Unable to run Ghost on Google Cloud GKE

I am installing the latest version of Ghost via the included Helm chart on Google Cloud’s GKE Kubernetes engine. The install is going great except for one blocker.

GKE requires that any service connected to an ingress returns a 200, and all attempts to setup a health check probe return a 301.

How can I construct a request against Ghost which is guaranteed to return a 200 under normal operations?

I may try to fork the repo and setup a /healthz endpoint just for this purpose.