This Repo will create CloudFormation Template using CodeBuild Service.

• Create a codecommit repository and upload the files using git bash and other git commands like git add, git commit and git push.
• Create a child branch and add code in child branch to remote.
• Create a Codebuild Project from AWS Console with below information:
  • For Operating system, choose Ubuntu.
  • For Runtime, choose Standard.
  • For Image, choose aws/codebuild/standard:5.0.
  • Create environment variables ENVIRONMENT_NAME , VPC_ID, SUBNET_ID to pass the values while executing the build job.
• Add Permissions to create IAM, EC2, CloudFormation to the CodeBuild Role.
• As we are using SSM Parameter to get LatestAmiId, SSM Read Only Access to codebuild role.

• config - contains buildspec.yml file that will be used by CodeBuild Project.
• templates - contains CF templates to create stack.
• scripts - contains scripts that runs aws cli commands to create CF stack

• Create a child branch and check-in this code to AWS CodeCommit Remote Repo.
• Execute CodeBuild Project for non-prod environment creation from this child branch
• Validate the CodeBuild Execution and CF stack creation in non-prod environment.
• Raise a PR from child branch to master/main i.e stable git branch.
• Review and once approved, merge changes from child branch into master/main stable branch.
• Execute CodeBuild Project for prod environment creation from master/main stable branch.
• Resolved source version => Commit id of the repo , which helps you to navigate back to git repo to re-evalutate incase u have to know what code was executed by the build.

• Run your Build Projects with develop or any feature branch with dev/qa as environment values only.
• Production environment build should always happen from master/main branch.