Workstations

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A workstation is a computer running the Chef Development Kit (ChefDK) that is used to author cookbooks, interact with the Chef server, and interact with nodes.

The workstation is the location from which most users do most of their work, including:

  • Developing and testing cookbooks and recipes
  • Testing Chef code
  • Keeping the chef-repo synchronized with version source control
  • Configuring organizational policy, including defining roles and environments, and ensuring that critical data is stored in data bags
  • Interacting with nodes, as (or when) required, such as performing a bootstrap operation

Some important components of workstations include:

Feature Description
Knife

knife is a command-line tool that provides an interface between a local chef-repo and the Chef server. knife helps users to manage:

  • Nodes
  • Cookbooks and recipes
  • Roles
  • Stores of JSON data (data bags), including encrypted data
  • Environments
  • Cloud resources, including provisioning
  • The installation of the chef-client on management workstations
  • Searching of indexed data on the Chef server
The chef-repo

The chef-repo is the repository structure in which cookbooks are authored, tested, and maintained:

  • Cookbooks contain recipes, attributes, custom resources, libraries, files, templates, tests, and metadata
  • The chef-repo should be synchronized with a version control system (such as git), and then managed as if it were source code

The directory structure within the chef-repo varies. Some organizations prefer to keep all of their cookbooks in a single chef-repo, while other organizations prefer to use a chef-repo for every cookbook.

knife.rb A knife.rb file is used to specify the chef-repo-specific configuration details for knife.

Chef DK

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, no matter the size of the infrastructure. Each organization is comprised of one (or more) workstations, a single server, and every node that will be configured and maintained by the chef-client. Cookbooks (and recipes) are used to tell the chef-client how each node in your organization should be configured. The chef-client (which is installed on every node) does the actual configuration.

The Chef Development Kit is a package that contains everything that is needed to start using Chef:

  • chef-client and ohai
  • chef command line tool
  • Testing tools such as Test Kitchen, ChefSpec, Cookstyle, and Foodcritic
  • Chef provisioning
  • Everything else needed to author cookbooks and upload them to the Chef server

After installing the ChefDK, learn more about the tools that are packaged with the Chef development kit: