add async python bench

python_async_grpc_bench/Dockerfile

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+FROM python:3-slim
+
+WORKDIR /app
+COPY python_async_grpc_bench /app
+COPY proto /app/proto
+
+RUN python -m pip install grpcio grpcio-tools asyncio
+RUN python -m grpc_tools.protoc -I/app/proto/helloworld --python_out=. --grpc_python_out=. helloworld.proto
+
+ENTRYPOINT [ "python", "/app/server.py" ]

python_async_grpc_bench/server.py

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+# Copyright 2020 gRPC authors.
+#
+# 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.
+"""The Python AsyncIO implementation of the GRPC helloworld.Greeter server."""
+
+import asyncio
+import logging
+
+import grpc
+import helloworld_pb2
+import helloworld_pb2_grpc
+
+
+class Greeter(helloworld_pb2_grpc.GreeterServicer):
+
+    async def SayHello(
+            self, request: helloworld_pb2.HelloRequest,
+            context: grpc.aio.ServicerContext) -> helloworld_pb2.HelloReply:
+        return helloworld_pb2.HelloReply(message=request.name)
+
+
+async def serve() -> None:
+    server = grpc.aio.server()
+    helloworld_pb2_grpc.add_GreeterServicer_to_server(Greeter(), server)
+    listen_addr = '[::]:50051'
+    server.add_insecure_port(listen_addr)
+    logging.info("Starting server on %s", listen_addr)
+    await server.start()
+    await server.wait_for_termination()
+
+
+if __name__ == '__main__':
+    logging.basicConfig(level=logging.INFO)
+    asyncio.run(serve())