Terraform notes

Do aws configure

aws configure

Terraform lifecycle

terraform init # Initialize project
terraform plan # Check difference
terraform apply # Create resources
terraform destroy # Destroy resources

# It won't ask for confirmation to create resources
terraform apply -auto-approve

Lessons

• dep lesson about dependencies
• count-demo and count-advc are lessons about how to create multiple ec2 instances, for example
• vars lesson about how to setup differently test and prod environments using same terraform files

  terraform plan -var-file=test.tfvars
  terraform plan -var-file=prod.tfvars
  
  # And to apply use
  terraform apply -var-file=prod.tfvars
  

• import about importing a resource that's already on AWS and you want terraform to control it

  # For example vpc-020dc6ade3c71871e is the id of a VPC already created
  terraform import aws_vpc.myvpc2 vpc-020dc6ade3c71871e 
  # When you do terraform destroy 
  # it will destroy the two VPCs
  

Resources

• Terraform Registry Modules AWS VPC documentation
• Terraform for AWS - Beginner to Expert
• Terraform Registry AWS Provider documentation