anchor.diff:  RUN echo "source "/opt/ros/$ROS_DISTRO/setup.bash"" >> /home/ros/.bashrc
   
   # link to root user home directory
  -RUN mkdir -p /home/ros/.gazebo/ && sudo ln -s /data/gazebo/gazebo_models /home/ros/.gazebo/models
  -
  -RUN sudo chmod -R a+rwx /data/gazebo/gazebo_models
  +RUN mkdir -p /home/ros/.gazebo/ && sudo ln -s /ros_data/gazebo/gazebo_models /home/ros/.gazebo/models
   
   CMD ["bash"]
   ENTRYPOINT ["/ros_entrypoint.sh"]
  
positive.code: RUN apt-get install -y qt5-default qtcreator
  
  # download gazebo models
  RUN mkdir -p /data/gazebo && cd /data/gazebo/
  RUN hg clone https://bitbucket.org/osrf/gazebo_models
  RUN chmod -R 777 /data/gazebo && cd -
  
  # link to root user home directory
  RUN mkdir -p /root/.gazebo/ && ln -s /data/gazebo/gazebo_models /root/.gazebo/models
  RUN chmod -R 777 /data/gazebo/gazebo_models
  
  # install ros related components
  RUN apt-get install -y ros-indigo-moveit-full \
  
negative.code: && apt-get autoremove -y \
  && rm -rf /var/lib/apt/lists/*
  
  # set user ros and sudo
  RUN adduser --gecos "ROS User" --home /home/ros --disabled-password ros
  RUN usermod -a -G dialout ros
  