Artom Lifshitz 32dbd2f585 Avoid error 500 on shelve task_state race ... When shelving a server and saving its new SHELVING task state, we expect the current task state to be None and do not handle any UnexpectedTaskStateError exceptions that the database layer may throw at us. In those cases, we return an error 500 to the user, when in actuality an error 409 conflict would be more appropriate. This patch makes the API layer handle UnexpectedTaskStateError exceptions and return a 409 to the user. Closes-bug: 1850694 Change-Id: Ie0b421cd5d3a5781c1dd09fab4ed013ece0f939d (cherry picked from commit a423d8b277)		2019-11-01 19:50:26 -04:00
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ec2	ec2: Remove unused functions from 'ec2utils'	2019-07-10 16:15:19 +01:00
metadata	hacking: Resolve W503 (line break occurred before a binary operator)	2019-06-24 14:24:06 -05:00
openstack	Avoid error 500 on shelve task_state race	2019-11-01 19:50:26 -04:00
validation	Multiple API cleanup changes	2019-08-12 08:52:38 -05:00
__init__.py	Remove unused copyright from nova.api.__init__	2014-01-10 16:24:50 +08:00
auth.py	Refactor WSGI apps and utils to limit imports	2018-03-06 22:05:12 +00:00
compute_req_id.py	Migrate to oslo request_id middleware - mv 2.46	2017-05-27 10:11:44 +00:00
manager.py	Only setup iptables for metadata if using nova-net	2017-07-20 00:00:22 +00:00
wsgi.py	Refactor WSGI apps and utils to limit imports	2018-03-06 22:05:12 +00:00