Imagine you have a k8s cluster locked down inside GCP and you want to deploy your SPA on Pages. Your SPA has some logic that needs to live in a function (or worker, but function would be nicer for deploys) and said function needs to communicate with your k8s cluster inside GCP.
If you don't want to open up your cluster to outside traffic, would it be possible to use Cloudflare Tunnels for this?