versioning: let pbr handle versioning from tags

In OpenStack projects, where pbr is used, this tool generates the
versioning information from the tags. This patch moves us to use it
too.

Change-Id: Idf617e65a5970bb4e4a88a6496f06bf4be47ab5b
Signed-off-by: Antoni Segura Puimedon <antonisp@celebdor.com>

kuryr_libnetwork/__init__.py

@@ -9,8 +9,13 @@
 # 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
 
 from kuryr_libnetwork import utils
 
 
+__version__ = pbr.version.VersionInfo(
+    'kuryr-libnetwork').version_string()
+
+
 app = utils.make_json_app(__name__)

kuryr_libnetwork/common/config.py

@@ -18,9 +18,9 @@ import os
 
 from oslo_config import cfg
 from oslo_log import log
+import pbr.version
 
 from kuryr.lib._i18n import _
-from kuryr.lib import version
 
 
 core_opts = [
@@ -112,5 +112,8 @@ log.register_options(CONF)
 
 
 def init(args, **kwargs):
-    cfg.CONF(args=args, project='kuryr',
-             version=version.version_info.release_string(), **kwargs)
+    cfg.CONF(
+        args=args,
+        project='kuryr',
+        version=pbr.version.VersionInfo('kuryr-libnetwork').version_string(),
+        **kwargs)

setup.cfg

@@ -1,6 +1,5 @@
 [metadata]
 name = kuryr-libnetwork
-version = 0.1.0
 summary = Docker libnetwork driver for OpenStack Neutron
 description-file =
     README.rst