Shim compute driver in nova.virt namespace

Recent nova commit 8eb03de1eb83a6cd2d4d41804e1b8253f94e5400 removed the mechanism by which nova-powervm was loading its ComputeDriver from out of tree. With Change-Id: I78c0ca85cb6ee2e370214a89a203f6f099748930 we can now add to the nova.virt namespace from the nova-powervm package. This change set restores the ability to load the driver by creating a thin shim into nova.virt.powervm.driver, passing through all public symbols from nova_powervm.virt.powervm.driver. Change-Id: I8ff5154edfcef6fa83686b2ae046512ce7d6d628 Partial-Bug: 1575335
2016-04-26 16:11:53 -05:00 · 2016-04-26 16:11:53 -05:00 · fe9bec248e
parent e223f2a0fe
commit fe9bec248e
8 changed files with 72 additions and 17 deletions
--- a/devstack/settings
+++ b/devstack/settings
@ -10,7 +10,7 @@ INSTALL_PYPOWERVM=$(trueorfalse False INSTALL_PYPOWERVM)
 PVM_ADMIN_GROUP=${PVM_ADMIN_GROUP:-pvm_admin}

 # Nova settings
-PVM_DRIVER=nova_powervm.virt.powervm.driver.PowerVMDriver
+PVM_DRIVER=powervm.driver.PowerVMDriver
 INSTANCE_NAME_TEMPLATE=${INSTANCE_NAME_TEMPLATE:-"%(display_name).13s-%(uuid).8s-pvm"}
 COMPUTE_MONITORS=${COMPUTE_MONITORS:-nova.compute.monitors.all_monitors}
 FORCE_CONFIG_DRIVE=${FORCE_CONFIG_DRIVE:-True}
--- a/nova/init.py
+++ b/nova/init.py
--- a/nova/virt/init.py
+++ b/nova/virt/init.py
@ -0,0 +1,18 @@
+# Copyright 2016 IBM Corp.
+#
+# All Rights Reserved.
+#
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#    under the License.
+
+# Required to play nicely with namespace composition (PEP420).
+__import__('pkg_resources').declare_namespace(__name__)
--- a/nova/virt/powervm/init.py
+++ b/nova/virt/powervm/init.py
--- a/nova/virt/powervm/driver.py
+++ b/nova/virt/powervm/driver.py
@ -0,0 +1,35 @@
+# Copyright 2016 IBM Corp.
+#
+# All Rights Reserved.
+#
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#    under the License.
+
+"""Shim layer for nova_powervm.virt.powervm.driver.PowerVMDriver.
+
+Duplicate all public symbols.  This is necessary for the constants as well as
+the classes - because instances of the classes need to be able to resolve
+references to the constants.
+"""
+import nova_powervm.virt.powervm.driver as real_drv
+
+LOG = real_drv.LOG
+CONF = real_drv.CONF
+VOLUME_DRIVER_MAPPINGS = real_drv.VOLUME_DRIVER_MAPPINGS
+DISK_ADPT_NS = real_drv.DISK_ADPT_NS
+DISK_ADPT_MAPPINGS = real_drv.DISK_ADPT_MAPPINGS
+NVRAM_NS = real_drv.NVRAM_NS
+NVRAM_APIS = real_drv.NVRAM_APIS
+KEEP_NVRAM_STATES = real_drv.KEEP_NVRAM_STATES
+FETCH_NVRAM_STATES = real_drv.FETCH_NVRAM_STATES
+PowerVMDriver = real_drv.PowerVMDriver
+NovaEventHandler = real_drv.NovaEventHandler
--- a/nova_powervm/tests/virt/powervm/fixtures.py
+++ b/nova_powervm/tests/virt/powervm/fixtures.py
@ -20,7 +20,7 @@ from __future__ import absolute_import
 import fixtures
 import mock

-from nova_powervm.virt.powervm import driver
+from nova.virt.powervm import driver

 from nova.virt import fake
 from pypowervm.tests import test_fixtures as pvm_fx
--- a/nova_powervm/tests/virt/powervm/test_driver.py
+++ b/nova_powervm/tests/virt/powervm/test_driver.py
@ -43,9 +43,10 @@ from pypowervm.wrappers import base_partition as pvm_bp
 from pypowervm.wrappers import logical_partition as pvm_lpar
 from pypowervm.wrappers import virtual_io_server as pvm_vios

+from nova.virt.powervm import driver
+
 from nova_powervm.tests.virt import powervm
 from nova_powervm.tests.virt.powervm import fixtures as fx
-from nova_powervm.virt.powervm import driver
 from nova_powervm.virt.powervm import exception as p_exc
 from nova_powervm.virt.powervm import live_migration as lpm
 from nova_powervm.virt.powervm import vm
@ -260,7 +261,7 @@ class TestPowerVMDriver(test.TestCase):
                '.execute')
    @mock.patch('nova_powervm.virt.powervm.tasks.storage.CreateDiskForImg'
                '.execute')
-    @mock.patch('nova_powervm.virt.powervm.driver.PowerVMDriver.'
+    @mock.patch('nova.virt.powervm.driver.PowerVMDriver.'
                '_is_booted_from_volume')
    @mock.patch('nova_powervm.virt.powervm.tasks.network.PlugMgmtVif.execute')
    @mock.patch('nova_powervm.virt.powervm.tasks.network.PlugVifs.execute')
@ -336,7 +337,7 @@ class TestPowerVMDriver(test.TestCase):
    @mock.patch('nova.virt.block_device.DriverVolumeBlockDevice.save')
    @mock.patch('nova_powervm.virt.powervm.tasks.storage.CreateDiskForImg'
                '.execute')
-    @mock.patch('nova_powervm.virt.powervm.driver.PowerVMDriver.'
+    @mock.patch('nova.virt.powervm.driver.PowerVMDriver.'
                '_is_booted_from_volume')
    @mock.patch('nova_powervm.virt.powervm.tasks.network.PlugMgmtVif.execute')
    @mock.patch('nova_powervm.virt.powervm.tasks.network.PlugVifs.execute')
@ -391,7 +392,7 @@ class TestPowerVMDriver(test.TestCase):
    @mock.patch('nova.virt.block_device.DriverVolumeBlockDevice.save')
    @mock.patch('nova_powervm.virt.powervm.tasks.storage.CreateDiskForImg'
                '.execute')
-    @mock.patch('nova_powervm.virt.powervm.driver.PowerVMDriver.'
+    @mock.patch('nova.virt.powervm.driver.PowerVMDriver.'
                '_is_booted_from_volume')
    @mock.patch('nova_powervm.virt.powervm.tasks.network.PlugMgmtVif.execute')
    @mock.patch('nova_powervm.virt.powervm.tasks.network.PlugVifs.execute')
@ -450,7 +451,7 @@ class TestPowerVMDriver(test.TestCase):
    @mock.patch('nova.virt.block_device.DriverVolumeBlockDevice.save')
    @mock.patch('nova_powervm.virt.powervm.tasks.storage.CreateDiskForImg'
                '.execute')
-    @mock.patch('nova_powervm.virt.powervm.driver.PowerVMDriver.'
+    @mock.patch('nova.virt.powervm.driver.PowerVMDriver.'
                '_is_booted_from_volume')
    @mock.patch('nova_powervm.virt.powervm.tasks.network.PlugMgmtVif.execute')
    @mock.patch('nova_powervm.virt.powervm.tasks.network.PlugVifs.execute')
@ -505,7 +506,7 @@ class TestPowerVMDriver(test.TestCase):
                '.execute')
    @mock.patch('nova_powervm.virt.powervm.tasks.storage.FindDisk'
                '.execute')
-    @mock.patch('nova_powervm.virt.powervm.driver.PowerVMDriver.'
+    @mock.patch('nova.virt.powervm.driver.PowerVMDriver.'
                '_is_booted_from_volume')
    @mock.patch('nova_powervm.virt.powervm.tasks.network.PlugMgmtVif.execute')
    @mock.patch('nova_powervm.virt.powervm.tasks.network.PlugVifs.execute')
@ -587,7 +588,7 @@ class TestPowerVMDriver(test.TestCase):
    @mock.patch('nova.virt.block_device.DriverVolumeBlockDevice.save')
    @mock.patch('nova_powervm.virt.powervm.tasks.storage.CreateDiskForImg'
                '.execute')
-    @mock.patch('nova_powervm.virt.powervm.driver.PowerVMDriver.'
+    @mock.patch('nova.virt.powervm.driver.PowerVMDriver.'
                '_is_booted_from_volume')
    @mock.patch('nova_powervm.virt.powervm.tasks.network.PlugMgmtVif.execute')
    @mock.patch('nova_powervm.virt.powervm.tasks.network.PlugVifs.execute')
@ -595,7 +596,7 @@ class TestPowerVMDriver(test.TestCase):
    @mock.patch('nova.objects.flavor.Flavor.get_by_id')
    @mock.patch('nova_powervm.virt.powervm.tasks.vm.UpdateIBMiSettings'
                '.execute')
-    @mock.patch('nova_powervm.virt.powervm.driver.PowerVMDriver.'
+    @mock.patch('nova.virt.powervm.driver.PowerVMDriver.'
                '_get_boot_connectivity_type')
    @mock.patch('pypowervm.tasks.power.power_on')
    def test_spawn_ibmi(
@ -646,7 +647,7 @@ class TestPowerVMDriver(test.TestCase):
                '.execute')
    @mock.patch('nova_powervm.virt.powervm.tasks.storage.CreateDiskForImg'
                '.execute')
-    @mock.patch('nova_powervm.virt.powervm.driver.PowerVMDriver.'
+    @mock.patch('nova.virt.powervm.driver.PowerVMDriver.'
                '_is_booted_from_volume')
    @mock.patch('nova_powervm.virt.powervm.tasks.network.PlugMgmtVif.execute')
    @mock.patch('nova_powervm.virt.powervm.tasks.network.PlugVifs.execute')
@ -654,7 +655,7 @@ class TestPowerVMDriver(test.TestCase):
    @mock.patch('nova.objects.flavor.Flavor.get_by_id')
    @mock.patch('nova_powervm.virt.powervm.tasks.vm.UpdateIBMiSettings'
                '.execute')
-    @mock.patch('nova_powervm.virt.powervm.driver.PowerVMDriver.'
+    @mock.patch('nova.virt.powervm.driver.PowerVMDriver.'
                '_get_boot_connectivity_type')
    @mock.patch('pypowervm.tasks.power.power_on')
    def test_spawn_ibmi_without_bdms(
@ -826,7 +827,7 @@ class TestPowerVMDriver(test.TestCase):
        self.assertEqual(2, flow.add.call_count)

    @mock.patch('nova_powervm.virt.powervm.tasks.network.UnplugVifs.execute')
-    @mock.patch('nova_powervm.virt.powervm.driver.PowerVMDriver.'
+    @mock.patch('nova.virt.powervm.driver.PowerVMDriver.'
                '_is_booted_from_volume')
    @mock.patch('nova_powervm.virt.powervm.vm.dlt_lpar')
    @mock.patch('nova_powervm.virt.powervm.vm.power_off')
@ -1212,7 +1213,7 @@ class TestPowerVMDriver(test.TestCase):
            taskflow_fix.assert_tasks_added(self, expected)
        self.san_lpar_name.assert_called_with('resize_' + self.inst.name)

-    @mock.patch('nova_powervm.virt.powervm.driver.vm')
+    @mock.patch('nova_powervm.virt.powervm.vm')
    @mock.patch('nova_powervm.virt.powervm.tasks.vm.vm')
    @mock.patch('nova_powervm.virt.powervm.tasks.vm.power')
    def test_rescue(self, mock_task_pwr, mock_task_vm, mock_dvr_vm):
@ -1228,7 +1229,7 @@ class TestPowerVMDriver(test.TestCase):
        self.assertTrue(mock_task_pwr.power_on.called)
        self.assertFalse(mock_task_pwr.power_on.call_args[1]['synchronous'])

-    @mock.patch('nova_powervm.virt.powervm.driver.vm')
+    @mock.patch('nova_powervm.virt.powervm.vm')
    @mock.patch('nova_powervm.virt.powervm.tasks.vm.vm')
    @mock.patch('nova_powervm.virt.powervm.tasks.vm.power')
    def test_unrescue(self, mock_task_pwr, mock_task_vm, mock_dvr_vm):
@ -1243,7 +1244,7 @@ class TestPowerVMDriver(test.TestCase):
        self.assertTrue(mock_task_pwr.power_on.called)
        self.assertFalse(mock_task_pwr.power_on.call_args[1]['synchronous'])

-    @mock.patch.object(driver, 'LOG')
+    @mock.patch('nova_powervm.virt.powervm.driver.LOG')
    def test_log_op(self, mock_log):
        """Validates the log_operations."""
        self.drv._log_operation('fake_op', self.inst)
@ -1360,7 +1361,7 @@ class TestPowerVMDriver(test.TestCase):
    def test_get_host_ip_addr(self):
        self.assertEqual(self.drv.get_host_ip_addr(), '127.0.0.1')

-    @mock.patch('nova_powervm.virt.powervm.driver.LOG.warning')
+    @mock.patch('nova.virt.powervm.driver.LOG.warning')
    @mock.patch('nova.compute.utils.get_machine_ips')
    def test_get_host_ip_addr_failure(self, mock_ips, mock_log):
        mock_ips.return_value = ['1.1.1.1']
--- a/setup.cfg
+++ b/setup.cfg
@ -20,6 +20,7 @@ classifier =
 [files]
 packages =
    nova_powervm
+    nova.virt.powervm

 [build_sphinx]
 source-dir = doc/source