Description of problem:
In roles/openshift_version/tasks/main.yml:
<--snip-->
- when:
  - inventory_hostname in groups['oo_masters_to_config'] or inventory_hostname in groups['oo_nodes_to_config']
  block:
  - name: Set openshift_version for rpm installation
    include: set_version_rpm.yml
    when: not is_containerized | bool

  - name: Set openshift_version for containerized installation
    include: set_version_containerized.yml
    when: is_containerized | bool
<--snip-->

"inventory_hostname in groups['oo_masters_to_config'] or inventory_hostname in groups['oo_nodes_to_config']" does not take haproxy lb into consideration, that would lead to set_version_containerized.yml will be skipped on lb host. That would lead to 'openshift_image_tag' is not defined, which would lead to fail to pull haproxy docker pull image.

Version-Release number of selected component (if applicable):
openshift-ansible-3.6.131-1.git.0.d87dfaa.el7.noarch

How reproducible:
Awlays

Steps to Reproduce:
1. Prepare an inventory host file for a containerized isntall, define a lb host in the inventory host file.
2. Trigger installation.
3.

Actual results:
Job failed at the following task:
<--snip-->
TASK [openshift_loadbalancer : Pull haproxy image] *****************************
Monday 03 July 2017  07:40:30 +0000 (0:00:00.104)       0:17:48.371 *********** 
fatal: [xxx.compute-1.amazonaws.com]: FAILED! => {
    "failed": true
}

MSG:

the field 'args' has an invalid value, which appears to include a variable that is undefined. The error was: 'openshift_image_tag' is undefined

The error appears to have been in '/home/slave3/workspace/Launch Environment Flexy/private-openshift-ansible/roles/openshift_loadbalancer/tasks/main.yml': line 6, column 3, but may
be elsewhere in the file depending on the exact syntax problem.

The offending line appears to be:


- name: Pull haproxy image
  ^ here
<--snip-->


Expected results:
LB containerize install should be completed successfully.

Additional info: