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README.yaml
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README.yaml
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---
#
# This is the canonical configuration for the `README.md`
# Run `make readme` to rebuild the `README.md`
#
# Name of this project
name : Terraform AWS Transit Gateway
# License of this project
license: "APACHE"
# Canonical GitHub repo
github_repo: clouddrove/terraform-aws-transit-gateway
# Badges to display
badges:
- name: "Latest Release"
image: "https://img.shields.io/github/release/clouddrove/terraform-aws-transit-gateway.svg"
url: "https://github.com/clouddrove/terraform-aws-transit-gateway/releases/latest"
- name: "tfsec"
image: "https://github.com/clouddrove/terraform-aws-transit-gateway/actions/workflows/tfsec.yml/badge.svg"
url: "https://github.com/clouddrove/terraform-aws-transit-gateway/actions/workflows/tfsec.yml"
- name: "Licence"
image: "https://img.shields.io/badge/License-APACHE-blue.svg"
url: "LICENSE.md"
- name: "Changelog"
image: "https://img.shields.io/badge/Changelog-blue"
url: "CHANGELOG.md"
prerequesties:
- name: Terraform
url: https://learn.hashicorp.com/terraform/getting-started/install.html
version: ">= 1.6.6"
providers:
- name: aws
url: https://aws.amazon.com/
version: ">= 5.31.0"
module_dependencies:
- name: Labels Module
url: https://github.com/clouddrove/terraform-aws-labels
description: Provides resource tagging.
# description of this project
description: |-
Terraform module which creates Transit Gateway, Resource Association, Principal Association, Resource Share, Transit Gateway VPC Attachment on AWS.
# How to use this project
usage : |-
Here are some examples of how you can use this module in your inventory structure:
### Transit Gateway For Single Account
```hcl
module "transit-gateway" {
depends_on = [module.vpc, module.subnets]
source = "clouddrove/transit-gateway/aws"
name = local.name
environment = local.environment
tgw_create = true
description = "This transit Gateway create for testing purpose"
# VPC Attachements
vpc_attachments = {
vpc1 = {
vpc_id = module.vpc.vpc_id
subnet_ids = module.subnets.private_subnet_id
transit_gateway_default_route_table_association = true
transit_gateway_default_route_table_propagation = true
vpc_route_table_ids = module.subnets.public_route_tables_id
destination_cidr = ["192.168.0.0/16"]
},
vpc2 = {
vpc_id = module.vpc_other.vpc_id
subnet_ids = module.subnets_other.private_subnet_id
transit_gateway_default_route_table_association = true
transit_gateway_default_route_table_propagation = true
vpc_route_table_ids = module.subnets_other.private_route_tables_id
destination_cidr = ["0.0.0.0/0"]
}
}
}
```
### Transit Gateway for Multi AWS Account
### Main Account
```hcl
module "transit_gateway" {
depends_on = [module.vpc, module.subnets]
source = "clouddrove/transit-gateway/aws"
name = local.name
environment = local.environment
tgw_create = true
auto_accept_shared_attachments = "enable"
default_route_table_propagation = "enable"
description = "This transit Gateway create for testing purpose"
#TGW Share
resource_share_enable = true
resource_share_allow_external_principals = true
resource_share_account_ids = ["54xxxxxx"]
# VPC Attachements
vpc_attachments = {
vpc1 = {
vpc_id = module.vpc.vpc_id
subnet_ids = module.subnets.private_subnet_id
transit_gateway_default_route_table_association = true
transit_gateway_default_route_table_propagation = true
vpc_route_table_ids = module.subnets.public_route_tables_id
destination_cidr = ["10.11.0.0/16"]
},
vpc2 = {
vpc_id = module.vpc_other.vpc_id
subnet_ids = module.subnets_other.public_subnet_id
transit_gateway_default_route_table_association = false
transit_gateway_default_route_table_propagation = false
vpc_route_table_ids = module.subnets_other.public_route_tables_id
destination_cidr = ["31.0.0.0/16", "53.0.0.0/16"]
}
}
}
```
### Slave Account
```hcl
module "transit_gateway_peer" {
depends_on = [module.vpc, module.subnets]
source = "clouddrove/transit-gateway/aws"
name = local.name
environment = local.environment
tgw_create = false
#TGW Share
aws_ram_resource_share_accepter = true
resource_share_arn = "arn:aws:ram:eu-west-1:xxxxxxxx:resource-share/40b2b19b-6de6-478a-849b-xxxxxxxx"
# VPC Attachements
transit_gateway_id = "tgw-02c00xxxxxxx"
vpc_attachments = {
vpc1 = {
vpc_id = module.vpc.vpc_id
subnet_ids = module.subnets.private_subnet_id
transit_gateway_default_route_table_association = true
transit_gateway_default_route_table_propagation = true
vpc_route_table_ids = module.subnets.private_route_tables_id
destination_cidr = ["10.10.0.0/16"]
}
}
}
```