When managing a set of servers it's important to make sure that the right people (and only them) have access to them. You definitely don't want a shared account whose password is known by everyone. You don't want to hardcode any users into your recipes either because you want to separate logic and data.
Chef helps you to manage users on your nodes using data bags for your users and to let a recipe create and remove the users accordingly.
Let's have a look at how you can do that.
Make sure you've a cookbook named
my_cookbook and the
run_list of your node includes
my_cookbook as described in the Creating and using cookbooks section in Chapter 1, Chef Infrastructure.
Make sure you've the
berkshelf gem installed ...