Description of problem:

After an install of the cluster the deployed registry in 3.6 gets proxy variables set on the deployment configuration. The registry uses the kubernetes service IP to authenticate with user logging into the registry. This IP address does not get set resulting in logins and pushes to fail with the installer deployed registry.  

How reproducible:
100% 


Steps to Reproduce:
1. Install a cluster setting hosted registry vars and proxy vars in the hosts file
 openshift_http_proxy='https://testproxy.com'
 openshift_https_proxy='https://testproxy.com'
 openshift_no_proxy='.hosts.example.com,some-host.com'


Actual results:
    spec:
      containers:
      - env:
        - name: HTTPS_PROXY
          value: https://testproxy.com
        - name: HTTP_PROXY
          value: https://testproxy.com
        - name: NO_PROXY
          value: .cluster.local,.svc,docker-registry,docker-registry.svc,docker-registry.svc.cluster.local,<MASTERURLS>,<MASTERIP_ADDRESSES>,.hosts.example.com,some-host.com



docker login -u test -p `oc whoami -t`  docker-registry.default.svc:5000
Error response from daemon: Get https://docker-registry.default.svc:5000/v2/: unauthorized: authentication required


time="2017-12-18T19:52:23.556930453Z" level=debug msg="invalid token: Get https://172.30.0.1:443/oapi/v1/users/~: malformed HTTP response \"\\x15\\x03\\x01\\x00\\x02\\x02\\x16\"" go.version=go1.7.6 http.request.host="docker-registry.default.svc:5000" http.request.id=f6c021d6-a4e0-468e-8a04-20ac2ca2eb13 http.request.method=GET http.request.remoteaddr="10.129.0.1:48390" http.request.uri="/openshift/token?account=quicklab&client_id=docker&offline_token=true" http.request.useragent="docker/1.12.6 go/go1.8.3 kernel/3.10.0-693.12.1.el7.x86_64 os/linux arch/amd64 UpstreamClient(Docker-Client/1.12.6 \\(linux\\))" instance.id=1a30097d-7820-40f4-9765-0afc1dbdda43 openshift.logger=registry 



Expected results:

The registry get the service IP for the kubernetes service IP, and all internal registry requests do not use the configured proxy. 

Example: 
           value: .cluster.local,.svc,docker-registry,docker-registry.svc,docker-registry.svc.cluster.local,<MASTERURLS>,<MASTERIP_ADDRESSES>,.hosts.example.com,some-host.com,172.30.0.1 

Additional info:

https://github.com/openshift/openshift-ansible/commit/2960dd82cb2d9644f09957a0108ba3f817bd8b8c#diff-1fc9cdb7519394fff35b7aa41bfef936

https://github.com/openshift/openshift-ansible/blob/release-3.6/roles/openshift_hosted/tasks/registry/registry.yml#L64-L70