函数库链接地址：https://blog.csdn.net/anqixiang/article/details/89964048

#!/bin/bash
#AUTHOR:AN
#VERSION:1.1.0
#DATE:2019-04-19
#MODIFY:2019-05-06	2019-05-15
#DESCRIBE:连接KVM虚拟机，虚拟机初始密码为123456,设置IP地址,主机名
#PEOBLEM:1.检测网卡是否存在

######################定义变量######################
Nfs_Dir=/cloud_nsd				#NFS共享目录
Script_Path=$Nfs_Dir/shell		#脚本路径
Kvm_Pwd=123456					#虚拟机密码

#加载函数库
if [ -f "$Script_Path/myfunction.lib" ];then
 	source $Script_Path/myfunction.lib 
else
	echo -e "\033[31m函数库不存在\033[0m" && exit $NOEXIST	
fi

#添加网卡,并设置主机名和IP地址
ADD_NIC(){
	YUM expect
	expect << EOF
	spawn virsh console $1
	expect " "		{send "\r"}
	expect ":"		{send "root\r"}
	expect "密码："	{send "$Kvm_Pwd\r"}
	expect "#"		{send "hostnamectl set-hostname $3\r"}
	expect "#"		{send "nmcli connection add type ethernet con-name $2 ifname $2\r"}
	expect "#"		{send "nmcli connection modify $2 ipv4.method manual ipv4.addresses $4 connection.autoconnect yes\r"}
	expect "#"		{send "nmcli connection up $2 \r"}
	expect "#"		{send "exit\r"}	
EOF
}

#配置IP地址
CONF_IP(){
	YUM expect	
	expect << EOF
	spawn virsh console $1
	expect " "		{send "\r"}
	expect ":"		{send "root\r"}
	expect "密码："	{send "$Kvm_Pwd\r"}
	expect "#"		{send "hostnamectl set-hostname $2\r"}	
	expect "#"		{send "nmcli connection modify $3 ipv4.method manual ipv4.addresses $4 connection.autoconnect yes\r"}
	expect "#"		{send "nmcli connection up $3 \r"}
	expect "#"		{send "exit\r"}
EOF
}

#帮助信息
HELP(){
	cat << EOF
virsh_ip version 1.1.0
Usage: virsh_ip [-h] [-a 虚拟机编号 网卡名] 
		[-num 虚拟机编号 主机名 网卡名 IP地址]
=======================================================================
optional arguments:
	-h		提供帮助信息
	-num		虚拟机编号
	-a		添加网卡
EXAMPLE:
	bash virsh_ip.sh -num 10 web1 eth0 192.168.4.1/24	
	bash virsh_ip.sh -a 10 eth1 web1 192.168.4.1/24
EOF
}

#############################主程序#############################

[ $# -eq 0 ] && HELP
while getopts :hnum::a: ARGS
do
	case $ARGS in
	h)
		HELP;;
	nu|m)
		Name=rh7_node$OPTARG	#KVM虚拟机名字
		CONF_IP $Name $3 $4 $5;; 	
	a)
		Name=rh7_node$OPTARG
		ADD_NIC $Name $3 $4 $5;;
	\?)
		cecho 31 "Invalid option:bash `basename $0` [-h]"
	esac
done