Generate random keystone users

Depends-On: https://gerrit.mcp.mirantis.com/#/c/44319/
Depends-On: https://gerrit.mcp.mirantis.com/#/c/45118/
Depends-On: https://gerrit.mcp.mirantis.com/#/c/45119/

Related-Prod: PROD-29868
Related-Prod: PROD-31315
(cherry picked from commit f5956c2f6151cc5d99659103f90641ea66eac44a)
(cherry picked from commit 70dd0f0587eb297fbefdea43837839c4983b8378)

Change-Id: I402be73437d5397224184a4fd71e2f6abae24db2
diff --git a/keystone/client/v3/service/radosgw-swift.yml b/keystone/client/v3/service/radosgw-swift.yml
index 2e78bb9..cf1290d 100644
--- a/keystone/client/v3/service/radosgw-swift.yml
+++ b/keystone/client/v3/service/radosgw-swift.yml
@@ -12,6 +12,7 @@
               enabled: true
           users:
             swift:
+              name: ${_param:keystone_swift_username}
               password: ${_param:keystone_swift_password}
               email: ${_param:admin_email}
               options: ${_param:openstack_service_user_options}