NetApp driver requires rpm/dpkg-query binaries

[Christian Berendt]

At the moment cinder/volume/drivers/netapp/utils requires the rpm or dpkg-query utils to check for an installed python-cinder package. Without those tools or without an installed python-cinder package the NetApp driver is not usable.

2017-02-27 13:53:00.385 7 WARNING cinder.keymgr.conf_key_mgr [req-25dc241c-3e9b-40e8-bb8d-06ca338fb4f4 - - - - -] This key manager is insecure and is not recommended for production deployments
2017-02-27 13:53:00.427 7 INFO cinder.volume.drivers.netapp.utils [req-25dc241c-3e9b-40e8-bb8d-06ca338fb4f4 - - - - -] Could not run rpm command: [Errno 2] No such file or directory.
2017-02-27 13:53:00.457 29 INFO cinder.volume.manager [req-a5c45e4b-3faf-4a3e-8ebf-96567da99bf1 - - - - -] Driver initialization completed successfully.
2017-02-27 13:53:00.465 7 INFO cinder.volume.drivers.netapp.utils [req-25dc241c-3e9b-40e8-bb8d-06ca338fb4f4 - - - - -] Could not run dpkg-query command: Unexpected error while running command.
Command: dpkg-query -W -f='${Version}' python-cinder
Exit code: 1
Stdout: u''
Stderr: u'dpkg-query: no packages found matching python-cinder\n'.