rhel-osp-director: 7.3->8.0 upgrade. Running "openstack undercloud install" fails with puppet error: Error: /Stage[main]/Apache::Service/Service[httpd]: Failed to call refresh: Could not restart Service[httpd]


Environment:
openstack-tripleo-heat-templates-0.8.10-2.el7ost.noarch
instack-undercloud-2.2.5-1.el7ost.noarch
openstack-tripleo-puppet-elements-0.0.4-1.el7ost.noarch


Steps to reproduce:
1. Deploy/populate 7.3
2. Yum update the undercloud to 8.0
3. Run "openstack undercloud install"

Result:



+ set -e
+ echo 'puppet apply exited with exit code 6'
puppet apply exited with exit code 6
+ '[' 6 '!=' 2 -a 6 '!=' 0 ']'
+ exit 6
[2016-03-15 15:08:41,858] (os-refresh-config) [ERROR] during configure phase. [Command '['dib-run-parts', '/usr/libexec/os-refresh-config/configure.d']' returned non-zero exit status 6]

[2016-03-15 15:08:41,858] (os-refresh-config) [ERROR] Aborting...
Traceback (most recent call last):
  File "<string>", line 1, in <module>
  File "/usr/lib/python2.7/site-packages/instack_undercloud/undercloud.py", line 807, in install
    _run_orc(instack_env)
  File "/usr/lib/python2.7/site-packages/instack_undercloud/undercloud.py", line 691, in _run_orc
    _run_live_command(args, instack_env, 'os-refresh-config')
  File "/usr/lib/python2.7/site-packages/instack_undercloud/undercloud.py", line 366, in _run_live_command
    raise RuntimeError('%s failed. See log for details.' % name)
RuntimeError: os-refresh-config failed. See log for details.
Command 'instack-install-undercloud' returned non-zero exit statu