Py executor grpc TLS server authentication.

Issue-ID: CCSDK-1854
Signed-off-by: Brinda Santh <bs2796@att.com>
Change-Id: I72b3deb7976e7d3e44478c497a46b9b4ac428623
diff --git a/ms/py-executor/client.py b/ms/py-executor/client.py
new file mode 100644
index 0000000..c5bdc43
--- /dev/null
+++ b/ms/py-executor/client.py
@@ -0,0 +1,67 @@
+#  Copyright © 2018-2019 AT&T Intellectual Property.
+#
+#  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.
+#
+#  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 grpc
+from blueprints_grpc.proto.BluePrintProcessing_pb2_grpc import BluePrintProcessingServiceStub
+from blueprints_grpc.proto.BluePrintProcessing_pb2 import ExecutionServiceInput
+from blueprints_grpc.proto.BluePrintCommon_pb2 import CommonHeader, ActionIdentifiers
+
+
+def generate_messages():
+    commonHeader = CommonHeader()
+    commonHeader.requestId = "1234"
+    commonHeader.subRequestId = "1234-1"
+    commonHeader.originatorId = "CDS"
+
+    actionIdentifiers = ActionIdentifiers()
+    actionIdentifiers.blueprintName = "sample-cba"
+    actionIdentifiers.blueprintVersion = "1.0.0"
+    actionIdentifiers.actionName = "SampleScript"
+
+    input = ExecutionServiceInput(commonHeader=commonHeader, actionIdentifiers=actionIdentifiers)
+
+    commonHeader2 = CommonHeader()
+    commonHeader2.requestId = "1235"
+    commonHeader2.subRequestId = "1234-2"
+    commonHeader2.originatorId = "CDS"
+    input2 = ExecutionServiceInput(commonHeader=commonHeader2, actionIdentifiers=actionIdentifiers)
+
+    inputs = [input, input2]
+    for input in inputs:
+        print(input)
+        yield input
+
+
+if __name__ == '__main__':
+    with open('py-executor-chain.pem', 'rb') as f:
+        creds = grpc.ssl_channel_credentials(f.read())
+    channel = grpc.secure_channel('localhost:50052', creds)
+    stub = BluePrintProcessingServiceStub(channel)
+
+    messages = generate_messages()
+    responses = stub.process(messages)
+    for response in responses:
+        print(response)