[Bug 1094921] [NEW] keystone postinst fails with KeyError: <VerNum(4)>

[James Troup]

Public bug reported:

When upgrading from 2012.1+stable~20120824-a16a0ab9-0ubuntu2.2 to
2012.1+stable~20120824-a16a0ab9-0ubuntu2.3 (lovely version numbers, by
the way), I'm getting the following spew from the postinst:

| Setting up keystone (2012.1+stable~20120824-a16a0ab9-0ubuntu2.3) ...
| Traceback (most recent call last):
|   File "/usr/bin/keystone-manage", line 28, in <module>
|     cli.main(argv=sys.argv, config_files=config_files)
|   File "/usr/lib/python2.7/dist-packages/keystone/cli.py", line 148, in main
|     return run(cmd, (args[:1] + args[2:]))
|   File "/usr/lib/python2.7/dist-packages/keystone/cli.py", line 134, in run
|     return CMDS[cmd](argv=args).run()
|   File "/usr/lib/python2.7/dist-packages/keystone/cli.py", line 36, in run
|     return self.main()
|   File "/usr/lib/python2.7/dist-packages/keystone/cli.py", line 57, in main
|     driver.db_sync()
|   File "/usr/lib/python2.7/dist-packages/keystone/identity/backends/sql.py", line 135, in db_sync
|     migration.db_sync()
|   File "/usr/lib/python2.7/dist-packages/keystone/common/sql/migration.py", line 54, in db_sync
|     CONF.sql.connection, repo_path, version)
|   File "/usr/lib/python2.7/dist-packages/migrate/versioning/api.py", line 186, in upgrade
|     return _migrate(url, repository, version, upgrade=True, err=err, **opts)
|   File "<string>", line 2, in _migrate
|   File "/usr/lib/python2.7/dist-packages/migrate/versioning/util/__init__.py", line 159, in with_engine
|     return f(*a, **kw)
|   File "/usr/lib/python2.7/dist-packages/migrate/versioning/api.py", line 345, in _migrate
|     changeset = schema.changeset(version)
|   File "/usr/lib/python2.7/dist-packages/migrate/versioning/schema.py", line 80, in changeset
|     changeset = self.repository.changeset(database, start_ver, version)
|   File "/usr/lib/python2.7/dist-packages/migrate/versioning/repository.py", line 225, in changeset
|     changes = [self.version(v).script(database, op) for v in versions]
|   File "/usr/lib/python2.7/dist-packages/migrate/versioning/repository.py", line 189, in version
|     return self.versions.version(*p, **k)
|   File "/usr/lib/python2.7/dist-packages/migrate/versioning/version.py", line 140, in version
|     return self.versions[VerNum(vernum)]
| KeyError: <VerNum(4)>
| dpkg: error processing keystone (--configure):
|  subprocess installed post-installation script returned error exit status 1

This is on Ubuntu 12.04 with precise-proposed enabled.

** Affects: keystone (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: canonistack

** Tags added: canonistack

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Title:
  keystone postinst fails with KeyError: <VerNum(4)>

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