image_spec is deprecated in kubespawner 0.10
@@ -96,7 +96,7 @@ jupyterhub:
if 'image' not in self.user_options:
raise web.HTTPError(400, "image required")
- self.image_spec = self.user_options['image']
+ self.image = self.user_options['image']
return super().start()
c.JupyterHub.spawner_class = BinderSpawner
