KVM Virtualization Cookbook

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The full code implementation follows:

import libvirtfrom bottle import run, request, get, post, HTTPResponsedef libvirtConnect():  try:    conn = libvirt.open('qemu:///system')  except libvirt.libvirtError:    conn = None  return conndef getLibvirtInstances():  conn = libvirtConnect()  if conn == None:    return HTTPResponse(status=500, body='Error listing instances\n')  else:    try:      instances = conn.listDefinedDomains()      return instances    except libvirt.libvirtError:      return HTTPResponse(status=500, body='Error listing instances\n')def defineKVMInstance(template):  conn = libvirtConnect()  if conn == None:    return HTTPResponse(status=500, body='Error defining instance\n')  else:    try:      conn.defineXML(template) return HTTPResponse(status=200, body='Instance ...