通过上一篇的简介,相信各位对于简单的创建alert,以及Azure monitor使用以及大概有个印象了。基础的使用总是非常简单的,这里再分享一个常用的alert使用方法
实际工作中,不管是日常运维还是做项目,我们都需要知道VM的实际性能情况,避免出现性能瓶颈,因此创建alert是一种非常方便的方式,我们可以通过alert第一时间知道系统出现了性能的瓶颈,以便尽快采取解决措施。
因此,也衍生了一个实际的问题,单独为一台VM开启alert很简单,但是如果我们需要为一个资源组内十几甚至几十上百台VM统一创建alert,则会非常麻烦
在这里分享一个自己写的简单脚本,可以通过批量的方式为一个资源组内的所有VM,或者是某个单独的VM创建alert,省去很多不必要的重复性工作,以下是代码的内容
<# .NOTES =========================================================================== Created with: SAPIEN Technologies, Inc., PowerShell Studio 2017 v5.4.134 Created on: 2019/1/10 13:19 Created by: mxy Organization: Filename: =========================================================================== .DESCRIPTION A description of the file. #> param ( [parameter(Mandatory = $true)] [string]$RGName,#资源组名称 [parameter(Mandatory = $false)] [string]$VmName,#VM名称 [parameter(Mandatory = $true)] [string]$MailAddress,#邮件地址 [parameter(Mandatory = $false)] [ValidateSet("CPU", "Memory")] [string]$Metric = "CPU",#需要针对哪个metric创建alert,方便起见这里目前只是设置了CPU和内存两种 [parameter(Mandatory = $false)] [ValidateSet("GreaterThan", "GreaterThanOrEqual", "LessThan", "LessThanOrEqual")] [string]$Operation = "GreaterThan",#操作条件 [parameter(Mandatory = $false)] [int]$Threshold = 50,#阈值 [parameter(Mandatory = $false)] [ValidateSet("Average", "Last", "Maximum", "Minimum", "Total")]#计算方式,是平均还是最大等 [string]$TimeAggregationOperator = "Average", [parameter(Mandatory = $false)] [TimeSpan]$WindowSize = "00:05:00"#时间戳 ) function Write-DateTimeMessage { param ( [parameter(Mandatory = $false)] [switch]$Warning, [parameter(Mandatory = $true)] [string]$Message, [parameter(Mandatory = $false)] [string]$ForegroundColor ) if ($Warning) { Write-Warning ($(Get-Date -UFormat '%Y/%m/%d %H:%M:%S') + " * " + $Message) } else { if ($ForegroundColor) { Write-Host ($(Get-Date -UFormat '%Y/%m/%d %H:%M:%S') + " * " + $Message) -ForegroundColor $ForegroundColor } else { Write-Host ($(Get-Date -UFormat '%Y/%m/%d %H:%M:%S') + " * " + $Message) } } } #Get metric name switch ($Metric) { Memory { $MetricName = "/Memory/% Committed Bytes In Use" } CPU { $MetricName = "/Processor Information(_Total)/% Processor Time" } default { #<code> } } #Find the vm if vmname parameter specified try { $Error.Clear() if ($VmName) { Write-DateTimeMessage "Trying to find vm $VmName in resource group $RGName" $vms = Get-AzureRmVM -ResourceGroupName $RGName -Name $VmName -ErrorAction Stop Write-DateTimeMessage "vm $VmName Found in resource group $RGName" } else { $vms = Get-AzureRmVM -ResourceGroupName $RGName -ErrorAction Stop } # Create action email $actionEmail = New-AzureRmAlertRuleEmail -CustomEmail $MailAddress -WarningAction SilentlyContinue # Get resource id and add alert if ($vms -ne $null) { foreach ($vm in $vms) { $vmID = $vm.id $AlertName = $vm.Name + "_Alert_" + $Metric + "_" + $Operation + "_" + $Threshold + "_" + $actionEmail.CustomEmails $Error.Clear() Write-DateTimeMessage "Trying to add alert for vm $($vm.Name) ..." Add-AzureRmMetricAlertRule -Name $AlertName -Location "ChinaEast" -ResourceGroup $RGName -TargetResourceId $vmID -MetricName $MetricName -Operator $Operation -Threshold $Threshold -WindowSize $WindowSize -TimeAggregationOperator $TimeAggregationOperator -Action $actionEmail -ErrorAction 'Stop' -WarningAction 'SilentlyContinue' | Out-Null Write-DateTimeMessage "Add alert for vm $($vm.Name) successfully!" } } else { Write-DateTimeMessage "No vm in resource group $RGName" } } catch { Write-DateTimeMessage $Error[0].Exception.Message }
可以看到脚本很简单,运行方法这里举个例子,比如要为mxytest这个资源组下的所有VM创建CPU10分钟之内大于80便发邮件给abc@abc.com的alert,则可以按照以下方式运行
./Create-AzureAlert.ps1 -RGName mxytest -MailAddress "abc@abc.com" -Metric CPU -Operation GreaterThan -Threshold 80 -TimeAggregationOperator Average -WindowSize "00:10:00"
创建完成后即可在alert中国看到对应的内容
Get-AzureRmAlertRule -ResourceGroupName mxytest -WarningAction SilentlyContinue
也可以通过PowerShell获取到信息
原创文章,作者:kepupublish,如若转载,请注明出处:https://blog.ytso.com/182340.html