Initial setup

Run the following command on your control server to setup ansible

sudo yum install epel-release
sudo yum install ansible

Add user ansible as a user on the control server 
sudo adduser ansible

ssh to the remote server and add ansible as a user and set a password for the user
sudo adduser ansible
sudo passwd ansible

Go back to the control server, switch to the ansible user and create a ssh key
sudo su - ansible
ssh-keygen
ssh-copy-id [enter server ip or serever name]
enter the password you entered above

test to see if the ansible user can ssh to the server without the need for password
ssh {server ip or name}

Configure sudo access for Ansible on the `remote server` and the `control server` such that Ansible may use sudo for any command with no password prompt.
ssh to the reomte server using the regular user
sudo visudo
add ansible user to sudoers at the buttom of the file 
logout

back to the control server 
vim /home/ansible/inventory
Add the remote server name or ip to the inventory