How to backup / export a cluster complete

I m using a Rancher 1.6 and a 2.4 installation for testing.
All nodes are virtual and a full
backup is written every day.
My problem:
How can I export a complete cluster inc. all datas so that this cluster could be imported somewhere else.
The easy way would be to transfer all VMs but that isn t a solution if VMs aren t used in the target network.
Is the a simple one line cmd for backup and restore and is as a second question does a gui-based backup-tool exist users not working every day with rancher/ kubernetes.