AWS Infrastructure as Code Codepipeline with Terraform

AWS Infrastructure as Code(IaC) using Codepipeline with Terraform to provision resources for an enterprize application.

Environment Commands

• Terraform Initialize terraform init
• Observation: Initialized Local Backend,Downloaded the provider plugins (initialized plugins) and Review the folder structure .terraform folder
• Terraform Validate terraform validate
• Observation: If any changes to files, those will come as printed in stdout (those file names will be printed in CLI)
• Terraform Plan terraform plan -> Observation: No changes - Just prints the execution plan
• Terraform Apply terraform apply then approve OR terraform apply -auto-approve
• NOTE:To use the secret file for the DB - run terraform plan -var-file=secrets.tfvars OR terraform apply -var-file=secrets.tfvars
• Terraform Destroy terraform plan destroy then approve OR terraform destroy -auto-approve
• Clean-Up Files: rm -rf .terraform* and rm -rf terraform.tfstate*

Environmental Execution Individual Files

Deployment to different environments requires merging all the .auto.tfvars files to leverage the same terraform configuration across environments

• Pass the .tfvars file -var-file argument to terraform apply for each environment -> terraform apply -input=false -var-file=dev.tfvars -auto-approve

Store Secrets

• Navigate to AWS Systems Manager -> Application tools then select Parameter Store to create secret variables
• Create a GetParameter access in AWS IAM for CodeBuild service role build project

AWS Hosted Zones

• Create AWS hosted zones for your domain name on AWS -> Records servers = NS
• Copy the NS from AWS to the Cheapname Domain platform as Host Records -> Custom DNS