IBM VPC Subnets

Terraform module to provision subnets for an existing VPC. The number of subnets created depends on the value provided for _count. The created subnets will be named after the vpc with a suffix based on the value provided for label. Optionally, if values are provided for gateways then the subnets will be created with a public gateway.

Software dependencies

The module depends on the following software components:

Command-line tools

terraform - v13
kubectl

Terraform providers

IBM Cloud provider >= 1.22.0
Helm provider >= 1.1.1 (provided by Terraform)

Module dependencies

This module makes use of the output from other modules:

Resource Group - github.com/cloud-native-toolkit/terraform-ibm-container-platform.git
VPC - github.com/cloud-native-toolkit/terraform-ibm-vpc.git
Gateway - github.com/cloud-native-toolkit/terraform-ibm-vpc-gateways.git

Example usage

module "dev_subnet" {
  source = "github.com/cloud-native-toolkit/terraform-ibm-vpc-subnets.git?ref=v1.0.3"
  
  resource_group_id   = module.resource_groups.id
  vpc_name            = module.vpc.name
  acl_id              = module.vpc.acl_id
  gateways            = module.gateways.gateways
  subnets             = var.subnets
  region              = var.region
  label               = var.label
  ibmcloud_api_key    = var.ibmcloud_api_key

Module Variables

Name	Type	Description	Sensitive	Default
region	string	The IBM Cloud region where the cluster will be/has been installed.
ibmcloud_api_key	string	The IBM Cloud api token	true
resource_group_id	string	The id of the IBM Cloud resource group where the VPC has been provisioned.
vpc_name	string	The name of the vpc instance
acl_id	string	Optional. Use existing ACL for subnets
gateways	list(object({id = string, zone = string}))	List of gateway ids and zones		[]
label	string	Label for the subnets created		default
subnets		A map describing the subnets to be provisioned. Lists can contain IPV4 CIDR Blocks or total ipv4 address counts		{ zone-1 = [ "10.10.10.0/24", 256 ], zone-2 = [ "10.40.10.0/24" ], zone-3 = [ "10.70.10.0/24" ] }
subnet_data	list(string)	A list of subnets to get from a data block. Conflicts with `subnets`.		[]
acl_rules		List of rules to set on the subnet access control list. Conflicts with `acl_id`		[]

Module Outputs

Name	Description
count	The number of subnets created
ids	The ids of the created subnets
names	The ids of the created subnets
subnets	The subnets that were created
acl_id	The id of the network acl for the subnets
vpc_name	The name of the VPC where the subnets were provisioned
vpc_id	The id of the VPC where the subnets were provisioned

jvallexm/terraform-ibm-vpc-subnets