[VOL-2763] - Create Make- and Dockerfile for Golang OpenONU Adapter
- note: location of build-env-variables in ldflags of docker build (test.internal) is a matter of change, when code is avaiable in repo voltha-openonu-adapter-go
- VERSION-file added
- added a single go file with a fake test

Change-Id: I1c4e0d1a3a37db409fd0fb35ba1eae3b342295a2
diff --git a/docker/Dockerfile.openonu b/docker/Dockerfile.openonu
new file mode 100644
index 0000000..5006d3a
--- /dev/null
+++ b/docker/Dockerfile.openonu
@@ -0,0 +1,73 @@
+# Copyright 2016 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.
+
+# -------------
+# Build stage
+
+FROM golang:1.13.8-alpine3.11 AS build-env
+
+# Install required packages
+RUN apk add --no-cache wget=1.20.3-r0 git=2.20.2-r0 make=4.2.1-r2 build-base=0.5-r1 protobuf=3.6.1-r1 protobuf-dev=3.6.1-r1
+
+# Prepare directory structure
+WORKDIR /go/src
+COPY . .
+
+ARG org_label_schema_version=unknown
+ARG org_label_schema_vcs_url=unknown
+ARG org_label_schema_vcs_ref=unknown
+ARG org_label_schema_build_date=unknown
+ARG org_opencord_vcs_commit_date=unknown
+ARG org_opencord_vcs_dirty=unknown
+
+# Build openonugo
+SHELL ["/bin/ash", "-o", "pipefail", "-c"]
+ENV GO111MODULE=on
+RUN go build -mod=vendor -o /go/bin/openonugo \
+	-ldflags \
+	"-X test.internal/openadapter/config/version.version=$org_label_schema_version \
+	 -X test.internal/openadapter/config/version.vcsRef=$org_label_schema_vcs_ref  \
+	 -X test.internal/openadapter/config/version.vcsDirty=$org_opencord_vcs_dirty \
+	 -X test.internal/openadapter/config/version.goVersion=$(go version 2>&1 | sed -E  's/.*go([0-9]+\.[0-9]+\.[0-9]+).*/\1/g') \
+	 -X test.internal/openadapter/config/version.os=$(go env GOHOSTOS) \
+	 -X test.internal/openadapter/config/version.arch=$(go env GOHOSTARCH) \
+	 -X test.internal/openadapter/config/version.buildTime=$org_label_schema_build_date"
+
+# -------------
+# Image creation stage
+
+FROM alpine:3.11.3
+
+# Set the working directory
+WORKDIR /app
+
+# Copy required files
+COPY --from=build-env /go/bin/openonugo /app/
+
+# Label image
+ARG org_label_schema_version=unknown
+ARG org_label_schema_vcs_url=unknown
+ARG org_label_schema_vcs_ref=unknown
+ARG org_label_schema_build_date=unknown
+ARG org_opencord_vcs_commit_date=unknown
+ARG org_opencord_vcs_dirty=unknown
+
+LABEL org.label-schema.schema-version=1.0 \
+      org.label-schema.name=voltha-openonu-adapter-go \
+      org.label-schema.version=$org_label_schema_version \
+      org.label-schema.vcs-url=$org_label_schema_vcs_url \
+      org.label-schema.vcs-ref=$org_label_schema_vcs_ref \
+      org.label-schema.build-date=$org_label_schema_build_date \
+      org.opencord.vcs-commit-date=$org_opencord_vcs_commit_date \
+      org.opencord.vcs-dirty=$org_opencord_vcs_dirty