add openhack files

apis/userprofile/Dockerfile

@@ -0,0 +1,19 @@
+FROM node:12-alpine
+
+COPY . /app
+
+WORKDIR  /app
+
+EXPOSE 8080
+
+# docker build argument
+#    This can be specified during the docker build step by adding " --build-arg build_version=<value>"
+#    App version can be accessed via the uri path /api/version/user
+#    https://vsupalov.com/docker-build-pass-environment-variables/
+ARG build_version="userprofile default"
+ENV APP_VERSION=$build_version 
+
+
+RUN npm install
+
+CMD npm start