Bug 1445716

Description of problem:

"Check connectivity to various OpenStack services"  validation fails
Version-Release number of selected component (if applicable):
openstack-tripleo-ui-3.1.0-9.el7ost.noarch

How reproducible:
always

Steps to Reproduce:
1.deploy overcloud via UI
2.run the validation 

Actual results:
The validation fails with following output:
Task 'fail' failed:
Host: localhost
Message: The `KeystoneURL` output is not available in the deployed stack.

Failure! The validation failed for all hosts:
* localhost

Expected results:
Validation should pass
$ . stackrc 
$ openstack stack output show overcloud KeystoneURL
+--------------+----------------------------------------+
| Field        | Value                                  |
+--------------+----------------------------------------+
| description  | URL for the Overcloud Keystone service |
| output_key   | KeystoneURL                            |
| output_value | http://192.168.24.9:5000/v2.0          |
+--------------+----------------------------------------+


Additional info:
overcloudrc file was manually created after the deployment vi UI
$ cat overcloudrc 
# Clear any old environment that may conflict.
for key in $( set | awk '{FS="="}  /^OS_/ {print $1}' ); do unset $key ; done
NOVA_VERSION=1.1
export NOVA_VERSION
OS_PASSWORD=zY9Ks7VhyEzRsa8UaTCkXsCCA
export OS_PASSWORD
OS_AUTH_TYPE=password
export OS_AUTH_TYPE
OS_AUTH_URL=http://192.168.24.9:5000
PYTHONWARNINGS="ignore:Certificate has no, ignore:A true SSLContext object is not available"
export OS_AUTH_URL
export PYTHONWARNINGS
OS_USERNAME=admin
COMPUTE_API_VERSION=1.1
OS_NO_CACHE=True
OS_CLOUDNAME=overcloud
export OS_USERNAME
export COMPUTE_API_VERSION
export OS_NO_CACHE
export OS_CLOUDNAME