Pre-configure image to a ROS Gazebo workspace

This starts with the Ubuntu Xenial base image, and follows the install steps from UUV to include ROS Lunar with Gazebo 9.

Quickstart

Specify your own VNC password for the container:

    clone https://github.com/shrmpy/gazebo.git && cd gazebo && \
    docker build --build-arg VNC_PASSWORD=MyPassGoesHere --network=host --add-host=$HOSTNAME:127.0.0.1 -t gazebo .

Run your container (e.g., with a mounted subdir to save screenshots):

    mkdir Pictures && docker run --network=host --rm -v $(pwd)/Pictures:/home/gopher/.gazebo/pictures gazebo

Connect with VNC viewer, and enter the VNC password from the step above when prompted:

    vncviewer vnc://localhost:5900

Once inside the container, start Gazebo:

    Shift-Alt-Enter                           #(hot-key st term)
    $ bash                                    #(bash shell to dot-source)
    $ roslaunch gazebo_ros empty_world.launch