Some fixes

Dockerfile

@@ -10,6 +10,7 @@ COPY main.cpp /app/main.cpp
 WORKDIR /app
 RUN g++ -o main main.cpp
 
+
 # run stage
 FROM ubuntu:18.04 AS run
 ENV DEBIAN_FRONTEND=noninteractive TZ=Europe/Berlin
@@ -19,6 +20,7 @@ RUN apt-get update && \
     rm -rf /var/lib/apt/lists/*
 
 COPY --from=build /app/main /app/main
+
 COPY run.sh /app/run.sh
 RUN chmod +x /app/run.sh
 CMD ["/app/run.sh"]