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python控制kvm

import libvirt
import tkinter as tk
import os

# 关闭连接
def close_connection():
    try:
        conn.close()
    except:
        print("--关闭连接失败--")
        return 1
    print('--成功关闭连接--')


# 显示主机信息
def list_connection():
    print("---------主机信息---------")
    nodeinfo = conn.getInfo()  # 获取虚拟化主机信息
    print('模型: ' + str(nodeinfo[0]))  # cpu模型
    print('内存大小: ' + str(nodeinfo[1]) + 'MB')  # 内存
    print('CPU数量: ' + str(nodeinfo[2]))  # cpu数量
    print('虚拟类型: ' + conn.getType())  # 虚拟化类型
    uri = conn.getURI()  # 目前链接的uri
    print('连接URI: : ' + uri)
    mem = conn.getFreeMemory()
    print("空闲内存: " + str(mem) + " bytes.")
    print("-------------------------")


# 显示虚拟机状态
def show_machine():
    # 开启的域
    vms_dict = {}
    domain_list = conn.listDomainsID()
    for vm in domain_list:
        vms_dict[str(vm)] = conn.lookupByID(vm).name()
    print("""
处于开启状态的虚拟机
----------------
ID	Name
----------------""")
    if vms_dict:
        for id_part, name_part in vms_dict.items():
            print("{}	{}".format(id_part, name_part))
        # lableInit.config(text="开启状态：".format(vms_dict))
    else:
        print("None")
    print("----------------")

    # 关闭的域
    global vmd_list
    vmd_list = []
    for i in conn.listDefinedDomains():
        vmd_list.append(i)
    print("""
处于关闭状态的虚拟机
----------------
Name
----------------""")
    if vmd_list:
        for name_part in vmd_list:
            print("{}".format(name_part))

    else:
        print("None")
    print("----------------")
    # lableInit.config(text="虚拟机信息已在终端显示")


# --------对虚拟机域进行 *** 作---------

def suspand():
    dom = conn.lookupByName(entryName.get())
    dom.suspend()
    print("虚拟机 {} 暂停成功".format(entryName.get()))


def resume():
    dom = conn.lookupByName(entryName.get())
    dom.resume()
    print("虚拟机 {} 运行成功".format(entryName.get()))


def start():
    dom = conn.lookupByName(entryName.get())
    dom.create()
    print("虚拟机 {} 启动成功".format(entryName.get()))



def shutdown():
    dom = conn.lookupByName(entryName.get())
    dom.shutdown()
    print("虚拟机 {} 关闭成功".format(entryName.get()))

def define():
    name=entryName.get()
    # os.system('sudo cd /var/lib/libvirt/images')
    # os.system('sudo qemu-img create -f qcow2 %s.qcow2 0.5G'%(name))
    os.system('sudo virt-install --connect qemu:///system --virt-type kvm --name %s --ram 1024 --vcpus 1 --network network=br0 --disk path=/var/lib/libvirt/images/%s.qcow2,size=1,format=qcow2 --cdrom /home/user/下载/CentOS-7-x86_64-DVD-2009.iso --noautoconsole'%(name,name))


def undefine():
    dom = conn.lookupByName(entryName.get())
    dom.undefine()
    dom.destroy()
    print("虚拟机 {} 已取消定义".format(entryName.get()))

# ------------菜单控制-------------
def test():
    name = str(entryName.get())
    print(name)


# --------------------------------
conn = libvirt.open("qemu:///system")  # 链接
window = tk.Tk(screenName=':0')
top = tk.Tk()
top.title("KVM Interface")
top.configure(background='Ivory')
# top.geometry('602x')#窗体大小
lableTitle = tk.Label(top, bg='Ivory', fg="#636F64", font='黑体 -24 bold', text="KVM Interface", width=46)
lableTitle.grid(row=0, column=0, columnspan=3, ipady=10)

#-------------------------------


labelHello = tk.Label(top,bg='Ivory',fg='saddlebrown',font = '黑体 -15 bold', text = "pelase choose a kvm:")
labelHello.grid(row=1,column=0,columnspan=2,ipady=10)

entryName=tk.Entry(top,width=24)
entryName.grid(row=1,column=1,padx=6,sticky='E')


#------- *** 作------

lableInitTitle = tk.Label(top,bg='Ivory',font = '黑体 -13 bold',text="enquiry：",width=85,fg="#636F64",justify="right")
lableInitTitle.grid(row=3,column=0,columnspan=2)

showHost = tk.Button(top, bg='moccasin', fg='saddlebrown', width=18, height=2, font='黑体 -15 bold', text="information",
                     command=list_connection)
showHost.grid(row=4, column=0, padx=40, pady=20, sticky='W')

showVM = tk.Button(top, bg='moccasin', fg='saddlebrown', width=18, height=2, font='黑体 -15 bold', text="state",
                   command=show_machine)
showVM.grid(row=4, column=1, padx=40, pady=20, sticky='W')

lableInitTitle = tk.Label(top, bg='Ivory', font='黑体 -13 bold', text="operation：", width=85, fg="#636F64",
                          justify="right")
lableInitTitle.grid(row=5, column=0, columnspan=2, ipady=20)


suspandVM = tk.Button(top, bg='moccasin', fg='saddlebrown', width=18, height=2, font='黑体 -15 bold', text="suspand",
                      command=suspand)
suspandVM.grid(row=6, column=0, padx=40, pady=20, sticky='W')

resumeVM = tk.Button(top, bg='moccasin', fg='saddlebrown', width=18, height=2, font='黑体 -15 bold', text="resume",
                     command=resume)
resumeVM.grid(row=7, column=0, padx=40, pady=20, sticky='W')

startVM = tk.Button(top, bg='moccasin', fg='saddlebrown', width=18, height=2, font='黑体 -15 bold', text="start",
                    command=start)
startVM.grid(row=6, column=1, padx=40, pady=20, sticky='W')

shutdownVM = tk.Button(top, bg='moccasin', fg='saddlebrown', width=18, height=2, font='黑体 -15 bold', text="shutdown",
                       command=shutdown)
shutdownVM.grid(row=7, column=1, padx=40, pady=20, sticky='W')

defineVM =tk.Button(top,bg='moccasin',fg='saddlebrown',width=18,height=2,font = '黑体 -15 bold',text="define",command=define)
defineVM.grid(row=6,column=2,padx=80,pady=40,sticky='E')

undefineVM =tk.Button(top,bg='moccasin',fg='saddlebrown',width=18,height=2,font = '黑体 -15 bold',text="undefine",command=undefine)
undefineVM.grid(row=7,column=2,padx=80,pady=40,sticky='E')



top.mainloop()