KEDA: How to configure scaling on Azure Container Apps based on Ephemeral Disk Usage (or other) metrics

Question

I've read that exists support on ACA (Azure Container Apps) for multiple keda scalers.

I couldn't find any resources that has an example of how to use Metrics API (or other sources) to setup the autoscaling for my workload.

Basically I want to scale based on the disk usage instead of # of HTTP requests: if it reaches 70% of usage I want to scale up the number of containers, given each container will use 1vCPU hence I'll have 8GB additional and it would reduce the overall disk usage.

Could you give me any link where I can find how to setup the KEDA for ACA using such approach?

Best Regards,