#查看所有虚拟机
virsh list --all
#查看某个虚拟机的配置，xml形式输出
virsh dumpxml vm_name | less
virsh dumpxml ubuntu20.04-clone | less
#查看某个虚拟机指定信息
virsh dumpxml ubuntu20.04-clone | grep -i "MEMORY"
#查看磁盘目录路径
virsh dumpxml ubuntu20.04-clone | grep -i "source"
#查看所有虚拟机的磁盘目录路径
#!/bin/bash
VM_NAMES=($(virsh list --all| awk '(NR>2)' | awk '{ print $2 }'))
for VM in ${VM_NAMES[@]}; do
DISK_PATH=$(virsh dumpxml ${VM} | grep -i " /path/to/xm_file.xml
virsh dumpxml ubuntu20.04-clone > ~/Documents/ubuntu.xml
sudo cp /var/lib/libvirt/images/ubuntu20.04-clone.qcow2 ~/Documents/
#导入kvm虚拟机
#重新定义一个虚拟机
virsh define --file
virsh define –file ~/Documents/ubuntu.xml
sudo cp ~/Documents/ubuntu20.04-clone.qcow2 /var/lib/libvirt/images/
#shell脚本
#!/bin/bash
#!/usr/bin/env bash
# ----------------------------------------------------------------------------------------------------
# AUTHOR : KARTHICK S
# PURPOSE : THIS SCRIPT WILL EXPORT/IMPORT THE CONFIG AND VM DISK.
#
# usage:
# export function will take care of exporting the necessary for all VM. Run as " export"
# import function will take care of importing the necessary for all VM. Run as " import"
#
# NOTE: Do not add trailing / for the directory when giving export and import path.
#------------------------------------------------------------------------------------------------------
# Trigger the script with root user or exit.
if [[ ${UID} -ne 0 ]]; then
echo -e "[EXIT] - Run the script as root user or with sudo privilege..."
exit
fi
function export_vm(){
# Get the export location.
read -p "Provide the directory path where disk and config files to be exported: " EXPORT_LOCATION
# Create the destination directory if not exists.
[[ -d ${EXPORT_LOCATION} ]] || mkdir -p ${EXPORT_LOCATION}
# Exporting the config using virsh dumpxml command.
VM_NAMES=($(virsh list --all| awk '(NR>2)' | awk '{ print $2 }'))
for VM in ${VM_NAMES[@]}; do
virsh dumpxml ${VM} > ${EXPORT_LOCATION}/${VM}.xml
done
# Using rsync copy the entire directory from default location.
echo -e "n[ Copying disk images ]n" && sudo rsync -avxp --progress /var/lib/libvirt/images ${EXPORT_LOCATION}
echo -e "n[ Exported Files ] n" && ls -lR ${EXPORT_LOCATION}
}
function import_vm(){
# Get the source location.
read -p "Provide the directory path where disk and config files are stored: " SOURCE_LOCATION
# Throws error if directory is not available and exit.
[[ -d ${SOURCE_LOCATION} ]] || { echo "Directory not available"; exit 1 ; }
# Copy all the files to default disk location.
echo -e "[ Copying disk images ]n" && sudo rsync -avxp --progress ${SOURCE_LOCATION}/images /var/lib/libvirt/
if [[ $? -eq 0 ]]; then
# Define VM
echo -e "n[ Defining VM ]n"
for XML_FILE in ${SOURCE_LOCATION}/*.xml; do
virsh define --file ${XML_FILE}
done
echo -e "n[ Imported VM List ]n" && virsh list --all
fi
}
case $1 in
export ) export_vm ;;
import ) import_vm ;;
*) echo -e "USAGE :
kvm_export_import.sh export - Export config and disk
kvm_export_import.sh import - Define VM and copy the disk"; exit
esac
