Merge branch 'pr/586'

Closes #586

Author: sigmavirus24

docs/scenarios/admin.rst

@@ -232,14 +232,37 @@ The Ansible playbook will ping all of the servers in the :file:`hosts.yml` file.
 You can also select groups of servers using Ansible. For more information
 about Ansible, read the `Ansible Docs <http://docs.ansible.com/>`_.
 
+`An Ansible tutorial <https://serversforhackers.com/an-ansible-tutorial/>`_ is also a 
+great and detailed introduction to getting started with Ansible.
+
 
 Chef
 ----
+`Chef <https://www.chef.io/chef/>`_  is a systems and cloud infrastructure automation 
+framework that makes it easy to deploy servers and applications to any physical, 
+virtual, or cloud location. In case this is your choice for configuration management, 
+you will primarily use Ruby to write your infrastructure code. 
+
+Chef clients run on every server that is part of your infrastructure and these regularly 
+check with your Chef server to ensure your system is always aligned and represents the 
+desired state. Since each individual server has its own distinct Chef client, each server 
+configures itself and this distributed approach makes Chef a scalable automation platform.
+
+Chef works by using custom recipes (configuration elements), implemented in cookbooks. Cookbooks, which are basically 
+packages for infrastructure choices, are usually stored in your Chef server. 
+Read the `Digital Ocean tutorial series <https://www.digitalocean.com/community/tutorials/how-to-install-a-chef-server-workstation-and-client-on-ubuntu-vps-instances>`_ on chef to learn how to create a simple Chef Server.
+
+To create a simple cookbook the `knife <https://docs.chef.io/knife.html>`_ command is used:
+
+.. code-block:: console 
+
+    knife cookbook create cookbook_name
 
-.. todo:: Write about Chef
+`Getting started with Chef <http://gettingstartedwithchef.com/first-steps-with-chef.html>`_ 
+is a good starting point for Chef Beginners and many community maintained cookbooks that can 
+serve as a good reference or tweaked to serve your infrustructure configuration needs can be 
+found on the `Chef Supermarket <https://supermarket.chef.io/cookbooks>`_.
 
-    `Chef Documentation
-    <http://wiki.opscode.com/display/chef/Documentation>`_
 
 Puppet
 ------