add openhack files

apis/user-java/Dockerfile

@@ -0,0 +1,27 @@
+# First stage to build the application
+FROM maven:3.6.3-openjdk-11-slim AS build-env
+ADD ./pom.xml pom.xml
+ADD ./src src/
+RUN mvn clean package
+
+# build runtime image
+FROM openjdk:11-jre-slim
+
+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-java
+#    https://vsupalov.com/docker-build-pass-environment-variables/
+ARG build_version="user-java default"
+
+ENV SQL_USER="YourUserName" \
+SQL_PASSWORD="changeme" \
+SQL_SERVER="changeme.database.windows.net" \
+SQL_DBNAME="mydrivingDB" \
+APP_VERSION=$build_version 
+
+# Add the application's jar to the container
+COPY --from=build-env target/swagger-spring-1.0.0.jar user-java.jar
+
+ENTRYPOINT ["java","-Djava.security.egd=file:/dev/./urandom","-jar","/user-java.jar"]