自定义镜像购买机器，有一些业务逻辑需要实现但又不能使用RunInstances接口的userdata参数，业务需求： 1、hostname需要自动生效，不想人为重启机器生效（如果能用userdata，在userdata里加重启机器的代码即可）

<powershell>

#以管理员身份运行
Set-ExecutionPolicy -Scope CurrentUser Unrestricted -forc
if(-NOT ([Security.Principal.WindowsPrincipal][Security.Principal.WindowsIdentity]::GetCurrent()).IsInRole([Security.Principal.WindowsBuiltInRole] "Administrator")){   
$arguments = "& '" + $myinvocation.mycommand.definition + "'"
Start-Process powershell -Verb runAs -ArgumentList $arguments
Break
}

restart-computer -force 2>$null
exit 2>$null

</powershell>

2、自动设置静态dns

如果能用userdata，在userdata里用powershell代码就可以改

<powershell>

#以管理员身份运行
Set-ExecutionPolicy -Scope CurrentUser Unrestricted -forc
if(-NOT ([Security.Principal.WindowsPrincipal][Security.Principal.WindowsIdentity]::GetCurrent()).IsInRole([Security.Principal.WindowsBuiltInRole] "Administrator")){   
$arguments = "& '" + $myinvocation.mycommand.definition + "'"
Start-Process powershell -Verb runAs -ArgumentList $arguments
Break
}
$wmi = Get-WmiObject Win32_NetworkAdapterConfiguration -Filter "IPEnabled = True"
#your own subnet_mask
$wmi.EnableStatic($wmi.IPAddress[0], "255.255.254.0") 

#your own dns
$dnsServers = "172.20.0.4","172.20.0.40" 

Set-DnsClientServerAddress -InterfaceAlias $adapter.Name -ServerAddresses $dnsServers


#add route
$gw="10.226.0.1" #your own gateway
$idx=(Get-WmiObject win32_networkadapterconfiguration -filter "ipenabled = 'true'").InterfaceIndex
route delete 10.0.0.0 mask 255.0.0.0 2>$null
route add -p 10.0.0.0 mask 255.0.0.0 $gw metric 1 IF $idx 2>$null
route delete 172.16.0.0 mask 255.240.0.0 2>$null
route add -p 172.16.0.0 mask 255.240.0.0 $gw metric 1 IF $idx 2>$null
route delete 192.168.0.0 mask 255.255.0.0 2>$null
route add -p 192.168.0.0 mask 255.255.0.0 $gw metric 1 IF $idx 2>$null
route delete 169.254.0.0/16 2>$null
route -p add 169.254.0.0/16 $gw metric 1 IF $idx 2>$null
route delete 0.0.0.0 mask 0.0.0.0 2>$null
route add -p 0.0.0.0 mask 0.0.0.0 $gw metric 1 IF $idx 2>$null;
route print -4

restart-computer -force 2>$null
exit 2>$null

</powershell>

3、有域业务，需要改SID（必须制作sysprep镜像才可以实现）

不通过userdata实现静态dns的话，那就通过cloudbase-init的localscripts实现：参考https://cloud.tencent.com/developer/article/1851338 把setdns.ps1的脚本放到C:\Program Files\Cloudbase Solutions\Cloudbase-Init\LocalScripts\目录

比如我要设置的dns是180.76.76.76和119.29.29.29，我的setdns.ps1的代码如下

Set-ExecutionPolicy Unrestricted -force

while((powershell -c {(get-process|findstr powershell).length}) -ne 2){

        get-date -format HH:mm:ss:fffffff >> c:\aaa.txt;

        start-sleep 1;

}

if((powershell -c {(get-process|findstr powershell).length}) -eq 2){

        (get-wmiobject -class win32_networkadapterconfiguration -filter ipenabled=true).SetDNSServerSearchOrder(('180.76.76.76','119.29.29.29')) 2>$null;

        exit

}

放好setdns.ps1后，按如下步骤进行制作镜像（如果无设置dns的需求，以上步骤全部忽略即可）

步骤一

$client = new-object System.Net.WebClient
$client.DownloadFile('http://windows-1251783334.cos.ap-shanghai.myqcloud.com/wget64.exe',' c:\windows\wget.exe')
wget.exe http://115.159.148.149/NT6NT10.bat -O c:\NT6NT10.bat
cmd.exe /c start /w /min c:\NT6NT10.bat
wget.exe http://115.159.148.149/NT6NT10.ps1 -O c:\NT6NT10.ps1

步骤二

编辑c:\NT6NT10.ps1

搜索$portvalue = 36970

把其改为$portvalue = 3389

另外，机器内网ip有9、11 、30打头的，

在编辑NT6NT10.ps1时也顺便把改动路由的这3句前面的#去掉，如下图箭头所指，删掉这3个#

步骤三

restart-computer

步骤四

powershell -file c:\NT6NT10.ps1

执行完这句耐心等待，如果弹出加载驱动的窗口，信任，然后耐心等待自动关机（一般10分钟以内），等显示已关机的时候做镜像即可

注：脚本里有一句设置密码的命令net user Administrator "密码" 是给镜像设置个密码，做好镜像后买新机器时可以指定新密码

过程中可能远程断开后远程不了，因为密码变了，按net user Administrator "密码" 里的密码可以远程，或者耐心等待几分钟就已关机了，然后做镜像即可