rht/ocp-ing-ichp-materials: Playbooks and other exercise collaterals for ING ICHP training @ 9a836b290c4748b0df7f4b89c01950553d47930d

Grega Bremec 9a836b290c change group names to reflect they are global		hai 1 mes
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roles	9a836b290c change group names to reflect they are global	hai 1 mes
ansible.cfg	5ba72150ed copy and adapt playbook and roles to current env	hai 1 mes
inventory.yml	22aeef5d9f rename role deploy-operator to plural, implement operatorgroup checks, installplan checks, auto and manual approval	hai 1 mes
pre-flight.yml	5c82008507 write and include setup-rbac role	hai 1 mes