lxc allow you to take snapshot, restore snapshot of a container.
Here we create a snapshot, then delete the /etc folder from the container. Now the container is useless. Restore the container from snapshot to get it work again.
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root@UNUSED:~# lxc snapshot my-vm-2 my-vm-2-snap1 root@UNUSED:~# lxc exec my-vm-2 -- rm -rf /etc root@UNUSED:~# lxc exec my-vm-2 -- bash I have no name!@my-vm-2:~# ls -l / | grep etc I have no name!@my-vm-2:~# exit root@UNUSED:~# lxc restore my-vm-2 my-vm-2-snap1 root@UNUSED:~# lxc exec my-vm-2 -- bash root@my-vm-2:~# ls -l / | grep etc drwxr-xr-x 89 root root 4096 Aug 27 07:06 etc root@my-vm-2:~# exit root@UNUSED:~# |