Original source code for mkimage-yum.sh is located at: https://github.com/moby/moby/blob/master/contrib/mkimage-yum.sh
- Corrected ability to install multiple packages by adding a for loop.
- Added ability to remove multiple packages.
- Differentiate between environment groups and regular groups.
- Added the /etc/docker-image-info file to record actions taking creating the container.
- Added ability to use local repository. Which by default is enabled. Should disable this if public repositories to be used.
- Added a maintainer option to record name of person who created the image to the layer history and info file.