Basic Ansible playbook for Linode

Given a default install of Ubuntu on Linode this playbook does the following:

• Sets the hostname
• Sets the timezone
• Creates a new user for ssh
• Uploads a ssh public key for the above user
• Creates a basic firewall
• Disables ssh root login
• Disables ssh password login

##Usage ansible-playbook linode_playbook.yml -i hosts --ask-pass

##To improve Ideally all the variables set should be configurable.