Add build options and docker, make relay info available through env

Dockerfile

@@ -0,0 +1,17 @@
+# Use a minimal OpenJDK runtime image
+FROM openjdk:17-jdk-slim
+
+# Set the working directory
+WORKDIR /app
+
+# Copy the Uberjar into the image
+COPY target/app.jar .
+COPY resources ./resources
+
+# Expose the application's port
+EXPOSE 8890
+
+# Run the Uberjar
+CMD ["java", "-jar", "app.jar"]
+
+