We probably shouldn't be installing vendor plugins in the default image YAML. We had a similar problem with the cisco plugin a few weeks ago.
Logs:
2016-12-12 13:44:12,412 INFO: [mNotice: /Stage[main]/Neutron::Db::Sync/Exec[neutron-db-sync]/returns: Traceback (most recent call last):[0m
2016-12-12 13:44:12,413 INFO: [mNotice: /Stage[main]/Neutron::Db::Sync/Exec[neutron-db-sync]/returns: File "/usr/bin/neutron-db-manage", line 10, in <module>[0m
2016-12-12 13:44:12,413 INFO: [mNotice: /Stage[main]/Neutron::Db::Sync/Exec[neutron-db-sync]/returns: sys.exit(main())[0m
2016-12-12 13:44:12,413 INFO: [mNotice: /Stage[main]/Neutron::Db::Sync/Exec[neutron-db-sync]/returns: File "/usr/lib/python2.7/site-packages/neutron/db/migration/cli.py", line 686, in main[0m
2016-12-12 13:44:12,413 INFO: [mNotice: /Stage[main]/Neutron::Db::Sync/Exec[neutron-db-sync]/returns: return_val |= bool(CONF.command.func(config, CONF.command.name))[0m
2016-12-12 13:44:12,413 INFO: [mNotice: /Stage[main]/Neutron::Db::Sync/Exec[neutron-db-sync]/returns: File "/usr/lib/python2.7/site-packages/neutron/db/migration/cli.py", line 205, in do_upgrade[0m
2016-12-12 13:44:12,413 INFO: [mNotice: /Stage[main]/Neutron::Db::Sync/Exec[neutron-db-sync]/returns: run_sanity_checks(config, revision)[0m
2016-12-12 13:44:12,413 INFO: [mNotice: /Stage[main]/Neutron::Db::Sync/Exec[neutron-db-sync]/returns: File "/usr/lib/python2.7/site-packages/neutron/db/migration/cli.py", line 670, in run_sanity_checks[0m
2016-12-12 13:44:12,414 INFO: [mNotice: /Stage[main]/Neutron::Db::Sync/Exec[neutron-db-sync]/returns: script_dir.run_env()[0m
2016-12-12 13:44:12,414 INFO: [mNotice: /Stage[main]/Neutron::Db::Sync/Exec[neutron-db-sync]/returns: File "/usr/lib/python2.7/site-packages/alembic/script/base.py", line 407, in run_env[0m
2016-12-12 13:44:12,414 INFO: [mNotice: /Stage[main]/Neutron::Db::Sync/Exec[neutron-db-sync]/returns: util.load_python_file(self.dir, 'env.py')[0m
2016-12-12 13:44:12,414 INFO: [mNotice: /Stage[main]/Neutron::Db::Sync/Exec[neutron-db-sync]/returns: File "/usr/lib/python2.7/site-packages/alembic/util/pyfiles.py", line 93, in load_python_file[0m
2016-12-12 13:44:12,414 INFO: [mNotice: /Stage[main]/Neutron::Db::Sync/Exec[neutron-db-sync]/returns: module = load_module_py(module_id, path)[0m
2016-12-12 13:44:12,414 INFO: [mNotice: /Stage[main]/Neutron::Db::Sync/Exec[neutron-db-sync]/returns: File "/usr/lib/python2.7/site-packages/alembic/util/compat.py", line 79, in load_module_py[0m
2016-12-12 13:44:12,414 INFO: [mNotice: /Stage[main]/Neutron::Db::Sync/Exec[neutron-db-sync]/returns: mod = imp.load_source(module_id, path, fp)[0m
2016-12-12 13:44:12,414 INFO: [mNotice: /Stage[main]/Neutron::Db::Sync/Exec[neutron-db-sync]/returns: File "/usr/lib/python2.7/site-packages/bsnstacklib/plugins/bigswitch/db/migration/alembic_migrations/env.py", line 20, in <module>[0m
2016-12-12 13:44:12,415 INFO: [mNotice: /Stage[main]/Neutron::Db::Sync/Exec[neutron-db-sync]/returns: from neutron.db import model_base[0m
2016-12-12 13:44:12,415 INFO: [mNotice: /Stage[main]/Neutron::Db::Sync/Exec[neutron-db-sync]/returns: ImportError: cannot import name model_base[0m
2016-12-12 13:44:12,415 INFO: [1;31mError: /Stage[main]/Neutron::Db::Sync/Exec[neutron-db-sync]: Failed to call refresh: neutron-db-manage upgrade heads returned 1 instead of one of [0][0m
Fix proposed to branch: master /review. openstack. org/409809
Review: https:/