docs: def image_show(self, image_id):
          '''
          Show image details and metadata
          '''
          nt_ks = self.compute_conn
          image = nt_ks.images.get(image_id)
          links = {}
          for link in image.links:
              links[link['rel']] = link['href']
          ret = {
              'name': image.name,
              'id': image.id,
              'status': image.status,
              'progress': image.progress,
              'created': image.created,
              'updated': image.updated,
              'metadata': image.metadata,
              'links': links,
          }
          if hasattr(image, 'minDisk'):
              ret['minDisk'] = image.minDisk
          if hasattr(image, 'minRam'):
              ret['minRam'] = image.minRam
  
          return ret