Software

• Visual Studio Code Download from here

Lab Environment

• Azure VM Creation Watch Here
• AWS EC2 Creation Watch Here
• Create atleast one Ubuntu VM either on AWS/Azure/any other means. Ensure the VM is connected to internet

How to enable communication between Chef Workstation and Chef Server

• Chef-Repo:

  • Is a directory on your workstation that stores everything required to communicate to the Chef Server
  • It also has the definitions to create
    • Cookbooks
    • Databags
    • Policyfiles
  • Chef-repo also has security keys for verifying the connection
  • Where do i get chef repo?

  

  • Chef-repo DIrectory Structure
  • .chef/ Directory in chef-repo will store validation files and whenever a starter kit is download a new validation file is generated. so its not a good idea to download starter kit multiple times

• ChefDK:

  • ChefDK has many software components which are installed on the workstation which can communicate with the server, but they need validation keys
  • Example without validation keys
  • Example with validation keys

How to enable communication between chef client node and chef server

• For this to happen, chef-client (agent) should be installed on the chef client nodes and this process of installing chef-client on client nodes is called as bootstrapping.
• knife is a commmand line tool which is installed as a part of chefdk and it can help in many things and bootstrap is one of them
• Lets learn how to use knife

cd <chef-repo>
knife --help
knife bootstrap --help

• Refer Here to build a bootstrap command
• For the machine with username and password

knife bootstrap <ipaddress> -x <username> -P <password> --sudo -N <nodename>

• For the machine with username and key

knife bootstrap <ipaddress> -x <username> -i <identityfile> --sudo -N <nodename>