How to add ECS attributes to an instance using terraform

Question

I heavily use ECS Attributes on our containerized infrastructure. I couldn't find terraform docs to achieve this. Do I need to execute aws cli commands manually to apply those attributes after creating the infrastructure?

Answer 1

I'd recommend having the ECS agent set the ECS attributes if you need these.

You can do this by adding ECS_INSTANCE_ATTRIBUTES to the /etc/ecs/ecs.config file or passing them as an environment variable directly to the ECS agent on startup.

If you have a "base" ECS AMI (either one you rolled your own or the Amazon Linux AMI) then you probably just want to use user data to dynamically set this from Terraform.