rht/ocp-ing-ichp-materials: Playbooks and other exercise collaterals for ING ICHP training @ 017c2f2986ada2f5675ad09d479a3957fe7bc9f8

Grega Bremec 017c2f2986 remove unused vars from comments, add group creation task		10 mesi fa
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roles	017c2f2986 remove unused vars from comments, add group creation task	10 mesi fa
ansible.cfg	5ba72150ed copy and adapt playbook and roles to current env	10 mesi fa
inventory.yml	336dd1c6e4 add openshift attrs, turn off direct grants for openshift oidc client	10 mesi fa
pre-flight.yml	afa09a65b9 rudimentary oidc integration added	10 mesi fa