Image build is optimized.

flask_ml_api/Dockerfile

@@ -16,6 +16,18 @@ ENV PATH="/opt/myenv/bin:$PATH"
 WORKDIR /app
 COPY . /app
 
+RUN sudo docker system prune -a -f --volumes
+RUN sudo docker container prune -f
+RUN sudo docker network prune -f
+RUN sudo docker image prune -a -f
+RUN sudo docker builder prune -f
+RUN sudo apt-get clean
+RUN sudo rm -rf /var/lib/apt/lists/*
+RUN sudo rm -rf /tmp/*
+RUN sudo journalctl --vacuum-time=1s
+RUN df -h
+RUN sudo docker builder prune -f
+
 # Setting permissions and cleaning
 RUN chown -R www-data:www-data /app && chmod -R 755 /app