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HomeSoftware EngineeringThe right way to create a Web site-to-Web site VPN in Terraform

The right way to create a Web site-to-Web site VPN in Terraform


To create a site-to-site VPN utilizing Terraform, you should use the aws_vpn_gateway and aws_vpn_connection sources from the AWS supplier. Right here’s an instance Terraform configuration to create a site-to-site VPN:

useful resource "aws_vpn_gateway" "vpn_gateway" {
  vpc_id       = "<VPC_ID>"
  tags = {
    Identify = "SiteToSiteVPN"
  }
}

useful resource "aws_vpn_connection" "vpn_connection" {
  customer_gateway_id = "<CUSTOMER_GATEWAY_ID>"
  vpn_gateway_id     = aws_vpn_gateway.vpn_gateway.id
  kind               = "ipsec.1"
  static_routes_only = true

  tags = {
    Identify = "SiteToSiteVPNConnection"
  }
}

useful resource "aws_vpn_connection_route" "vpn_connection_route" {
  destination_cidr_block = "<DESTINATION_CIDR_BLOCK>"
  vpn_connection_id     = aws_vpn_connection.vpn_connection.id
}

Within the above Terraform configuration, you could substitute <VPC_ID> with the ID of the VPC the place the VPN gateway will likely be hooked up, <CUSTOMER_GATEWAY_ID> with the ID of the client gateway representing the distant web site, and <DESTINATION_CIDR_BLOCK> with the CIDR block of the distant community you need to connect with.

This configuration creates a VPN gateway (aws_vpn_gateway), a VPN connection (aws_vpn_connection), and a VPN connection route (aws_vpn_connection_route). The VPN gateway is hooked up to the required VPC, and the VPN connection is related to the client gateway and the VPN gateway. The VPN connection route specifies the vacation spot CIDR block that needs to be routed via the VPN connection.

After you have the Terraform configuration prepared, you may initialize the Terraform undertaking, plan the infrastructure adjustments, and apply them utilizing the Terraform CLI. The VPN sources will likely be provisioned based mostly on the configuration supplied.

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