Find right object in outputs of terraform state

Terraform
1

Hello

I create a list of vpc objets with a specific module for VPC

module "vpc" {
  source                       = "../../../../modules/terraform-aws-vpc"
  for_each                     = { for k, j in var.vpc_vars : k.vpc_name => j }
  cidr                         = local.cidr[each.key]
  create_database_subnet_group = false
  secured_subnets              = length(each.value.secured_subnets) == 0 ? local.secured_subnets[each.key] : each.value.secured_subnets
  connectivity_subnets         = length(each.value.connectivity_subnets) == 0 ? local.connectivity_subnets[each.key] : each.value.connectivity_subnets
  private_subnets              = length(each.value.private_subnets) == 0 ? local.private_subnets[each.key] : each.value.private_subnets

I use s3 backend remote state.
Now I need to get back attributes of a specific vpc from vpc outputs. Here is the terraform state :

vpc = {
  "backend" = "s3"
  "config" = {
    "bucket" = "tf-remote-state20230512112122017100000002"
    "key" = "toto-prod-vpc/terraform.tfstate"
    "profile" = "toto-prod-adm"
    "region" = "eu-west-3"
  }
  "defaults" = null
  "outputs" = {
    "vpc" = toset([
      {
        "appliance_mode_support" = true
        "application" = "infra"
        "cidr" = "192.168.0.0/24"
        "connectivity_subnets" = tolist([])
        "create_flow_log_cloudwatch_iam_role" = true
        "create_flow_log_cloudwatch_log_group" = true
        "create_igw" = true
        "create_tgw_attachment" = false
        "create_tgw_rt" = true
        "enable_dns_hostnames" = true
        "enable_dns_support" = true
        "enable_flow_log" = true
        "enable_nat_gateway" = false
        "enable_vpn_gateway" = false
        "flow_log_max_aggregation_interval" = 60
        "private_subnets" = tolist([])
        "secured_subnets" = tolist([])
        "tgw_destination_cidr" = "10.0.0.0/8"
        "type_vpc_subnets_attachment" = "private"
        "vpc_name" = "services-partages"
      },
    ])
    "vpc_name" = tolist([
      "services-partages",
    ])
  }
  "workspace" = tostring(null)
}

so I would like to get back all these attributes :

{
        "appliance_mode_support" = true
        "application" = "infra"
        "cidr" = "192.168.0.0/24"
        "connectivity_subnets" = tolist([])
        "create_flow_log_cloudwatch_iam_role" = true
        "create_flow_log_cloudwatch_log_group" = true
        "create_igw" = true
        "create_tgw_attachment" = false
        "create_tgw_rt" = true
        "enable_dns_hostnames" = true
        "enable_dns_support" = true
        "enable_flow_log" = true
        "enable_nat_gateway" = false
        "enable_vpn_gateway" = false
        "flow_log_max_aggregation_interval" = 60
        "private_subnets" = tolist([])
        "secured_subnets" = tolist([])
        "tgw_destination_cidr" = "10.0.0.0/8"
        "type_vpc_subnets_attachment" = "private"
        "vpc_name" = "services-partages"
      },

How Can I do it ? the best way is to choose the right vpc output with the attribute “vpc_name”.

thanks in advance

2

You should be able to use the index function and get the one you want from list of VPCs

output "my_vpc_xxx" {
  value = module.vpc[index(module.vpc.*.vpc_name, "services-partages")].xxx
}

Where xxx is each field to expose.

Maybe I’m not clear on your ask though.

3

I talk about outputs values of terraform states.