DevOps Classroom Series – 02/Nov/2021

Test Kitchen

• We can use test kitchen to test cookbook across any combination of platforms
• When we create a cookbook, we have a file with in cookbook kitchen.yaml
  • Drivers:
    • Drivers help test kitchen to create test instances.
    • Chef supports Creating test instances on cloud providers and also on virtual box
      • AWS
      • Azure
      • GCP
      • Virtual Box (Vagrant)
    • Refer Here for the documentation
  • Key Concepts
    • A platform reprsents the operating system where the cookbook will be tested
    • A suite which will have a run_list
    • A provisioner chef_zero or chef_solo
• Lets start working on a cookbook apache_phpinfo and set up the ec2 driver Refer Here
• Also Refer Here for the kitchen ec2 driver documentation
• Install aws cli Refer Here
• Refer Here for the changes done in kitchen.yaml
• Kitchen has commands, execute them as mentioned below *
• To check syntax install ruby Refer Here and then execute the command ruby -c <path to recipe>
• In chef we have a generic package resource Refer Here. Refer Here for the changes done to use a generic package.
• Lets converge using test kitchen kitchen converge
• Lets use array for installing packages Refer Here
• Lets try to check if our changes works on a fresh ubuntu instance.
• Lets delete the ec2 created by kitchen
• Now lets do kitchen converge to simulate fresh installation
  • converge