Fix bug/1715127 kb_start_server fails on import error

https://bugs.launchpad.net/kloudbuster/+bug/1715127
Fix circular dependency between kloudbuster.py and kb_config.py by moving the version string to __init__.py

Change-Id: I973d6fa87653e26f5d0cc1661df7b7014b11a2f6

kloudbuster/__init__.py

@@ -0,0 +1,16 @@
+# Copyright 2017 Cisco Systems, Inc.  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.
+import pbr.version
+
+__version__ = pbr.version.VersionInfo('kloudbuster').version_string_with_vcs()

kloudbuster/kb_config.py

@@ -16,13 +16,13 @@ import os
 import sys
 import yaml
 
+from __init__ import __version__
 from attrdict import AttrDict
 import log as logging
 from oslo_config import cfg
 from pkg_resources import resource_string
 
 import credentials
-import kloudbuster
 
 CONF = cfg.CONF
 LOG = logging.getLogger(__name__)
@@ -114,7 +114,7 @@ class KBConfig(object):
 
         # Use the default image name for Glance
         # defaults to something like "kloudbuster-7.0.0"
-        default_image_name = 'kloudbuster-' + kloudbuster.__version__
+        default_image_name = 'kloudbuster-' + __version__
         if not self.config_scale['image_name']:
             self.config_scale['image_name'] = default_image_name
 

kloudbuster/kloudbuster.py

@@ -13,6 +13,8 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
+from __init__ import __version__
+
 from concurrent.futures import ThreadPoolExecutor
 import datetime
 import json
@@ -43,7 +45,6 @@ import log as logging
 from neutronclient.neutron import client as neutronclient
 from novaclient import client as novaclient
 from oslo_config import cfg
-import pbr.version
 from pkg_resources import resource_filename
 from pkg_resources import resource_string
 from tabulate import tabulate
@@ -51,8 +52,6 @@ import tenant
 
 CONF = cfg.CONF
 LOG = logging.getLogger(__name__)
-__version__ = pbr.version.VersionInfo('kloudbuster').version_string_with_vcs()
-
 
 class KBVMCreationException(Exception):
     pass