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Issue description: 

lab identity-domain

Overcloud dashboard lost option to enter "Domain" at login.

Steps to reproduce: 
1) Delete and create a new lab environment
2) On workstation, run "lab identity-domain start"
3) Refresh http://overcloud.example.com
4) Login screen changed to allow for only User Name and Password, domain is no longer available
5) Only user/password admin/redhat is able to log in

6) On workstation, run "lab identity-domain finish"
7) Refresh http://overcloud.example.com
8) Still no option for domain.

Below is the text from lab start and lab finish. All ended with SUCCESS and no FAIL.

[student@workstation ~]$ lab identity-domain start

Setting up environment for the exercise:

 . Cleaning up finance and production: ........................ 
Cleaning up the project: finance

 · Deleting stacks: ........................................... SUCCESS
 · Deleting loadbalancers: .................................... SUCCESS
 · Deleting instances: ........................................ SUCCESS
 · Deleting floating IP addresses: ............................ SUCCESS
 · Deleting routers: .......................................... SUCCESS
 · Deleting networks: ......................................... SUCCESS
 · Deleting snapshots: ........................................ SUCCESS
 · Deleting volumes: .......................................... SUCCESS
 · Deleting images: ........................................... SUCCESS
 · Deleting security groups: .................................. SUCCESS

Cleaning up the project: production

 · Deleting stacks: ........................................... SUCCESS
 · Deleting loadbalancers: .................................... SUCCESS
 · Deleting instances: ........................................ SUCCESS
 · Deleting floating IP addresses: ............................ SUCCESS
 · Deleting routers: .......................................... SUCCESS
 · Deleting networks: ......................................... SUCCESS
 · Deleting snapshots: ........................................ SUCCESS
 · Deleting volumes: .......................................... SUCCESS
 · Deleting images: ........................................... SUCCESS
 · Deleting security groups: .................................. SUCCESS
SUCCESS
 · Removing group roles: ...................................... SUCCESS
 . Backing up multidomain configuration directory: controller0. SUCCESS
 . Backing up CA certificate for keystone: controller0......... SUCCESS
 . Removing multidomain keystone configuration: controller0.... SUCCESS
 . Removing multidomain horizon configuration: controller0..... SUCCESS
 . Set SELinux boolean: authlogin_nsswitch_use_ldap............ SUCCESS
 · Restarting Keystone: controller0............................ SUCCESS
 · Restarting Horizon: controller0............................. SUCCESS
 . Removing user from IdM server: svc-ldap..................... SUCCESS
 . Deleting domain: Example.................................... SUCCESS

[student@workstation ~]$ lab identity-domain finish

Cleaning up the lab on workstation:

 . Create domain: Example ..................................... SUCCESS
 · Creating project: finance................................... SUCCESS
 · Creating project: production................................ SUCCESS
 · Restoring group roles: ..................................... SUCCESS

Steps to reproduce:

Workaround:

Expected result: