用于在 Azure Web 应用程序上重新启动高级应用程序的 Powershell [英] Powershell for an Advanced Application Restart on an Azure Web App
问题描述
可以使用 Restart- Azure Rm Web App PowerShell 重新启动 Web 应用程序,但这将同时重新启动计划中的所有服务器,从而缩短停机时间.
It is possible to use Restart-AzureRmWebApp PowerShell to restart a web app but this will restart all servers in the plan simultaneously, giving a short downtime.
Azure 门户具有高级应用程序重启"功能,该功能使用重启各个实例之间的时间延迟.
The Azure Portal has an "Advanced Application Restart" feature that uses a time delay between restarting individual instances.
有没有办法从 PowerShell 调用它?
Is there any way to invoke that from PowerShell?
推荐答案
根据您的描述,我建议您可以先在您的Web 应用程序中使用Get-AzureRmResource 命令找到每个实例的进程.然后你可以使用 Remove-AzureRmResource 来停止这些进程.然后当您访问 azure web 应用程序时,azure 会自动创建新实例的进程来运行您的应用程序.
According to your description, I suggest you could firstly find each instance's process in your web app by using Get-AzureRmResource command. Then you could use Remove-AzureRmResource to stop these processes. Then when you access the azure web application, azure will automatic create new instance's process to run your application.
更多细节,你可以参考下面的powershell代码:
More details, you could refer to below powershell codes:
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
}
}
}
}
}
结果:
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