Description of problem:
Public hostname provided by `oc cluster up --public-hostname` redirects to https://127.0.0.1:8443 and failed to be accessed
Checked webconsole-config configmap, it uses https://127.0.0.1:8443

Version-Release number of selected component (if applicable):
$ oc version
oc v3.10.0-0.47.0
...
Server https://10.8...:8443
openshift v3.10.0-0.47.0
...

How reproducible:
Always

Steps to Reproduce:
1. In remote host, run:
oc cluster up --public-hostname=10.8... --image='brew-.../openshift3/ose-${component}:${version}' # single quotes
...
OpenShift server started.

The server is accessible via web console at:
    https://10.8...:8443

You are logged in as:
    User:     developer
    Password: <any value>

To login as administrator:
    oc login -u system:admin

2. In local browser, visit https://10.8...:8443, it goes to https://127.0.0.1:8443

3. Check config:
$ oc login -u system:admin
$ oc get cm webconsole-config -n openshift-web-console -o yaml
... "consolePublicURL":"https://127.0.0.1:8443/console/","masterPublicURL":"https://127.0.0.1:8443" ...


Actual results:
2. Cannot visit https://10.8...:8443
3. It uses 127.0.0.1.
If manually change consolePublicURL to use 10.8..., the browser can visit login page, but the login always redirects to login page.
If manually change masterPublicURL to use 10.8... as well, browser can visit and login to web console

Expected results:
Can visit https://10.8...:8443 successfully

Additional info:
cd openshift.local.clusterup/
grep masterPublicURL `find . -name "master-config.yaml"` # the master-config.yaml is good 'masterPublicURL: https://10.8...:8443'