Rename util.py --> ceph.py, copy ceph.py from vmdriver

disk.py

@@ -16,7 +16,7 @@ import requests
 import rbd
 from rbd import InvalidArgument, ImageNotFound
 
-from util import CephConnection
+from ceph import CephConnection
 
 logger = logging.getLogger(__name__)
 

storagedriver.py

 from disk import Disk, CephDisk
-from util import CephConnection
+from ceph import CephConnection
 from storagecelery import celery
 import os
 from os import unlink, statvfs, listdir

util.py

-import rados
-import os
-
-
-class CephConnection:
-
-    def __init__(self, pool_name, ceph_config=None):
-
-        self.pool_name = pool_name
-        self.ceph_config = ceph_config
-        self.cluster = None
-        self.ioctx = None
-
-    def __enter__(self):
-        try:
-            if self.ceph_config is None:
-                self.ceph_config = os.getenv("CEPH_CONFIG",
-                                             "/etc/ceph/ceph.conf")
-            self.cluster = rados.Rados(conffile=self.ceph_config)
-            self.cluster.connect(timeout=2)
-            self.ioctx = self.cluster.open_ioctx(self.pool_name)
-        except rados.InterruptedOrTimeoutError as e:
-            raise Exception(e)
-
-        return self
-
-    def __exit__(self, type, value, traceback):
-
-        self.ioctx.close()
-        self.cluster.shutdown()