[Bug 1561056] Re: cinder volume driver's detach() causes TypeError exception on v1 cinder client

[Corey Wright]

** Changed in: nova (Ubuntu)
     Assignee: (unassigned) => Corey Wright (coreywright)

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https://bugs.launchpad.net/bugs/1561056

Title:
  cinder volume driver's detach() causes TypeError exception on v1
  cinder client

Status in nova package in Ubuntu:
  New

Bug description:
  Nova version: git master branch's HEAD (as of today)
  Expected behavior: cinderclient v1 detach() called with accepted argument
  Actual behavior: cinderclient v1 detach() called with too many arguments

  Change I3cdc4992 indiscriminately passes both volume_id and
  attachment_id to the Cinder client regardless of its version even
  though Cinder client v2 supports passing volume_id and optionally
  attachment_id to its volume manager's detach() method, but v1 does
  not, only accepting volume_id.

  Calling Cinder client v1 detach() with both volume_id and
  attachment_id results in "TypeError: detach() takes exactly 2
  arguments (3 given)"

  Full traceback and proposed bug fix to follow.

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