kvm创建快照与还原

• 对k8s-m1虚拟机创建快照

virsh snapshot-create as k8s-m1 20190317

• 查看虚拟机镜像快照的版本

virsh snapshot-list k8s-m1

或者

qemu-img info /opt/kvm/images/k8s-m1.qcow2

• 还原虚拟机快照

virsh  snapshot-revert k8s-m1 20190317