code: def commit_buildroot(self):
          
          logger.info("committing buildroot")
          self.ensure_is_built()
  
          commit_message = "docker build of '%s' (%s)" % (self.image, self.uri)
          self.buildroot_image_name = ImageName(
              repo="buildroot-%s" % self.image,
              # save the time when image was built
              tag=datetime.datetime.now().strftime('%Y-%m-%d-%H-%M-%S'))
          self.buildroot_image_id = self.dt.commit_container(self.build_container_id, commit_message)
          return self.buildroot_image_id
docs: create image from buildroot
  
          :return: