did some more improvements on the docker/rust things

Dockerfile

@@ -31,6 +31,10 @@ RUN npm run build
 # Create and set permissions for the docker volume mount point
 RUN mkdir -p /app/docker && chmod 777 /app/docker
 
+
+# Set environment variable to indicate we're running in Docker
+ENV DOCKER_CONTAINER=true
+
 VOLUME ["/app/docker"]
 
 EXPOSE 3000