powershell - 在 PowerShell 中创建网络场

Question

我正在尝试在 PowerShell 中自动创建服务器场。通过手动创建，我得到了以下 XML:

<webFarms>
    <webFarm name="alwaysup" enabled="true">
        <server address="alwaysup-blue" enabled="true">
            <applicationRequestRouting httpPort="8001" />
        </server>
        <server address="alwaysup-green" enabled="true">
            <applicationRequestRouting httpPort="8002" />
        </server>
        <applicationRequestRouting>
            <healthCheck url="http://alwaysup/up.html" interval="00:00:05" responseMatch="up" />
        </applicationRequestRouting>
    </webFarm>
    <applicationRequestRouting>
        <hostAffinityProviderList>
            <add name="Microsoft.Web.Arr.HostNameRoundRobin" />
        </hostAffinityProviderList>
    </applicationRequestRouting>
</webFarms>

然而，尝试通过 PS 执行此操作会很麻烦:据我所知，没有专门的 API 可以通过此执行此操作( WebFarmSnapin 用于旧版本)。

我已将注意力转移到 IIS Administration Cmdlets但只工作了一半。

我拥有的代码:

#####
# Overwriting the server farm
#####

Write-Host "Overwriting the server farm $($webFarmName)"

$webFarm = @{};
$webFarm["name"] = 'siteFarm'

Set-WebConfiguration "/webFarms" -Value $webFarm

#####
# Adding the servers
#####

Write-Host "Adding the servers"

$blueServer = @{}
$blueServer["address"] = 'site-blue'
$blueServer["applicationRequestRouting"] = @{}

$greenServer = @{}
$greenServer["address"] = 'site-green'
$greenServer["applicationRequestRouting"] = @{}

$servers = @($blueServer, $greenServer)

Add-WebConfiguration -Filter "/webFarms/webFarm[@name='siteFarm']" -Value $servers

#####
# Adding routing
#####

Write-Host "Adding the routing configurations"

$blueServerRouting = @{}
$blueServerRouting["httpPort"] = "8001"
Add-WebConfiguration -Filter "/webFarms/webFarm[@name='siteFarm']/server[@address='site-blue']" -Value $blueServerRouting

这会产生

<webFarms>
    <webFarm name="siteFarm">
        <server address="site-blue" />
        <server address="site-green" />
    </webFarm>
    <applicationRequestRouting>
        <hostAffinityProviderList>
            <add name="Microsoft.Web.Arr.HostNameRoundRobin" />
        </hostAffinityProviderList>
    </applicationRequestRouting>
</webFarms>

如您所见，它缺少与路由相关的端口。在这一点上，我什至还没有开始尝试添加健康检查。

我究竟做错了什么？是否有一些我没有找到的 Cmdlet 使这更容易？

Related但没有太多有用的答案(带有生成代码的 PowerShell 选项卡保持为空)。

Answer 1

我一直在研究这个，我发现你可以使用 Microsoft.Web.Administration在 Powershell 中完成此操作。

Add-Type -AssemblyName "Microsoft.Web.Administration, Version=7.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL"

$iisManager = New-Object Microsoft.Web.Administration.ServerManager
$applicationHostConfig = $IISManager.GetApplicationHostConfiguration()

# Get the WebFarms section. Section names are case-sensitive.
$webFarmSection = $ApplicationHostConfig.GetSection("webFarms")
$webFarms = $WebFarmSection.GetCollection()

# Create a new webfarm and assign a name.
$webFarm = $WebFarms.CreateElement("webFarm")
$webFarm.SetAttributeValue("name", "MyNewWebFarmName")
# Add it to the parent element
$webFarms.Add($webFarm)
# get Webfarm server collection
$servers = $webFarm.GetCollection()
# add server
$serverBlue = $servers.CreateElement("server")
$routingBlue = $serverBlue.GetChildElement("applicationRequestRouting")
$routingBlue.SetAttributeValue("httpPort", "8001")
$serverBlue.SetAttributeValue("address", "MyNewWebFarmName-blue")
$servers.Add($serverBlue)
# Save changes
$iisManager.CommitChanges()

有两件事很重要:

一旦您调用 $iisManager.CommitChanges()然后对象进入只读模式。在进行任何新更改之前，您需要重新实例化所有对象。

如果您决定在您的网络场中创建一个新服务器，如果您为服务器分配一个名称然后尝试访问其端口设置，您将遇到问题。您需要做的是先分配端口，然后分配名称以及是否启用/禁用。否则，它会抛出 System.AccessViolationException: Attempted to read or write protected memory.错误。

让我知道事情的后续!