如何使用 Azure Powershell 更新 Azure 云服务设置答案

【问题标题】：How to update an Azure Cloud Service setting using Azure Powershell如何使用 Azure Powershell 更新 Azure 云服务设置
【发布时间】：2014-11-23 10:30:01
【问题描述】：

是否可以使用 Azure Powershell 更新 Azure 云服务中的设置值？

【问题讨论】：

标签： azure azure-web-roles

【解决方案1】：

到目前为止，还没有办法只更新一个设置（服务管理 API 不允许这样做 - 它只接受整个服务配置）。因此，为了更新单个设置，您必须更新整个配置。你可以用 PowerShell 做到这一点：

# Add the Azure Account first - this will create a login promppt
Add-AzureAccount 
# when you have more then one subscription - you have explicitly select the one 
# which holds your cloud service you want to update
Select-AzureSubscription "<Subscription name with spaces goes here>"
# then Update the configuration for the cloud service
Set-AzureDeployment -Config -ServiceName "<cloud_service_name_goes_here>" `
                    -Configuration "D:/tmp/cloud/ServiceConfiguration.Cloud.cscfg" `
                    -Slot "Production"

对于 `-Configuration' 参数，我提供了我想与我的云服务一起使用的新配置文件的完整本地路径。

这是经过验证且有效的解决方案。

【讨论】：

【解决方案2】：

正如 asaykov 所说，您无法使用 Powershell 更新单个云配置值。

但是您可以读取所有设置，更新您想要更改的设置，将其保存到临时文件，然后再次设置所有设置，如下所示：

UpdateCloudConfig.ps1：

param
(
    [string] $cloudService,
    [string] $publishSettings,
    [string] $subscription,
    [string] $role,
    [string] $setting,
    [string] $value
)

# param checking code removed for brevity

Import-AzurePublishSettingsFile $publishSettings -ErrorAction Stop | Out-Null

function SaveNewSettingInXmlFile($cloudService, [xml]$configuration, $setting, [string]$value)
{
    # get the <Role name="Customer.Api"> or <Role name="Customer.NewsletterSubscription.Api"> or <Role name="Identity.Web"> element
    $roleElement = $configuration.ServiceConfiguration.Role | ? { $_.name -eq $role }

    if (-not($roleElement))
    {
        Throw "Could not find role $role in existing cloud config"
    }

    # get the existing AzureServiceBusQueueConfig.ConnectionString element
    $settingElement = $roleElement.ConfigurationSettings.Setting | ? { $_.name -eq $setting }

    if (-not($settingElement))
    {
        Throw "Could not find existing element in cloud config with name $setting"
    }

    if ($settingElement.value -eq $value)
    {
        Write-Host "No change detected, so will not update cloud config"
        return $null
    }

    # update the value 
    $settingElement.value = $value

    # write configuration out to a file
    $filename = $cloudService + ".cscfg"
    $configuration.Save("$pwd\$filename")

    return $filename
}

Write-Host "Updating setting for $cloudService" -ForegroundColor Green

Select-AzureSubscription -SubscriptionName $subscription -ErrorAction Stop  

# get the current settings from Azure
$deployment = Get-AzureDeployment $cloudService -ErrorAction Stop

# save settings with new value to a .cscfg file
$filename = SaveNewSettingInXmlFile $cloudService $deployment.Configuration $setting $value

if (-not($filename)) # there was no change to the cloud config so we can exit nicely
{
    return
}

# change the settings in Azure
Set-AzureDeployment -Config -ServiceName $cloudService -Configuration "$pwd\$filename" -Slot Production

# clean up - delete .cscfg file
Remove-Item ("$pwd\$filename")

Write-Host "done"

【讨论】：