Query: ecs_container_instances_for_ecs_cluster

select
  i.arn as container_instance_arn
from
  aws_ecs_container_instance as i
  left join aws_ec2_instance as e on i.ec2_instance_id = e.instance_id
where
  i.arn is not null
  and i.cluster_arn = $1
  and i.account_id = split_part($1, ':', 5)
  and i.region = split_part($1, ':', 4);