Is there a way to pick disk type when creating ACIs? For example choose to use SSDs for better performance?
I don't see any mentions of any disk options in documentation for az container create
Azure Container Instances offers the fastest and simplest way to run a container in Azure, without having to manage any virtual machines and without having to adopt a higher-level service.
It seems you cannot select which disk type to run the container, it's decided by Azure. You just can select the CPU and memory. For more details, see Azure Container Instances.