Monday, November 15, 2021

Google Cloud VMware Engine: Bastion Host Access With IAP

Welcome back! This post will build on the previous posts in this series by deploying a Windows Server 2019 bastion host to manage our Google Cloud VMware Engine (GCVE) SDDC. Access to the bastion host will be provided with Identity-Aware Proxy (IAP). Everything will be deployed and configured with Terraform, with all of the code referenced in this post is available at https://github.com/shamsway/gcp-terraform-examples in the gcve-bastion-iap sub-directory.

Identity Aware Proxy (IAP) Overview

Standing up initial cloud connectivity is challenging. I walked through the steps to deploy a client VPN in Establishing an SDDC in Google Cloud, but this post will show how to use IAP as a method for accessing a new bastion host. Using IAP means that the bastion host will be accessible without having to configure a VPN or expose it to the internet. I am a massive fan of this approach, and while there are some tradeoffs to discuss, it is a simpler and more secure approach than traditional access methods.



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