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[Bug 1555187] Re: keystone fails to start in kilo due to pysaml2 4.0.4 release

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g-r cap is here for kilo: https://review.openstack.org/#/c/290613/

** Changed in: keystone/kilo
     Assignee: (unassigned) => Matt Riedemann (mriedem)

** Changed in: keystone/kilo
   Importance: Undecided => High

** Changed in: keystone
       Status: Triaged => Invalid

** Changed in: keystone/kilo
       Status: New => In Progress

** Tags added: pysaml

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https://bugs.launchpad.net/bugs/1555187

Title:
  keystone fails to start in kilo due to pysaml2 4.0.4 release

Status in OpenStack Identity (keystone):
  Invalid
Status in OpenStack Identity (keystone) kilo series:
  In Progress

Bug description:
  http://logs.openstack.org/66/278466/8/check/gate-heat-dsvm-functional-
  orig-mysql-
  lbaasv1/26b4f7d/logs/apache/keystone.txt.gz#_2016-03-09_14_12_14_814037

  2016-03-09 14:12:14.807391 mod_wsgi (pid=27348): Exception occurred processing WSGI script '/var/www/keystone/main'.
  2016-03-09 14:12:14.807440 Traceback (most recent call last):
  2016-03-09 14:12:14.807474   File "/var/www/keystone/main", line 25, in <module>
  2016-03-09 14:12:14.807536     application = wsgi_server.initialize_application(name)
  2016-03-09 14:12:14.807552   File "/opt/stack/new/keystone/keystone/server/wsgi.py", line 51, in initialize_application
  2016-03-09 14:12:14.807574     startup_application_fn=loadapp)
  2016-03-09 14:12:14.807586   File "/opt/stack/new/keystone/keystone/server/common.py", line 43, in setup_backends
  2016-03-09 14:12:14.807603     res = startup_application_fn()
  2016-03-09 14:12:14.807615   File "/opt/stack/new/keystone/keystone/server/wsgi.py", line 48, in loadapp
  2016-03-09 14:12:14.807632     'config:%s' % config.find_paste_config(), name)
  2016-03-09 14:12:14.807643   File "/opt/stack/new/keystone/keystone/service.py", line 45, in loadapp
  2016-03-09 14:12:14.807740     controllers.latest_app = deploy.loadapp(conf, name=name)
  2016-03-09 14:12:14.807757   File "/usr/local/lib/python2.7/dist-packages/paste/deploy/loadwsgi.py", line 247, in loadapp
  2016-03-09 14:12:14.808057     return loadobj(APP, uri, name=name, **kw)
  2016-03-09 14:12:14.808096   File "/usr/local/lib/python2.7/dist-packages/paste/deploy/loadwsgi.py", line 272, in loadobj
  2016-03-09 14:12:14.808122     return context.create()
  2016-03-09 14:12:14.808135   File "/usr/local/lib/python2.7/dist-packages/paste/deploy/loadwsgi.py", line 710, in create
  2016-03-09 14:12:14.808152     return self.object_type.invoke(self)
  2016-03-09 14:12:14.808162   File "/usr/local/lib/python2.7/dist-packages/paste/deploy/loadwsgi.py", line 144, in invoke
  2016-03-09 14:12:14.808176     **context.local_conf)
  2016-03-09 14:12:14.808187   File "/usr/local/lib/python2.7/dist-packages/paste/deploy/util.py", line 55, in fix_call
  2016-03-09 14:12:14.808277     val = callable(*args, **kw)
  2016-03-09 14:12:14.808300   File "/usr/local/lib/python2.7/dist-packages/paste/urlmap.py", line 31, in urlmap_factory
  2016-03-09 14:12:14.808447     app = loader.get_app(app_name, global_conf=global_conf)
  2016-03-09 14:12:14.808465   File "/usr/local/lib/python2.7/dist-packages/paste/deploy/loadwsgi.py", line 350, in get_app
  2016-03-09 14:12:14.808485     name=name, global_conf=global_conf).create()
  2016-03-09 14:12:14.808494   File "/usr/local/lib/python2.7/dist-packages/paste/deploy/loadwsgi.py", line 362, in app_context
  2016-03-09 14:12:14.808508     APP, name=name, global_conf=global_conf)
  2016-03-09 14:12:14.808516   File "/usr/local/lib/python2.7/dist-packages/paste/deploy/loadwsgi.py", line 450, in get_context
  2016-03-09 14:12:14.808529     global_additions=global_additions)
  2016-03-09 14:12:14.808538   File "/usr/local/lib/python2.7/dist-packages/paste/deploy/loadwsgi.py", line 562, in _pipeline_app_context
  2016-03-09 14:12:14.808552     for name in pipeline[:-1]]
  2016-03-09 14:12:14.808560   File "/usr/local/lib/python2.7/dist-packages/paste/deploy/loadwsgi.py", line 458, in get_context
  2016-03-09 14:12:14.808573     section)
  2016-03-09 14:12:14.808582   File "/usr/local/lib/python2.7/dist-packages/paste/deploy/loadwsgi.py", line 517, in _context_from_explicit
  2016-03-09 14:12:14.808595     value = import_string(found_expr)
  2016-03-09 14:12:14.808606   File "/usr/local/lib/python2.7/dist-packages/paste/deploy/loadwsgi.py", line 22, in import_string
  2016-03-09 14:12:14.808621     return pkg_resources.EntryPoint.parse("x=" + s).load(False)
  2016-03-09 14:12:14.808640   File "/usr/local/lib/python2.7/dist-packages/pkg_resources/__init__.py", line 2202, in load
  2016-03-09 14:12:14.810590     return self.resolve()
  2016-03-09 14:12:14.810636   File "/usr/local/lib/python2.7/dist-packages/pkg_resources/__init__.py", line 2208, in resolve
  2016-03-09 14:12:14.810691     module = __import__(self.module_name, fromlist=['__name__'], level=0)
  2016-03-09 14:12:14.810711   File "/opt/stack/new/keystone/keystone/contrib/federation/routers.py", line 17, in <module>
  2016-03-09 14:12:14.810904     from keystone.contrib.federation import controllers
  2016-03-09 14:12:14.810929   File "/opt/stack/new/keystone/keystone/contrib/federation/controllers.py", line 29, in <module>
  2016-03-09 14:12:14.811187     from keystone.contrib.federation import idp as keystone_idp
  2016-03-09 14:12:14.811213   File "/opt/stack/new/keystone/keystone/contrib/federation/idp.py", line 23, in <module>
  2016-03-09 14:12:14.811528     from saml2 import client_base
  2016-03-09 14:12:14.811554   File "/usr/local/lib/python2.7/dist-packages/saml2/client_base.py", line 11, in <module>
  2016-03-09 14:12:14.811952     from saml2.entity import Entity
  2016-03-09 14:12:14.811975   File "/usr/local/lib/python2.7/dist-packages/saml2/entity.py", line 13, in <module>
  2016-03-09 14:12:14.812649     from saml2.metadata import ENDPOINTS
  2016-03-09 14:12:14.812682   File "/usr/local/lib/python2.7/dist-packages/saml2/metadata.py", line 2, in <module>
  2016-03-09 14:12:14.813043     from saml2.algsupport import algorithm_support_in_metadata
  2016-03-09 14:12:14.813075   File "/usr/local/lib/python2.7/dist-packages/saml2/algsupport.py", line 2, in <module>
  2016-03-09 14:12:14.813176     from saml2.sigver import get_xmlsec_binary
  2016-03-09 14:12:14.813193   File "/usr/local/lib/python2.7/dist-packages/saml2/sigver.py", line 18, in <module>
  2016-03-09 14:12:14.813979     from future.backports.urllib.parse import urlencode
  2016-03-09 14:12:14.814037 ImportError: No module named future.backports.urllib.parse

  Upstream issue reported: https://github.com/rohe/pysaml2/issues/320

  This is due to a new dependency on the future package, which is not in
  stable/kilo global-requirements.

  We should probably just cap pysaml2 in stable/kilo at <4.0.4.

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