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[Sean Dague <sean@xxxxxxxxx>]

There is actually an ML thread now about the general architecture issue
here. It's way more complicated than a simple bug and probably a bit
change to keystone auth protocol

** Changed in: nova
       Status: Incomplete => Opinion

** Changed in: nova
   Importance: Undecided => Wishlist

** Changed in: nova
     Assignee: Sridevi Koushik (sridevik) => (unassigned)

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https://bugs.launchpad.net/bugs/1238393

Title:
  Xenapi glance plugin should not try uploading when the auth token in
  invalid

Status in OpenStack Compute (Nova):
  Opinion

Bug description:
  The glance plugin tries to upload for invalid auth token.
  In nova/image/glance, the X-Auth-Token is taken from the context, and passed on to upload. And in the upload_tarball method, the plugin starts to put the headers and upload the image, and only after all the chunks are uploaded it will receive an UnAuthorized response.

  Suggested fix:
  Suggested approach: Have a "HEAD" call made with the X-Auth-Token. If that returns a 401, then abandon the upload process.
  Otherwise, continue with the upload.

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