AWS Classroom Series – 14/Jul/2021

CloudFormation contd..

• Lets try to create the following architecture from cloudformation
• Phase 1:
  • vpc with six subnets
  • internet gateway and attaching internet gateway
  • Clone the repo Refer Here
  • Steps:
    • Created a template with vpc Refer Here
    • For template deployment lets ensure AWS CLI is installed and IAM User is configured
    • Installing AWS CLI Refer Here
    • Configure IAM user Refer Here
    • Create a cloudformation stack from aws cli Refer Here
    • The command will be like execute this command and make a note of stack id

    aws cloudformation create-stack --stack-name ntier-dev --template-body file://ntier.json
    

    • Now lets try to add one subnet Refer Here
    • Refer Here for the changeset
    • Now execute the command from cli aws cloudformation update-stack --stack-name ntier-dev --template-body file://ntier.json
    • Add other 5 subnets Refer Here for the changes
    • Now update the stack aws cloudformation update-stack --stack-name ntier-dev --template-body file://ntier.json
• To summarize:
  • Cloudformation stacks can be created from cli
    • create-stack
    • update-stack
    • delete-stack