Linux Cloud Automation Basics 15 (Basic operation of virtual machines)

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# # # #15. System Virtual Machine Management # # # #
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# # # #1. Installation # # #

#!/bin/bash # #命令运行环境的指定
Virt-install \ # #安装虚拟机
--name \ # #虚拟机名称指定, which represents the first string of characters after the script
--ram \ # #内存
--FILE/VAR/LIB/LIBVIRT/IMAGES/$1.IMG \ # #硬盘文件
--file-size 8 \ # #硬盘文件大小
--cdrom/var/ftp/pub/iso/rhel-server-7.1-x86_64-dvd.iso & # #安装源指定

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# # # #2. Manage # # # # # # #
virt-manager            # #开启图形管理工具
Virt-viewer vmname        # #显示虚拟机, Vmname represents the virtual machine name
Virsh list            # #列出正在运行的vm
Virsh list--all        # #列出所有vm
Virsh start vmname         # #运行指定vm
Virsh shutdown vmname        # #正常关闭指定vm
Virsh destroy vmname        # #强行结束指定vm
Virsh Create vmname.xml        # #临时恢复指定vm, Vmname represents the front end management file
Virsh define vmname.xml         # #永久恢复vm
Virsh undefine  vmname        # #删除vm的前端管理, storage not deleted

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# # # #3. Virtual Machine Snapshot # # #
Qemu-img create-f qcow2-b Vm2.qcow2 node1.qcow2


!/bin/bash
Virsh Destroy $ &>/dev/null
Virsh undefine $ &>/dev/null
Qemu-img create-f qcow2-b/var/lib/libvirt/images/$1.qcow2/var/lib/libvirt/images/$2.qcow2 &>/dev/null
Virt-install \
--name
--ram 1000 \
--DISK/VAR/LIB/LIBVIRT/IMAGES/$2.QCOW2 \
--import &>/dev/null &

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Linux Cloud Automation Basics 15 (Basic operation of virtual machines)