Getting aws data in terraform without creating resource in terraform

Question

Any ideas on how to get ALL of the data for a resources not created via terraform?

This is assuming I do not have filters/ids.

I just want to view all of the instances of a resource (not created via terraform)

If that is not possible, How do I view all the resources with the filter of same tag .

data "aws_eip" "by_tags" {
  tags = {
    Env = "DEV"
  }
}

Terraform errors with

Error: multiple Elastic IPs matched; use additional constraints to reduce matches to a single Elastic IP

Thank you

Answer 1

Sadly you can't do this . You must know something about the EC2 Transit Gateway VPN which you want to find. If not tags , then maybe its id , or some values for filter option.

If you run the data source without any attributes you will get an error, which you are getting.

You can check filters available for transit-gateway-attachment and see if you can use any of them, instead of name which you don't know.

Answer 2

You can bulk import these existing resources into terraform format with a tool like terraformer .