Is it possible to use Google App Engine with Google Cloud VPN?

Question

The documentation from Google is not really clear about it. Here ( https://cloud.google.com/compute/docs/vpn/overview ) it says

Google Cloud VPN secu

Answer 1

Google Cloud VPN securely connects your existing network to your Google Cloud Platform (GCP) network through an IPsec VPN connection. Therefore, only resources that are connected to GCP networks can communicate through Cloud VPN tunnels.

App Engine Flexible Environment is based on Google Compute Engine and consequently can connect to your remote network via Cloud VPNs. As described in this article, you can specify network settings in your app.yaml configuration file of your GAE Flexible application.