===================================================================================control.

===================================================================================

control.realmX.example.com _ workstation.lab.example.com

node1.realmX.example.com _ servera.lab.example.com

node2.realmX.example.com _ serverb.lab.example.com

node3.realmX.example.com _ serverc.lab.example.com

node4.realmX.example.com _ serverd.lab.example.com

node5.realmX.example.com

- username:root, password:redhat

- username:admin, password:redhat

note1. don’t change ‘root’ or ‘admin’ password.

note2. no need to create ssh-keygen for access, its pre-defined

note3. SELinux is in enforcing mode and firewalld is disabled/stop on whole managed hosts.

===================================================================================

Modify file content.

------------------------

Create a playbook called /home/admin/ansible/modify.yml as follows:

* The playbook runs on all inventory hosts

* The playbook replaces the contents of /etc/issue with a single line of text as

follows:

--> On hosts in the dev host group, the line reads: “Development”

--> On hosts in the test host group, the line reads: “Test”

--> On hosts in the prod host group, the line reads: “Production”