security group being created even if the security_group_ids is empty

[danielaraujobc]

Describe the Bug

The "default" module security group is being created even if the parameter security_group_ids is empty. From what I saw, this SG will be made if these security_group_ids are filled with the allowed SGs to inbound.

For reference, in the line 193 only creates the SG with the ingress rules if security_group_ids is filled. But the same is not happening with the "egress" rules.

resource "aws_security_group_rule" "egress" {
[...]
}

In the end I have a SG with no inbounds

and a single outbound

Expected Behavior

If security_group_ids is empty, no Security Groups must be created.

Steps to Reproduce

Create an instance without (or empty list) the security_group_ids parameter and with the parameter associate_security_group_ids filled.

module "rds" {
  source  = "cloudposse/rds/aws"
  version = "1.1.2"
  associate_security_group_ids = ["my-existing-sg"]
}

Screenshots

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Environment

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Additional Context

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