Rest 使用Powershell并调用WebRequest将2.5 GB上载到web服务器

我是一名网络工程师，没有任何脚本或powershell方面的背景，但我最近开始处理它，因为我需要创建两个脚本。我为VMware工作，希望创建一个脚本来自动升级NSX环境，第一步是将升级包上载到NSX Manager（最后是一个web服务器）。 从NSX（）的API指南中，您应该使用下面的API上传升级包帖子 因此，我正在尝试创建一个脚本，该脚本将首先要求您升级到所需的版本，并在此基础上将文件路径放入一个变量中，然后使用invoke webrequest和参数-infle上传升级包

但是，当我这样做时，上载过程开始，但在几分钟后，我总是收到以下错误（调用WebRequest：基础连接已关闭：发送时发生意外错误。）

经过一些搜索后，我了解到invoke webrequest将首先缓冲2.5GB的文件，然后上载它，这可能就是为什么连接会关闭，因为NSX管理器尚未收到任何内容

我还了解到，我可以使用以下方法禁用缓冲（作为示例）： $webRequest.AllowWriteStreamBuffering=$false $webRequest.SendChunked=$true

但是，我不知道如何将此添加到脚本中

以下是我目前的完整脚本： PS：我使用的powershell版本是5

[CmdletBinding()]
$NSXUsername = "admin"
$NSXPassword = "VMware1!"
$uriP = "https://HQ-NSX-01a.nsx.gss"


# Start time.
$startclock = (Get-Date)
Write-Host -BackgroundColor:Black -ForegroundColor:Green "Hello"
Write-Host -BackgroundColor:Black -ForegroundColor:Green "This script will help you to automate a full NSX environment UPgrade"
Write-Host -BackgroundColor:Black -ForegroundColor:Green "FULL NSX Tier UPgrade for Single-VC is starting, This UPgrade proccess will take an average of 40 min
========================================================================================
                                 "




# Create NSX authorization string and store in $head and used in API Calls
# $nsxcreds = New-Object System.Management.Automation.PSCredential $NSXUsername,$NSXPassword
$auth = [System.Convert]::ToBase64String([System.Text.Encoding]::UTF8.GetBytes($NSXUsername + ":" + $NSXPassword))
$head = @{"Authorization"="Basic $auth"}

# Allow untrusted SSL certs else will error out
    add-type @"
        using System.Net;
        using System.Security.Cryptography.X509Certificates;
        public class TrustAllCertsPolicy : ICertificatePolicy {
            public bool CheckValidationResult(
                ServicePoint srvPoint, X509Certificate certificate,
                WebRequest request, int certificateProblem) {
                return true;
            }
        }
"@
    [System.Net.ServicePointManager]::CertificatePolicy = New-Object TrustAllCertsPolicy

##################################################
# Choosing the required NSX Version to be deployed
##################################################

[int]$menuoptions = 0
while ( $menuoptions -lt 1 -or $menuoptions -gt 12 ) {
Write-host -BackgroundColor:Black -ForegroundColor:Red "    Please choose the required version of NSX to be deployed (Accepted inputs are a number from 1 to 12)                    "
Write-host -BackgroundColor:Black -ForegroundColor:Yellow "     1.NSX-6.2.0 "
Write-host -BackgroundColor:Black -ForegroundColor:Yellow "     2.NSX-6.2.1 "
Write-host -BackgroundColor:Black -ForegroundColor:Yellow "     3.NSX-6.2.1a    "
Write-host -BackgroundColor:Black -ForegroundColor:Yellow "     4.NSX-6.2.2 "
Write-host -BackgroundColor:Black -ForegroundColor:Yellow "     5.NSX-6.2.2a    "
Write-host -BackgroundColor:Black -ForegroundColor:Yellow "     6.NSX-6.2.2b    "
Write-host -BackgroundColor:Black -ForegroundColor:Yellow "     7.NSX-6.2.3 "
Write-host -BackgroundColor:Black -ForegroundColor:Yellow "     8.NSX-6.2.3a    "
Write-host -BackgroundColor:Black -ForegroundColor:Yellow "     9.NSX-6.2.3b    "
Write-host -BackgroundColor:Black -ForegroundColor:Yellow "     10.NSX-6.2.4    "
Write-host -BackgroundColor:Black -ForegroundColor:Yellow "     11.NSX-6.2.5    "
Write-host -BackgroundColor:Black -ForegroundColor:Yellow "     12.NSX-6.3.6    "
[int]$menuoptions = read-host
if ($menuoptions -lt 1 -or $menuoptions -gt 12) {Write-host -BackgroundColor:Black -ForegroundColor:Red "       Invalid Input Detected, Please choose a valid input"}
}
Switch( $menuoptions ) {
1{$nsxpath = "D:\NSX-6.2.x-UPGrade-Bundles\VMware-NSX-Manager-upgrade-bundle-6.2.0-2986609.tar.gz"}
2{$nsxpath = "D:\NSX-6.2.x-UPGrade-Bundles\VMware-NSX-Manager-upgrade-bundle-6.2.1-3300239.tar.gz"}
3{$nsxpath = "D:\NSX-6.2.x-UPGrade-Bundles\VMware-NSX-Manager-upgrade-bundle-6.2.1a-3496286.tar.gz"}
4{$nsxpath = "D:\NSX-6.2.x-UPGrade-Bundles\VMware-NSX-Manager-upgrade-bundle-6.2.2-3604087.tar.gz"}
5{$nsxpath = "D:\NSX-6.2.x-UPGrade-Bundles\VMware-NSX-Manager-upgrade-bundle-6.2.2a-3638734.tar.gz"}
6{$nsxpath = "D:\NSX-6.2.x-UPGrade-Bundles\VMware-NSX-Manager-upgrade-bundle-6.2.2b-3755950.tar.gz"}
7{$nsxpath = "D:\NSX-6.2.x-UPGrade-Bundles\VMware-NSX-Manager-upgrade-bundle-6.2.3-3979471.tar.gz"}
8{$nsxpath = "D:\NSX-6.2.x-UPGrade-Bundles\VMware-NSX-Manager-upgrade-bundle-6.2.3a-4167369.tar.gz"}
9{$nsxpath = "D:\NSX-6.2.x-UPGrade-Bundles\VMware-NSX-Manager-upgrade-bundle-6.2.3b-4287432.tar.gz"}
10{$nsxpath = "D:\NSX-6.2.x-UPGrade-Bundles\VMware-NSX-Manager-upgrade-bundle-6.2.4-4292526.tar.gz"}
11{$nsxpath = "D:\NSX-6.2.x-UPGrade-Bundles\VMware-NSX-Manager-upgrade-bundle-6.2.5-4818372.tar.gz"}
12{$nsxpath = "D:\NSX-6.2.x-UPGrade-Bundles\VMware-NSX-Manager-upgrade-bundle-6.2.6-4977495.tar.gz"}
}

Switch( $menuoptions ) {
1{$nsxversion = "NSX-6.2.0"}
2{$nsxversion = "NSX-6.2.1"}
3{$nsxversion = "NSX-6.2.1a"}
4{$nsxversion = "NSX-6.2.2"}
5{$nsxversion = "NSX-6.2.2a"}
6{$nsxversion = "NSX-6.2.2b"}
7{$nsxversion = "NSX-6.2.3"}
8{$nsxversion = "NSX-6.2.3a"}
9{$nsxversion = "NSX-6.2.3b"}
10{$nsxversion = "NSX-6.2.4"}
11{$nsxversion = "NSX-6.2.5"}
12{$nsxversion = "NSX-6.3.6"}
}


#===========================================================================================================================================    
#===========================================================================================================================================    


#########################
# Upgrading NSX Manager
#########################

    Write-Host -BackgroundColor:Black -ForegroundColor:Green "1. Deploying NSX Manager with version $nsxversion"

    Write-Host -BackgroundColor:Black -ForegroundColor:Yellow "     UPloading the required upgrade bundel to NSX Manager"


$r = Invoke-WebRequest -Uri "$uriP/api/1.0/appliance-management/upgrade/uploadbundle/NSX" -Method:Post -Headers $head -ContentType "application/xml" -InFile $nsxpath -TimeoutSec 66000 -DisableKeepAlive 

任何想法都将非常有帮助，非常感谢

---

谢谢你的帮助。

我想以前有人问过这样的问题：

建议的解决方案似乎是使用[System.Net.HttpWebRequest].Net类

我还没有对此进行测试，但我认为您可以用以下内容替换

$r=Invoke WebRequest

：

$webRequest = [System.Net.HttpWebRequest]::Create("$uriP/api/1.0/appliance-management/upgrade/uploadbundle/NSX")
$webRequest.Timeout = 66000
$webRequest.Method = "POST"
$webRequest.ContentType = "application/xml"
$webRequest.AllowWriteStreamBuffering=$false
$webRequest.SendChunked=$true
$webRequest.Credentials = $auth
$webRequest.Headers["Authorization"] = "Basic $auth"

$requestStream = $webRequest.GetRequestStream()
$fileStream = [System.IO.File]::OpenRead($nsxpath)
$chunk = New-Object byte[] $bufSize
  while( $bytesRead = $fileStream.Read($chunk,0,$bufsize) )
  {
    $requestStream.write($chunk, 0, $bytesRead)
    $requestStream.Flush()
  }

$responseStream = $webRequest.getresponse()

$FileStream.Close()
$requestStream.Close()
$responseStream.Close()

$responseStream
$responseStream.GetResponseHeader("Content-Length") 
$responseStream.StatusCode

---

马克，非常感谢你的帮助。我以前尝试过这一点，但是在您的帮助下，我能够更好地理解它，但是我面临着一个问题，因为当脚本到达带有“3”参数的while循环“Exception calling”Write”时，我遇到了以下错误：无法将数据写入传输连接：远程主机强制关闭了一个现有连接。“这与脚本的这一部分有关：while（$bytesRead=$fileStream.Read（$chunk，0，$bufsize））{$requestStream.write（$chunk，0，$bytesRead）$requestStream.Flush（）}