Webtask sandbox docker container

For local development and testing purposes, it would be very useful if there was a dockerfile available that mimics a single Auth0 sandbox. Similar to the Docker image available that mimics the AWS lambda environment closely.
I have searched online, but wasn’t able to find anything other than a very general description about it.
Just local invoking a single function using wt-cli is not what I’m looking for. I’m really looking for spinning up the container, so all my local functions can be called via http locally.