfNullableStringsField(),
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}
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@ -1,36 +0,0 @@
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# Copyright 2016 IBM Corp.
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#
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# All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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#
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import mock
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from nova.cmd import conductor as nova_cond
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from nova import test
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from nova_powervm.cmd import conductor
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from nova_powervm import objects
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class TestConductor(test.TestCase):
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@mock.patch.object(objects, 'register_all')
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@mock.patch.object(nova_cond, 'main')
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def test_conductor(self, mock_main, mock_reg):
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# Call the main conductor
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conductor.main()
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mock_main.assert_called_once_with()
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mock_reg.assert_called_once_with()
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@ -1,28 +0,0 @@
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# Copyright 2016 IBM Corp.
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#
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# All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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from nova import test
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from nova_powervm.objects import migrate_data
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class TestMigrateData(test.TestCase):
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def test_migrate_data(self):
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data = migrate_data.PowerVMLiveMigrateData()
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data.public_key = 'key'
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self.assertEqual(data.public_key, 'key')
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@ -22,10 +22,10 @@ import mock
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from nova import exception
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from nova import objects
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from nova.objects import migrate_data as mig_obj
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from nova import test
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from nova.tests.unit import fake_network
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from nova_powervm.objects import migrate_data as mig_obj
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from nova_powervm.tests.virt import powervm
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from nova_powervm.tests.virt.powervm import fixtures as fx
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from nova_powervm.virt.powervm import live_migration as lpm
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@ -17,6 +17,7 @@
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import abc
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from nova import exception
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from nova.objects import migrate_data as mig_obj
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from oslo_log import log as logging
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from oslo_serialization import jsonutils
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from pypowervm.tasks import management_console as mgmt_task
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@ -27,7 +28,6 @@ from pypowervm import util
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import six
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from nova_powervm import conf as cfg
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from nova_powervm.objects import migrate_data as mig_obj
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from nova_powervm.virt.powervm.i18n import _
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from nova_powervm.virt.powervm.i18n import _LE
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from nova_powervm.virt.powervm.i18n import _LI
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