ubuntu 虚拟机群配置管理工具

　　在ubuntu下，如果想要统一的管理几台甚至几十台虚拟机可以用基于shell的virsh命令，以及基于图形界面的virt-manager, 他们都是利用libvirt提供的管理虚拟机的API进行了封装，具体的相关使用文档都可以从 http：//libvirt.org找到。

　　你可以方便在ubuntu上用apt-get来安装这两个工具，而不用担心依赖。

　　#apt-get install libvirt0 libvirt-bin libvirt-dev virt-manager

     http://www.2cto.com/os/201203/123128.html 该链接基本讲明白了如何用virsh工具方便简单的配置虚拟机启动参数，启动，关闭，挂起，唤醒虚拟机，并如何实现动态迁移。

每个虚拟机的启动都有自己的配置文件，用xml定义，下面是我的机器上的关于kvm，及uml虚拟机的配置脚本：

KVM xml （test1.xml）：

 <domain type="kvm">

  #change the vm id #all following configuration can be find with http://libvirt.org/formatdomain.html

  < name > test1 </ name >

  #change the vm name

  < uuid > 769aa9f5-dd35-4359-9d1a-b150de0df9bc </ uuid >

  #the unique uuid number,you can use uuidgen to produce one

  < memory > 524288 </ memory >

  #kB 512*1024kB

  < currentMemory > 524288 </ currentMemory >

  < vcpu > 1 </ vcpu >

- < os >

  < type arch =" x86_64 "> hvm </ type >

  < boot dev =" network " />

  </ os >

- < features >

  < acpi />

  < apic />

  < pae />

  </ features >

  < clock offset =" utc " />

  < on_poweroff > destroy </ on_poweroff >

  < on_reboot > restart </ on_reboot >

  < on_crash > restart </ on_crash >

- < devices >

  < emulator > /usr/bin/kvm </ emulator >

- < disk type =" file " device =" disk ">

  < driver name =" qemu " type =" qcow2 " cache =" none " />

  < source file =" /home/ljj/vmstuffs/ubuntu160.img " />

  #the img file location

  < target dev =" vda " bus =" virtio " />

  </ disk >

- < interface type =" bridge ">

  < source bridge =" virbr0 " />

  < target dev =" vnet0 " />

  < model type =" virtio " />

  </ interface >

- < serial type =" pty ">

  < source path =" /dev/pts/4 " />

  < target port =" 0 " />

  </ serial >

- < console type =" pty " tty =" /dev/pts/4 ">

  < source path =" /dev/pts/4 " />

  < target port =" 0 " />

  </ console >

  < input type =" mouse " bus =" ps2 " />

  < graphics type =" vnc " port =" 5900 " autoport =" yes " keymap =" en-us " />

  #configure the vnc monitor port

  </ devices >

  </ domain >

UML xml  (uml1.xml)    :

- < domain type =" uml ">

  < name > uml1 </ name >

  < uuid > ac4430e3-47bc-4d83-b2a8-04e268b9e254 </ uuid >

  < memory > 524288 </ memory >

  < currentMemory > 524288 </ currentMemory >

  < vcpu > 1 </ vcpu >

- < os >

  < type > uml </ type >

  < kernel > /root/libvirt+openvz+UML/uml/linux-2.6.24-rc7 </ kernel > //uml kernel location

  </ os >

- < devices >

- < disk type =" file " device =" disk ">

  < source file =" /root/libvirt+openvz+UML/uml/static_myrootfs.img " />  //rootfs location

  < target dev =" ubd0 " bus =" uml " />

  </ disk >

  < console type =" pty " />

- < interface type =" network ">

  < source network =" default " />

  < target dev =" tap0 " />

  </ interface >

  </ devices >

  </ domain >