# process input. originally, an optional positional parameter is used to designate a component.
# A flagged parameter has been added to optionally indicate docker pull registry. Ideally, options
# would be flagged but we're avoiding ripple effect of changing original usage
# process input. originally, an optional positional parameter is used to designate a component.
# A flagged parameter has been added to optionally indicate docker pull registry. Ideally, options
# would be flagged but we're avoiding ripple effect of changing original usage