Move volume manager into extensions directory

It's a first step of extracting volume manager
from the core and its refactoring.

Implements blueprint: volume-manager-refactoring

Change-Id: I5ddd5e9027b9f06f4d493e1b70cabf27518406b1

nailgun/nailgun/api/v1/handlers/disks.py

@@ -24,7 +24,7 @@ from nailgun.api.v1.validators.node import NodeDisksValidator
 
 from nailgun import objects
 
-from nailgun.volumes.manager import DisksFormatConvertor
+from nailgun.extensions.volume_manager.manager import DisksFormatConvertor
 
 
 class NodeDisksHandler(BaseHandler):

nailgun/nailgun/db/sqlalchemy/models/node.py

@@ -35,8 +35,8 @@ from nailgun.db.sqlalchemy.models.fields import JSON
 from nailgun.db.sqlalchemy.models.fields import LowercaseString
 from nailgun.db.sqlalchemy.models.network import NetworkBondAssignment
 from nailgun.db.sqlalchemy.models.network import NetworkNICAssignment
+from nailgun.extensions.volume_manager.manager import VolumeManager
 from nailgun.logger import logger
-from nailgun.volumes.manager import VolumeManager
 
 
 class NodeRoles(Base):

nailgun/nailgun/orchestrator/deployment_serializers.py

@@ -28,9 +28,9 @@ import six
 from nailgun import consts
 from nailgun.db import db
 from nailgun.db.sqlalchemy.models import Node
+from nailgun.extensions.volume_manager import manager as volume_manager
 from nailgun import objects
 from nailgun import utils
-from nailgun.volumes import manager as volume_manager
 
 from nailgun.orchestrator.base_serializers import GraphBasedSerializer
 from nailgun.orchestrator.base_serializers import MuranoMetadataSerializerMixin

nailgun/nailgun/test/integration/test_cluster_changes_handler.py

@@ -27,12 +27,12 @@ from nailgun import objects
 
 from nailgun.db.sqlalchemy import models
 from nailgun.db.sqlalchemy.models import NetworkGroup
+from nailgun.extensions.volume_manager import manager
 from nailgun.network.manager import NetworkManager
 from nailgun.settings import settings
 from nailgun.test.base import BaseIntegrationTest
 from nailgun.test.base import fake_tasks
 from nailgun.test.base import reverse
-from nailgun.volumes import manager
 
 
 class TestHandlers(BaseIntegrationTest):

nailgun/nailgun/test/integration/test_orchestrator_serializer.py

@@ -56,10 +56,10 @@ from nailgun.orchestrator.deployment_graph import AstuteGraph
 from nailgun.db.sqlalchemy import models
 from nailgun import objects
 
+from nailgun.extensions.volume_manager import manager
 from nailgun.settings import settings
 from nailgun.test.base import BaseIntegrationTest
 from nailgun.test.base import reverse
-from nailgun.volumes import manager
 
 
 class OrchestratorSerializerTestBase(BaseIntegrationTest):

nailgun/nailgun/test/integration/test_volume_manager.py

@@ -17,9 +17,9 @@
 from mock import patch
 from oslo.serialization import jsonutils
 
+from nailgun.extensions.volume_manager import manager
 from nailgun.test import base
 from nailgun.test.base import reverse
-from nailgun.volumes import manager
 
 
 class TestVolumeManagerHelpers(base.BaseIntegrationTest):

nailgun/nailgun/test/unit/test_node_disks.py

@@ -21,13 +21,13 @@ import string
 from oslo.serialization import jsonutils
 
 from nailgun.errors import errors
+from nailgun.extensions.volume_manager.manager import Disk
+from nailgun.extensions.volume_manager.manager import DisksFormatConvertor
+from nailgun.extensions.volume_manager.manager import only_disks
+from nailgun.extensions.volume_manager.manager import only_vg
 from nailgun.test.base import BaseIntegrationTest
 from nailgun.test.base import fake_tasks
 from nailgun.test.base import reverse
-from nailgun.volumes.manager import Disk
-from nailgun.volumes.manager import DisksFormatConvertor
-from nailgun.volumes.manager import only_disks
-from nailgun.volumes.manager import only_vg
 
 
 class TestNodeDisksHandlers(BaseIntegrationTest):

nailgun/nailgun/test/unit/test_task.py

@@ -19,11 +19,11 @@ from oslo.serialization import jsonutils
 from nailgun import consts
 from nailgun.db.sqlalchemy.models import Task
 from nailgun.errors import errors
+from nailgun.extensions.volume_manager.manager import VolumeManager
 from nailgun import objects
 from nailgun.task.task import CheckBeforeDeploymentTask
 from nailgun.test.base import BaseTestCase
 from nailgun.test.base import reverse
-from nailgun.volumes.manager import VolumeManager
 
 
 class TestHelperUpdateClusterStatus(BaseTestCase):