/aws_terraform_env_deploy

Primary LanguageHCL

Demo Terraform Multi-Env Deploy using Workspaces

Why Terraform?

  • Version your Infrastructure
  • Simplified configuration files over CloudFormation
  • Infrastructure as code that is in lockstep with feature/code deployments
  • Supports a Myriad of Cloud Providers
  • Can spawn up infrastructure across different Cloud Platforms
  • Infrastructure orchestration
  • One click process to set/teardown everything

Steps

  1. Zip application to deploy & append version number to file
  2. Execute terraform init in deployments directory on first use
  3. Execute terraform workspace new pilot to create Pilot workspace
  4. Execute terraform workspace new prod to create Prod workspace
  5. When deploying for an environment
    • Activate workspace terraform workspace select pilot
    • Execute terraform plan -var-file=pilot.tfvars -out=plan.pilot to create plan file
    • Execute terraform apply plan.pilot to deploy to Pilot environment

Pros

  • Slightly less duplication of modules
  • Unnecessary to have multiple backend files

Cons

  • Concept of workspaces is implicit and not explicit
  • Requires understanding of workspaces
  • More verbose mechanism for deploying environments
  • Version of application is a little muddy