To create simple recipes, you only need to use resources provided by Chef such as
service. However, as your recipes become more elaborate, you'll discover the need to do more advanced things such as conditionally execute parts of your recipe, looping, or even complex calculations.
Instead of declaring the
gem_package resource ten times, simply use different name attributes; it is so much easier to loop through an array of gem names creating the
gem_package resources on the fly.
Start a Chef-shell on any of your nodes in Client mode to be able to access your Chef server, as shown in the following code:
user@server:~$ sudo chef-shell --client
loading configuration: /etc/chef/client.rb Session type: client ...TRUNCATED OUTPUT... run `help' for help, `exit' or ^D to quit. Ohai2u user@server! chef...