Hi @David_Straub,
Welcome to Google Cloud Community!
Upon checking on the configuration, it seems like the metadata annotation is misconfigured. The gke-gcsfuse/volumes: "true” annotation should be under the pod template - .spec section.
To learn more about Kubernetes deployment specs, check out these resources:
Please see image below to see exactly what’s been modified:
Here’s a working test deployment I’ve created using the configuration shown above.
Note: For demonstration purposes, some annotations from the original configuration have been removed from the modified version. Feel free to add them back to your own configuration as needed.
I hope the above information is helpful.