Question

我们正在运行一个包含3个实例的WebApp。我们想在晚上单独重启这些实例。我试图找到一个Powershell或REST API解决方案与cron作业一起工作，但我只是提出了重启整个WebApp的解决方案。

我们知道重启它们的手动过程（下面的屏幕截图链接），但我们希望自动化该过程。

Answer 1

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

根据您的说明，我建议您首先使用Get-AzureRmResource命令在您的网络应用中查找每个实例的流程。然后，您可以使用Remove-AzureRmResource来停止这些过程。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以运行您的应用程序。

更多细节，您可以参考下面的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
                }
            }       
       }

    }
}

Answer 2

如果您正在查看Windows Azure PowerShell Cmdlet，您要使用的命令是Reset-AzureRoleInstance（http://msdn.microsoft.com/en-us/library/jj152835.aspx）

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

2 个答案: