Read entire file from Azure VM, via Azure CLI

Question

I'm trying to retrieve a docker log for an application, from an Azure Devops Pipeline. In a pipeline step, I can run a bash script on the VM that's hosting the application, using the Azure CLI like this. This reads the docker log from the VM hosting the application:

az vmss run-command invoke --command-id RunShellScript --instance-id 0 -n aks-myservicename-12345678-vmss -g my-resource-group --scripts "docker logs [container_id]" > testing.txt

The problem is that the output of az vmss run-command invoke is limited to a max 4096 bytes - see https://docs.microsoft.com/en-us/azure/virtual-machines/linux/run-command#restrictions

Is there any way I can read the entire docker log?

The following reference documents an --output-blob-uri parameter that can be used with az vm run-command create. I'm wondering if that gives a way to output the docker log to a file that I can then access by using another Azure CLI step. I haven't found any documentation though on how this works https://docs.microsoft.com/en-us/cli/azure/vmss/run-command?view=azure-cli-latest