powershell - Azure WebApp - 如何使用 Powershell 或 API 重新启动单个实例

Question

我们正在运行一个具有 3 个实例的 Web 应用程序。我们希望在晚上单独重新启动这些实例。我试图找到一个 Powershell 或 REST API 解决方案来与 cron 作业配合使用，但我只是想出重新启动整个 WebApp 的解决方案。

我们知道重新启动它们的手动过程(下面的屏幕截图链接)，但我们希望自动化该过程。

Screenshot link.jpg

Answer 1

是的，您可以使用 Azure Power Shell 来执行此操作，请检查此 answer .

根据您的描述，我建议您首先使用Get-AzureRmResource命令在您的Web应用程序中找到每个实例的进程。然后您可以使用 Remove-AzureRmResource 来停止这些进程。然后，当您访问azure Web应用程序时，azure将自动创建新实例的进程来运行您的应用程序。

更多详细信息，您可以引用以下powershell代码:

Login-AzureRmAccount
Select-AzureRmSubscription -SubscriptionId '{your subscriptionid}'

$siteName = "{sitename}"
$rgGroup = "{groupname}" 

$webSiteInstances = @()

#This gives you list of instances
$webSiteInstances = Get-AzureRmResource -ResourceGroupName $rgGroup -ResourceType Microsoft.Web/sites/instances -ResourceName $siteName -ApiVersion 2015-11-01 

$sub = (Get-AzureRmContext).Subscription.SubscriptionId 

foreach ($instance in $webSiteInstances)
{
    $instanceId = $instance.Name
    "Going to enumerate all processes on {0} instance" -f $instanceId 

    # This gives you list of processes running
    # on a particular instance
    $processList =  Get-AzureRmResource `
                    -ResourceId /subscriptions/$sub/resourceGroups/$rgGroup/providers/Microsoft.Web/sites/$sitename/instances/$instanceId/processes `
                    -ApiVersion 2015-08-01 

    foreach ($process in $processList)
    {               
        if ($process.Properties.Name -eq "w3wp")
        {            
            $resourceId = "/subscriptions/$sub/resourceGroups/$rgGroup/providers/Microsoft.Web/sites/$sitename/instances/$instanceId/processes/" + $process.Properties.Id            
            $processInfoJson = Get-AzureRmResource -ResourceId  $resourceId  -ApiVersion 2015-08-01                                     

            # is_scm_site is a property which is set
            # on the worker process for the KUDU 

                $computerName = $processInfoJson.Properties.Environment_variables.COMPUTERNAME

                if ($processInfoJson.Properties.is_scm_site -ne $true)
            {
                $computerName = $processInfoJson.Properties.Environment_variables.COMPUTERNAME
                "Instance ID" + $instanceId  + "is for " +   $computerName

                "Going to stop this process " + $processInfoJson.Name + " with PID " + $processInfoJson.Properties.Id

                # Remove-AzureRMResource finally STOPS the worker process
                $result = Remove-AzureRmResource -ResourceId $resourceId -ApiVersion 2015-08-01 -Force 

                if ($result -eq $true)
                { 
                    "Process {0} stopped " -f $processInfoJson.Properties.Id
                }
            }       
       }

    }
}