DevOps Classroom Series – 07/Jan/2021

Lets bring up the hosted chef

• Navigate to https://manage.chef.io/login and create account if you down thave.
• Login into hosted chef
• Ensure you have organization created
• We have the chef infra server which is hosted and free of usage till 5 nodes
• Now lets move to workstation and install chef dk (chef development kit)
  • Refer Here for the chef dk
  • Installing chefdk using chocolatey on windows (choco install chefdk -y)
    • Once installation is complete close and relaunch powershell terminal and execute chef --version
  • Chef Server has to be linux machine
  • Chef Workstation can be linux/mac/windows
  • Chef node can be linux/mac/windows/network switch/router
  • Now we need to configure nodes. Configuring nodes is
    • install chef-client software on the node
    • setting up private/public key communication b/w chef server and node
• Now we need to install chef-client and setup authentication b/w server and node. This process is called as bootstrapping
• Generally bootstrapping is done from workstations.
• To bootstrap from chef workstation we need
  • chefdk to be installed
  • chef starter kit to be downloaded on workstation
  • Download the chef repo and extract it. The basic folder structure will be as shown below
  • Now lets look into .chef folder there will be a
    • .pem file which is a private key for enabling authentication with chef server
    • config.rb which has information about server
• Chef dk has many tools, one of the tool which we start with is knife
• If you are executing any chef dk tool which requires you to interact with chef server, ensure you are operating from extracted chef starter kit (chef-repo)
• Create one ubuntu 18.04 server in aws (which will be node 1)
• Ensure you are able to connect to node from workstation
• Basic workflow of bootstrap
• find the help from command line

knife --help
knife bootstrap --help

• Finding help from chef documentation Refer Here
• Build a bootstrap command and execute

knife bootstrap ec2-54-214-197-70.us-west-2.compute.amazonaws.com -U ubuntu -i ~/Downloads/cheflearning.pem --sudo -N awsnode1

• Exercise: Bootstrap atleast one linux node (Centos/Ubuntu/Redhat)
• Next Steps:
  • We will bootstrap one redhat family linux node (From azure)