When using the single node installation?, the persistent data is kept on the /var/lib/rancher path in the container.

To keep data on the host, you can bind mount a host volume to a location using the following command:

$ docker run -d --restart=unless-stopped 
 -p 80:80 -p 443:443 
 -v /opt/rancher:/var/lib/rancher 
 -v /var/log/rancher/auditlog:/var/log/auditlog 
 rancher/rancher:latest 

Bind mounts have limited functionality compared to volumes. When Rancher is started using the bind mount, a directory on the host machine will be mounted to the specified directory in the container.