def normalize_version(version)
      if version =~ /^\d+$/
        "#{@service}:#{version}"
      elsif version.include?(':') && !version.include?(":ufo-")
        version
      else # assume git sha
        # tongueroo/demo-ufo:ufo-2018-06-21T15-03-52-ac60240
        from_git_sha(version)
      end
    end
def normalize_version(version)
      if version =~ /^\d+$/
        "#{@service}:#{version}"
      elsif version.include?(':') && !version.include?(":ufo-")
        version
      else # assume git sha
        # tongueroo/demo-ufo:ufo-2018-06-21T15-03-52-ac60240
        from_git_sha(version)
      end
    end
normalizes the task definition
 if user passes in:
    1 => demo-web:1
    demo-web:1 => demo-web:1