Recreate worker as a .NET Core app

worker/Dockerfile

@@ -1,19 +1,11 @@
-FROM java:openjdk-8-jdk-alpine
+FROM microsoft/dotnet:1.0.0-preview1
 
-RUN MAVEN_VERSION=3.3.3 \
- && cd /usr/share \
- && wget http://archive.apache.org/dist/maven/maven-3/$MAVEN_VERSION/binaries/apache-maven-$MAVEN_VERSION-bin.tar.gz -O - | tar xzf - \
- && mv /usr/share/apache-maven-$MAVEN_VERSION /usr/share/maven \
- && ln -s /usr/share/maven/bin/mvn /usr/bin/mvn
+WORKDIR /app
 
-WORKDIR /code
+ADD src/ /app/src/
 
-ADD pom.xml /code/pom.xml
-RUN ["mvn", "dependency:resolve"]
-RUN ["mvn", "verify"]
+RUN dotnet restore -v minimal src/ \
+    && dotnet publish -c Release -o ./ src/Worker/ \
+    && rm -rf src/ $HOME/.nuget/
 
-# Adding source, compile and package into a fat jar
-ADD src /code/src
-RUN ["mvn", "package"]
-
-CMD ["java", "-jar", "target/worker-jar-with-dependencies.jar"]
+CMD dotnet Worker.dll