VOL-1451 Initial checkin of openonu build

Produced docker container capable of building and running
openonu/brcm_openonci_onu.  Copied over current onu code
and resolved all imports by copying into the local source tree.

Change-Id: Ib9785d37afc65b7d32ecf74aee2456352626e2b6
diff --git a/python/docker/Dockerfile.protos b/python/docker/Dockerfile.protos
new file mode 100644
index 0000000..db70d13
--- /dev/null
+++ b/python/docker/Dockerfile.protos
@@ -0,0 +1,36 @@
+# Copyright 2018 the original author or 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.
+
+ARG REGISTRY=
+ARG REPOSITORY=
+ARG TAG=latest
+
+FROM ${REGISTRY}${REPOSITORY}voltha-protoc:${TAG} as builder
+MAINTAINER Voltha Community <info@opennetworking.org>
+
+COPY protos/third_party/google/api/*.proto /protos/google/api/
+COPY docker/config/Makefile.protos /protos/google/api/Makefile.protos
+COPY protos/*.proto /protos/voltha/
+COPY docker/config/Makefile.protos /protos/voltha/Makefile.protos
+
+WORKDIR /protos
+RUN make -f google/api/Makefile.protos google_api
+RUN touch /protos/google/__init__.py /protos/google/api/__init__.py
+
+WORKDIR /protos/voltha
+RUN make -f Makefile.protos build
+
+# Copy the files to a scrach based container to minimize its size
+FROM ${REGISTRY}scratch
+COPY --from=builder /protos/ /protos/