Save changes to openwhisk docker container

I am using the openwhisk/standalone docker image.
I created the container with
sudo docker run --name openwhisk -v //var/run/docker.sock:/var/run/docker.sock -p 3233:3233 -p 3232:3232 openwhisk/standalone:3e3414c
This works - I can stop / start the container.
But any deploys to openwhisk are not saved because there is no volume set up between the container and host. So I need to setup volumes. Where are namespace, actions, etc saved to in the container of openwhisk/standalone?