failed to connect to devstack installed keystone

[yong sheng gong]

with this patch, devstack installed keystone is listening on just 80:

gongysh@ubuntu64:~/devstack$ openstack endpoint list
+----------------------------------+-----------+--------------+-------------------+---------+-----------+---------------------------------------+
| ID | Region | Service Name | Service Type | Enabled | Interface | URL |
+----------------------------------+-----------+--------------+-------------------+---------+-----------+---------------------------------------+
| 16b73ecd6a1c4f46bee7046ea5da6213 | RegionOne | tacker | nfv-orchestration | True | admin | http://192.168.252.140:9890/ |
| 186082239a2c4ae7a05faa73de45aee3 | RegionOne | tacker | nfv-orchestration | True | public | http://192.168.252.140:9890/ |
| 2355863e2c77495296c887ea5fa834de | RegionOne | keystone | identity | True | public | http://192.168.252.140/identity |
| 59abea1ef71042419a9aac0a0a4682fb | RegionOne | mistral | workflowv2 | True | public | http://192.168.252.140:8989/v2 |
| 898039ca48c149228359d13881521b2c | RegionOne | tacker | nfv-orchestration | True | internal | http://192.168.252.140:9890/ |
| 936301d1b4f246f4ad6867b006065e10 | RegionOne | mistral | workflowv2 | True | internal | http://192.168.252.140:8989/v2 |
| a25566126747447b87e1a85dba795a0a | RegionOne | mistral | workflowv2 | True | admin | http://192.168.252.140:8989/v2 |
| de3567593308406e90385d1aaa0b438e | RegionOne | keystone | identity | True | admin | http://192.168.252.140/identity_admin |
+----------------------------------+-----------+--------------+-------------------+---------+-----------+---------------------------------------+

with this mistral cannot connect to keystone:
2017-04-19 04:35:08.426 18721 CRITICAL keystonemiddleware.auth_token [-] Unable to validate token: Unable to establish connection to http://104.239.192.47:35357: HTTPConnectionPool(host='104.239.192.47', port=35357): Max retries exceeded with url: / (Caused by NewConnectionError('<requests.packages.urllib3.connection.HTTPConnection object at 0x7fe58fd39e10>: Failed to establish a new connection: [Errno 111] ECONNREFUSED',))

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/457961

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/457961
Committed: https://git.openstack.org/cgit/openstack/mistral/commit/?id=f6e80997616ec868f7cd5c1ebf2005b9b3ca5b22
Submitter: Jenkins
Branch: master

commit f6e80997616ec868f7cd5c1ebf2005b9b3ca5b22
Author: yong sheng gong <[e-mail]>
Date: Wed Apr 19 17:26:34 2017 +0800

    Fix the keystone auth url problem

    use identity_uri to set up keystone connection settings to
    avoid wrong keystone uri settings.

    Change-Id: I4b0836a6a241de2ddebf175445fd86a0bf8dcf85
    Closes-bug: #1684050

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/mistral 5.0.0.0b2 development milestone.