Let username and password keywords only in CloudBackend.get_remot_client.
Let username and password keywords only in CloudBackend.get_remot_client.

cloudbase/cloudbase-init-ci,stefan-caraiman/cloudbase-init-ci,AlexandruTudose/cloudbase-init-ci,cmin764/argus-ci,PCManticore/argus-ci,micumatei/cloudbase-init-ci