CentOS shell script to automatically enable EPEL repository, update the system and install Ansible for configuration management. Useful to bootstrap a system in preparation for Ansible configuration.

bootstrap_ansible.sh

#!/bin/bash

# Download and install EPEL repository.
/usr/bin/wget http://dl.fedoraproject.org/pub/epel/6/x86_64/epel-release-6-8.noarch.rpm
/usr/bin/yum -y install epel-release-6*.rpm

# Fully update the system and install Ansible
/usr/bin/yum -y update
/usr/bin/yum -y install ansible

# Cleanup after ourselves.
/bin/rm -rf /root/epel-release-6*.rpm /root/bootstrap_ansible.sh

# Restart the server.
/sbin/shutdown -r now

exit