openshift-ansible: htpasswd' is unavailable. Please install httpd-tools on the control node

Description

Playbook fails at:

TASK [openshift_metrics : fail] *****************************************************************************************************************************************
fatal: [apps.mydomain.com]: FAILED! => {"changed": false, "failed": true, "msg": "'htpasswd' is unavailable. Please install httpd-tools on the control node"}

On a single master install.

Version

Please put the following version information in the code block indicated below.

ansible --version ansible 2.3.0.0 python version = 2.7.13 (default, Jan 19 2017, 14:48:08) [GCC 6.3.0 20170118]

Steps To Reproduce

1. Run ansible-playbook -i inventory.erb ./openshift-ansible/playbooks/byo/config.yml where the inventory is:

[OSEv3:children]
masters
nodes
nfs

[OSEv3:vars]
ansible_ssh_user=root
deployment_type=origin
openshift_master_identity_providers=[{'name': 'htpasswd_auth', 'login': 'true', 'challenge': 'true', 'kind': 'HTPasswdPasswordIdentityProvider', 'filename': '/etc/origin/master/htpasswd'}]
containerized=true
openshift_release=v3.6.0
openshift_image_tag=v3.6.0
openshift_public_hostname=apps.domain.com
openshift_master_default_subdomain=apps.domain.com
openshift_hosted_metrics_deploy=true
enable_excluders=false
openshift_disable_check=docker_storage
openshift_hosted_metrics_public_url=apps.domain.com

[etcd]
apps.domain.com

[nfs]
apps.domain.com

[masters]
apps.domain.com openshift_schedulable=true

[nodes]
apps.domain.com openshift_node_labels="{'region': 'infra', 'zone': 'default'}" openshift_schedulable=true

Expected Results

Expect installation to complete successfully, including installing metrics.

Observed Results

Fails with

TASK [openshift_metrics : fail] *****************************************************************************************************************************************
fatal: [apps.mydomain.com]: FAILED! => {"changed": false, "failed": true, "msg": "'htpasswd' is unavailable. Please install httpd-tools on the control node"}
	to retry, use: --limit @/home/john/git/openshift-ansible/playbooks/byo/config.retry

PLAY RECAP **************************************************************************************************************************************************************
apps.mydomain.com        : ok=492  changed=38   unreachable=0    failed=1   
localhost                  : ok=14   changed=0    unreachable=0    failed=0   



Failure summary:


  1. Hosts:    apps.mydomain.com
     Play:     Create Hosted Resources
     Task:     openshift_metrics : fail
     Message:  'htpasswd' is unavailable. Please install httpd-tools on the control node