Description of problem:
See the following detailed

Version-Release number of the following components:
3.7/2017-10-26.4_v3.7.0-0.181.0
openshift-ansible-3.7.0-0.181.0.git.0.34f6e3e.el7.noarch

How reproducible:
Always

Steps to Reproduce:
1. create ocp repo on haproxy lb host 
2. trigger a multiple master rpm install with haproxy lb
3.

Actual results:
installation failed.
TASK [openshift_master : Wait for API to become available] *********************
Friday 27 October 2017  02:47:22 +0000 (0:00:00.121)       0:13:12.100 ******** 
<--snip-->
FAILED - RETRYING: Wait for API to become available (1 retries left).
 [WARNING]: Consider using get_url or uri module rather than running curl

fatal: [qe-jialiu1-khis-master-etcd-1.1027-31k.qe.rhcloud.com]: FAILED! => {"attempts": 120, "changed": false, "cmd": ["curl", "--silent", "--tlsv1.2", "--cacert", "/etc/origin/master/ca-bundle.crt", "https://qe-jialiu1-khis-lb-1.1027-31k.qe.rhcloud.com:8443/healthz/ready"], "delta": "0:00:00.012922", "end": "2017-10-26 22:51:39.902043", "failed": true, "msg": "non-zero return code", "rc": 7, "start": "2017-10-26 22:51:39.889121", "stderr": "", "stderr_lines": [], "stdout": "", "stdout_lines": []}

Go to master, master api service is running well.
Go to haproxy lb host, haproxy service is NOT started.
# service haproxy status
Redirecting to /bin/systemctl status haproxy.service
● haproxy.service - HAProxy Load Balancer
   Loaded: loaded (/usr/lib/systemd/system/haproxy.service; enabled; vendor preset: disabled)
  Drop-In: /etc/systemd/system/haproxy.service.d
           └─limits.conf
   Active: failed (Result: exit-code) since Thu 2017-10-26 23:13:20 EDT; 3s ago
  Process: 16854 ExecStart=/usr/sbin/haproxy-systemd-wrapper -f /etc/haproxy/haproxy.cfg -p /run/haproxy.pid $OPTIONS (code=exited, status=1/FAILURE)
 Main PID: 16854 (code=exited, status=1/FAILURE)

Oct 26 23:13:20 qe-jialiu1-khis-lb-1 systemd[1]: Starting HAProxy Load Balancer...
Oct 26 23:13:20 qe-jialiu1-khis-lb-1 haproxy-systemd-wrapper[16854]: haproxy-systemd-wrapper: executing /usr/sbin/haproxy -f /etc/haproxy/haproxy.cfg -p /run/haproxy.pid -Ds
Oct 26 23:13:20 qe-jialiu1-khis-lb-1 haproxy-systemd-wrapper[16854]: [ALERT] 298/231320 (16855) : parsing [/etc/haproxy/haproxy.cfg:37] : 'listen' cannot handle unexpected a... ':9000'.
Oct 26 23:13:20 qe-jialiu1-khis-lb-1 haproxy-systemd-wrapper[16854]: [ALERT] 298/231320 (16855) : parsing [/etc/haproxy/haproxy.cfg:37] : please use the 'bind' keyword for l...ddresses.
Oct 26 23:13:20 qe-jialiu1-khis-lb-1 haproxy-systemd-wrapper[16854]: [ALERT] 298/231320 (16855) : Error(s) found in configuration file : /etc/haproxy/haproxy.cfg
Oct 26 23:13:20 qe-jialiu1-khis-lb-1 haproxy-systemd-wrapper[16854]: [ALERT] 298/231320 (16855) : Fatal errors found in configuration.
Oct 26 23:13:20 qe-jialiu1-khis-lb-1 haproxy-systemd-wrapper[16854]: haproxy-systemd-wrapper: exit, haproxy RC=1
Oct 26 23:13:20 qe-jialiu1-khis-lb-1 systemd[1]: haproxy.service: main process exited, code=exited, status=1/FAILURE
Oct 26 23:13:20 qe-jialiu1-khis-lb-1 systemd[1]: Unit haproxy.service entered failed state.
Oct 26 23:13:20 qe-jialiu1-khis-lb-1 systemd[1]: haproxy.service failed.
Hint: Some lines were ellipsized, use -l to show in full.



Expected results:
haproxy lb should be installed successfully.

Additional info:
1. downgrade haproxy to haproxy-1.5.18-6.el7.x86_64, restart haproxy successfully.
2. update haproxy to haproxy-1.7.9-1.el7.x86_64 again, haproxy still failed, then removing the following lines from /etc/haproxy/haproxy.cfg:

#listen stats :9000
#    mode http
#    stats enable
#    stats uri /

Restart haproxy, this time it succeed. So seem like the new haproxy does NOT support the old syntax.

And this haproxy rpm is installed from OCP puddle.