Can you extract the subnet-ids from the VPC module?

[yannickvranckx]

Description

Is there a possibility to extract the subnet-ids from the module when it is being deployed?
For example: To create a Transit Gateway attachment to an existing Transit Gateway for example, as that resource needs subnet-ids to operate.

Versions

• Module version [Required]: 5.0

• Terraform version: 1.5.2 - darwin_amd64

• Provider version(s): Installing hashicorp/aws v5.7.0...

Reproduction Code [Required]

`
module "vpc" {
source = "terraform-aws-modules/vpc/aws" #Source of the module

name = var.name
cidr = var.cidr

azs = var.azs
private_subnets = var.private_subnets
public_subnets = var.public_subnets

enable_nat_gateway = false #Disable the NAT GW
single_nat_gateway = false #NAT not HA
enable_vpn_gateway = false
enable_flow_log = true #Enable flow logs
flow_log_destination_type = "s3" # Set the destination
flow_log_destination_arn = resource.aws_s3_bucket.flow_logs.arn
enable_dns_hostnames = true
enable_dns_support = true
}
`

[trevorrea]

The module has outputs for this purpose. See https://github.com/terraform-aws-modules/terraform-aws-vpc#output_private_subnets and https://github.com/terraform-aws-modules/terraform-aws-vpc#output_private_subnets etc. etc.

All the outputs are documented in the README file.

[rjay98]

I'm using cdktf and I'm getting an error - instead of the subnetIds (e.g., subnet-00XXXX) the outputs are the IPv4 CIDRs (e.g., 10.0.1.0/24)

Edit: I'm working around this by creating a new data_aws_subnets/DataAwsSubnets resource to look up by vpc-id and my tags, but just an FYI!

[github-actions]

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