Setting up a Chef workstation with ChefDK

*This is assuming you are running on CentOS or some other RHEL platform

Download the Chef-DK package…
Go to:
Install the package…

sudo rpm -Uvh ChefDK.....rpm

Once its installed check it and make sure the install was successful…

sudo chef verify


Set System Ruby


which ruby

You might see something like this: ~/.rvm/rubies/ruby-2.1.1/bin/ruby
If you want to use the version of ruby that came with ChefDK do the following…assuming you are using BASH…

echo 'eval "$(chef shell-init bash)"' >> ~/.bash_profile


source ~/.bash_profile


which ruby

Install Git if you dont already have it…

sudo yum git install


Setting up the chef-repo

You can do this two ways….download the starter kit from your Chef server OR manually. In this case we will do this manually because I already happen to have a hosted Chef account and am also using my keys on other instances and dont want to have to set them all up again. So…go to your home directory and do:

git clone git://

Then go to ~/chef-repo/ and do:

mkdir .chef

Three files will need to be placed in this directory:
– knife.rb
– ORGANIZATION-validator.pem
– USER.pem

In order to not upload your .chef directory which will house your certs do this:

echo '.chef' >> ~/chef-repo/.gitignore

Now you need to get the 3 files that go into your .chef directory.
Log onto your Chef server. For me this is located at:

Once logged in click ADMINISTRATION at the top then the name of your organization.

Knife.rb – Click “Generate Knife Config” and download the file. Place it in your .chef directory
ORGANIZATION-validator.pem – can be downloaded by clicking “Reset Validation Key” in the Administration page.
USER.pem – can be downloaded by clicking Users on the left hand side and then choosing your username, and finally clicking “Reset Key


Add Ruby to your Path


echo 'export PATH="/opt/chefdk/embedded/bin:$PATH"' >> ~/.configuration_file && source ~/.configuration_file

Now lets verify that we are all set…

cd ~/chef-repo


knife client list

You should see a list of your clients which will only be the one you are on for right now.

That’s it. Let me know if you have questions or run into issues or see mistakes.


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