Not able to pull container Image to local repository during overcloud deployment process.

Issue

• Not able to pull container Image to local repository during overcloud deployment process.

  (undercloud) $ sudo openstack overcloud container image upload \
    --config-file  /home/stack/local_registry_images.yaml \
    --verbose
  START with options: [u'overcloud', u'container', u'image', u'upload', u'--config-file', u'/home/stack/local_registry_images.yaml', u'--verbose']
  command: overcloud container image upload -> tripleoclient.v1.container_image.UploadImage (auth=False)
  Using config files: [u'/home/stack/local_registry_images.yaml']
  imagename: registry.access.redhat.com/rhosp12/openstack-aodh-api:12.0-20171201.1
  UnixHTTPConnectionPool(host='localhost', port=None): Read timed out.
  END return value: 1