terraform-aws-tgw

Terraform module for managing AWS Transit Gateway resources.

Usage

IMPORTANT NOTE: The main branch is used as the module source for the usage examples, in place of the version. It is important to pin the release tag (e.g. ?ref=tags/x.y.z) for the module to the source, when using any portion of this module to provision resources. The main branch may contain undocumented breaking changes.

module "vpc" {
  source = "https://github.com/bsakdol/terraform-aws-tgw?ref=main"

  name = "example-tgw"

  amazon_side_asn = 65535

  tags = {
    Environment = "development"
    Owner       = "bsakdol"
    Terraform   = "true"
  }
}

Examples

• Complete
• Simple
• Transit Gateway Peering
• Transit Gateway VPC Attachment

Requirements

Name	Version
terraform	>= 1.1
aws	>= 4.8

Providers

Name	Version
aws	>= 4.8

Modules

No modules.

Resources

Name	Type
aws_ec2_tag.this	resource
aws_ec2_transit_gateway.this	resource

Inputs

Name	Description	Type	Default	Required
amazon_side_asn	Private Autonomous System Number (ASN) for the Amazon side of a BGP session. The range is 64512 to 65534 for 16-bit ASNs and 4200000000 to 4294967294 for 32-bit ASNs.	number	64512	no
auto_accept_shared_attachments	Whether resource attachment requests are automatically accepted.	bool	false	no
default_route_table_association	Whether resource attachments are automatically associated with the default association route table.	bool	true	no
default_route_table_propagation	Whether resource attachments automatically propagate routes to the default propagation route table.	bool	true	no
description	Description of the EC2 Transit Gateway.	string	null	no
dns_support	Whether DNS support is enabled.	bool	true	no
manage_tgw	A boolean flag to control whether or not to manage TGW resources.	bool	true	no
multicast_support	Whether multicast is enabled.	bool	false	no
name	Name to be used as an identifier of all managed resources.	string	null	no
tags	Key-value tags for the EC2 Transit Gateway. If configured with a provider default_tags configuration block present, tags with matching keys will overwrite those defined at the provider-level.	map(string)	{}	no
timeouts	Create, update, and delete timeout configuration options for the Transit Gateway.	map(string)	{}	no
transit_gateway_cidr_blocks	One or more IPv4 or IPv6 CIDR blocks for the transit gateway. Must be a size /24 CIDR block or larger for IPv4, or a size /64 CIDR block or larger for IPv6.	list(string)	[]	no
transit_gateway_tags	A map of tags to assign to the TGW resource. Resource specific tags will override all other tags.	map(string)	{}	no
vpn_ecmp_support	Whether VPN Equal Cost Multipath Protocol support is enabled.	bool	true	no

Outputs

Name	Description
arn	EC2 Transit Gateway Amazon Resource Name (ARN).
association_default_route_table_id	Identifier of the default association route table.
id	EC2 Transit Gateway identifier.
owner_id	Identifier of the AWS account that owns the EC2 Transit Gateway.
propagation_default_route_table_id	Identifier of the AWS account that owns the EC2 Transit Gateway.
tags_all	A map of tags assigned to the resource, including those inherited from the provider default_tags configuration block.
tgw_all	A map of TGW attributes.