LAB 3: Installing and Configuring Chef


LAB 3: Installing and Configuring Chef

Step 1. Go to —-> Downloads

Step 2. Click on Chef Workstation

Step 3. Go to Red Hat Enterprise Linux/CentOS

Step 4. Copy URL of Red Hat Enterprise Linux/CentOS 7

yum install chefdk-3.0.36-1.c17.x86_64.rpm –y

Step 5. Verify Chef Installations

chef –v
chef -- version

Step 6. Generating a Cookbook

  • Cookbook is a group of recipes and some other files and folders
  • Each cookbook defines a scenario
  • Create a new directory (Don’t change the name of the directory). Go inside & create a cookbook (Whatever you do, do inside cookbooks folder)
mkdir cookbooks
cd cookbooks
chef generate cookbook test-cookbook
tree test-cookbook

Step 7. Components of Cookbook

  • Chefignore: like .gitignore
  • Kitchen.yml: for testing cookbook
  • Metadata.rb: name, author, version, etc…of cookbook
  • info about usage of cookbook
  • Recipe: Where you write code
  • Spec: For unit test
  • Test: For integration test
  • Chef Supermarket: Where you get custom code

Step 8. Generating a Recipe

cd test-cookbook
chef generate recipe test-recipe
cd ..
vi test-cookbook/recipes/test-recipe.rb
(Press i)
file ‘/myfile’ do
  content “Welcome to RST Forum!!!”
  action :create
(Press esc)

Step 9. To verify the code

chef exec ruby –c test-cookbook/recipes/test-recipe.rb

Step 10. Apply that recipe locally

chef-client –zr “recipe[test-cookbook::test-recipe]”
ls /