Is it possible to mount a container using tmpfs?

[WinstonN]

I was wondering if we could take advantage of the 3GB max memory of lambda, by using https://docs.docker.com/storage/tmpfs/

Do you think it could be possible?

[jorge-lip]

The default execution mode of udocker Pn and also Fn cannot mount filesystems. They only perform pathname translation and thus can only access files and directories that are already available in the host.
Inside lambda you also cannot mount filesystems.
The only thing that you can do is perhaps use the /dev/shm of the host, if available should be visible inside udocker.