Incorrect cluster_instance_count calculation when autoscaling_enabled = true about terraform-aws-rds-cluster HOT 2 CLOSED

Yes ,The cluster_size or the instance_count should be independent of autoscaling_min_capacity as autoscaling_min_capacity is automatically taken care of by AWS through the autoscaling policy.

For example, when autoscaling is enabled:
If I specify:
cluster_size = 2
autoscaling_min_capacity = 1

terraform creates only one instance even though cluster_size is set to 2 ,

and if I specify:
cluster_size = 2
autoscaling_min_capacity = 2

terraform spins up 2 instances but AWS autoscaling policy immediately spins up one more instance, which is not desired.

This also breaks the terraform as it is not aware of the new instance that is created by AWS autoscaling policy.

Fix:
Remove min_instance count and just keep
locals {
cluster_instance_count = var.enabled ? var.cluster_size : 0
}

from terraform-aws-rds-cluster.

@aknysh Is there a way I can raise a PR for this?

from terraform-aws-rds-cluster.