Description of problem:
Can't get the master pods during the installation in proxy environment

Version-Release number of the following components:
openshift-ansible-3.10.7-1.git.220.50204c4.el7.noarch.rpm

How reproducible:
always

Steps to Reproduce:
1. Trigger HA installation with haproxy LB set behind proxy


Actual results:
Installation failed at TASK [openshift_control_plane : Wait for all control plane pods to become ready] ***

<--snip-->
FAILED - RETRYING: Wait for all control plane pods to become ready (1 retries left).
FAILED - RETRYING: Wait for all control plane pods to become ready (1 retries left).
failed: [host-8-249-254.host.centralci.eng.rdu2.redhat.com] (item=controllers) => {"attempts": 60, "changed": false, "failed": true, "item": "controllers", "results": {"cmd": "/usr/bin/oc get pod master-controllers-ghuang-bug-master-etcd-2 -o json -n kube-system", "results": [{}], "returncode": 0, "stderr": "Error from server (NotFound): pods \"master-controllers-ghuang-bug-master-etcd-2\" not found\n", "stdout": ""}, "state": "list"}
failed: [host-8-240-239.host.centralci.eng.rdu2.redhat.com] (item=controllers) => {"attempts": 60, "changed": false, "failed": true, "item": "controllers", "results": {"cmd": "/usr/bin/oc get pod master-controllers-ghuang-bug-master-etcd-1 -o json -n kube-system", "results": [{}], "returncode": 0, "stderr": "Error from server (NotFound): pods \"master-controllers-ghuang-bug-master-etcd-1\" not found\n", "stdout": ""}, "state": "list"}
failed: [host-8-250-249.host.centralci.eng.rdu2.redhat.com] (item=controllers) => {"attempts": 60, "changed": false, "failed": true, "item": "controllers", "results": {"cmd": "/usr/bin/oc get pod master-controllers-ghuang-bug-master-etcd-3 -o json -n kube-system", "results": [{}], "returncode": 0, "stderr": "Error from server (NotFound): pods \"master-controllers-ghuang-bug-master-etcd-3\" not found\n", "stdout": ""}, "state": "list"}

Expected results:

Additional info:
Please attach logs from ansible-playbook with the -vvv flag