Terraform Import using Terraform modules in AWS

Question

I have a Terraform template file which uses some externally sourced modules (Stored in a Git repo) and I am trying to import my ECS cluster and I have tried to run

terraform import module.module_name arn::here

But I get an error regarding resource addressing and that the resource address must contain a full resource spec.

Answer 1

Run a terraform plan first, and you will see all of the resources that your module will be attempting to create.

Find the ECS cluster referenced in there - it will likely show up as Terraform trying to create a new resource (Because that's what it should do :-))

Now that is the name of the Terraform resource you want to address, it'll be much longer than just module.module_name it'll be something like module.module_name.ecs_cluster.your_ecs_cluster_resource_name or something.

And then rather than using the ARN as the second argument, you just want to use the cluster name as the documentation states.