avoid the use of install-config

[alaypatel07]

Back in my openshift dev days, I remember the recommendation
was to never use install-config after the cluster is installed. The
information in install config is only prevalent during install time and
can change when cluster is running.

We currently use the install config to get the apiserver URL. A more
reliable way IMHO of finding the same information would be using
the infrastructures API

[alpatel@alpatel agnosticd]$ oc get infrastructures -oyaml | grep apiServerURL -C 2
  status:
    apiServerInternalURI: https://api-int.cluster-alpatel-pvc-migrate-440.alpatel-pvc-migrate-440.mg.dog8code.com:6443
    apiServerURL: https://api.cluster-alpatel-pvc-migrate-440.alpatel-pvc-migrate-440.mg.dog8code.com:6443
    etcdDiscoveryDomain: cluster-alpatel-pvc-migrate-440.alpatel-pvc-migrate-440.mg.dog8code.com
    infrastructureName: cluster-alpatel-pvc-m-g9k4h
[alpatel@alpatel agnosticd]$

[jmontleon]

Thank you for investigating @alaypatel07

[jwmatthews]

@alaypatel07++

[jmontleon]

I had to revert the PR.

 TASK [set_fact] ******************************** 
fatal: [localhost]: FAILED! => {"msg": "The conditional check 'infrastructures is defined and infrastructures.get('resources', [{}])[0].get('status'. {}).get('apiServerURL', '') != ''' failed. The error was: template error while templating string: expected name or number. String: {% if infrastructures is defined and infrastructures.get('resources', [{}])[0].get('status'. {}).get('apiServerURL', '') != '' %} True {% else %} False {% endif %}\n\nThe error appears to be in '/opt/ansible/roles/migrationcontroller/tasks/main.yml': line 86, column 7, but may\nbe elsewhere in the file depending on the exact syntax problem.\n\nThe offending line appears to be:\n\n    block:\n    - set_fact:\n      ^ here\n"}
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