Building a VPN Between Google Cloud and AWS with Terraform [GSP854] Qwiklabs || 2022 Info Tech Anuj

Overview
This lab will show you how to use Terraform by
Hashi Corp to create secure, private, site-to-site
connections between Google Cloud and Amazon Web
Services (AWS) using virtual private networks (VPNs).
This is a multi-cloud deployment.

In this lab, you will deploy virtual machine (VM) instances
into custom virtual private cloud (VPC) networks in Google Cloud
and AWS. You then deploy supporting infrastructure to construct a
VPN connection with two Internet Protocol security (IPsec) tunnels
between the Google Cloud and AWS VPC networks. The environment and
tunnel deployment usually completes within four minutes. This lab is
based off of the Automated Network Deployment tutorial.

Build custom VPC networks with user-specified CIDR blocks in Google Cloud and AWS
Deploy a VM instance in each VPC network
Create VPN gateways in each VPC network and related resources for two IPsec tunnels

While Google Cloud uses routes to support equal-cost multi-path (ECMP) routing,
AWS supports VPN gateways with two tunnels, active and standby, for redundancy
and availability.

The lab configuration uses Cloud Router to demonstrate dynamic routing.
Cloud Router exchanges your VPC network route updates with your environment
in AWS using Border Gateway Protocol (BGP). Dynamic routing by Cloud Router
requires a separate Cloud Router for each IPsec tunnel. Alternatively, you
can configure a setup with static routes. Both configurations are covered in
the Cloud VPN Interop Guide.

In this lab, you used Terraform to build custom VPC networks with user-specified
CIDR blocks in Google Cloud and AWS, deploy a VM instance in each network, and
create VPN gateways in each VPC network and related resources for two IPsec
tunnels.