[CORD-2809] Synchronizer OLTDevice in VOLTHA

Change-Id: Ie4f2e10efd035e3fcb6066e5f7bd859179fa2fea
diff --git a/xos/synchronizer/pull_steps/pull_olts.py b/xos/synchronizer/pull_steps/pull_olts.py
new file mode 100644
index 0000000..3ab76e0
--- /dev/null
+++ b/xos/synchronizer/pull_steps/pull_olts.py
@@ -0,0 +1,28 @@
+# Copyright 2017-present Open Networking Foundation
+#
+# 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.
+
+from synchronizers.new_base.pullstep import PullStep
+from synchronizers.new_base.modelaccessor import OLTDevice
+
+from xosconfig import Config
+from multistructlog import create_logger
+
+log = create_logger(Config().get('logging'))
+
+class OLTDevicePullStep(PullStep):
+    def __init__(self):
+        super(OLTDevicePullStep, self).__init__(observed_model=OLTDevice)
+
+    def pull_records(self):
+        log.info("pulling OLT devices from VOLTHA")