ultimate-terraform-bootcamp

UTB supporting code repository

Assumptions

• AWS/GCP/Azure Accounts are already present
• GCP Project is already present
• Terraform backend bucket is already present
• CloudSQL Admin api is enabled

Commands Used

 export GOOGLE_CREDENTIALS=PATH_TO_CREDS_JSON
 terraform init
 terraform fmt
 terraform destroy --target=google_compute_instance.instance_01

Tips

• Interpolations(variables) cannot be used in backend configuration. reason: The terraform block is loaded very early in the execution of Terraform and interpolations are not yet available.
• Random Provider used to create random strings.
• If you face 403 unauthorized errors for valid authentication, then remove .terraform directory from your workspace and try again.
• Attributes of a data source

   The syntax is data.TYPE.NAME.ATTRIBUTE. For example. ${data.aws_ami.ubuntu.id} will interpolate the id attribute from the aws_ami data source named ubuntu. If the data source has a count attribute set, you can access individual attributes with a zero-based index, such as ${data.aws_subnet.example.0.cidr_block}. You can also use the splat syntax to get a list of all the attributes: ${data.aws_subnet.example.*.cidr_block}.
  

• SQL import is still not supported

Reference Articles

• https://blog.gruntwork.io/terraform-tips-tricks-loops-if-statements-and-gotchas-f739b bae55f9
• https://medium.com/@hbarcelos/things-i-wish-i-knew-about-terraform-before-jumping-into-it-43ee92a9dd65