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Cozumpark Bilisim Portali
Azure VM Monitoring – Part 2
Posted in Virtual Machine Manager, Windows Powershell, Windows Server | No Comment | 2,885 views | 07/05/2014 23:04

In the first part of our Azure Monitoring series, I showed you how to collect basic monitoring data from your Azure VMs. That was real time statistics but it was output everything on PowerShell console via Write-Host. It doesn’t make any sense because it’s not practical.

Now in this part, we will output all data into XML file, so you can use it on a website or on your CRM. You can also use .NET or PHP to parse XML data and put statistics onto website.

Following script is sample codes of VirtualMetric: Azure Module. You can check it from: http://www.virtualmetric.com

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################################
## VirtualMetric: Azure Module
################################
 
# Debug Path
$DebugPath = "C:\PowerShell\debug.txt"
 
# Debug Preference
$ErrorActionPreference = "SilentlyContinue";
 
# Import Azure PowerShell Module
Import-Module Azure -EA Stop
 
# Import Azure Settings
Import-AzurePublishSettingsFile "C:\PowerShell\Azure.Credentials.publishsettings" -EA Stop
 
# Azure VM Credentials
$Credentials = Get-Credential
 
while ($True)
{
	# Execution Time Calculation
	$PoSHStartTime = Get-Date
 
	# Start Work
	Write-Host "Starting job.."
 
	# Append Stats XML Header
	$GeneralStatsXML = "<?xml version=""1.0"" encoding=""utf-8""?>`n"
	$GeneralStatsXML += "<Result>`n"
	$GeneralStatsXML += " <Code>1</Code>`n"
	$GeneralStatsXML += " <Message>Operation is completed</Message>`n"
 
	# Append VM Reports XML Header
	$VMReportsXML = "<?xml version=""1.0"" encoding=""utf-8""?>`n"
	$VMReportsXML += "<Result>`n"
	$VMReportsXML += " <Code>1</Code>`n"
	$VMReportsXML += " <Message>Operation is completed</Message>`n"
 
	# Get Azure Virtual Machines
	$VMs = Get-AzureVM | Where ServiceName -eq "AzureWebFarm"
 
	# Clear Values
	$VMCount = 0;
	$VMTotalvCPU = 0;
	$VMTotalCPUUsage = 0;
	$VMFreeCPU = 0;
	$VMTotalMemory = 0;
	$VMTotalMemoryUsage = 0;
	$VMFreeMemory = 0;
	$VMTotalDisk = 0;
	$VMTotalDiskUsage = 0;
	$VMFreeDisk = 0;
 
	foreach ($VM in $VMs)
	{
		# Clear Variables
		$VMDetails = $Null;
		$AzureEndpoints = $Null;
		$VMName = $Null;
		$VMServiceName = $Null;
		$VMIPAddress = $Null;
		$VMAvailabilitySetName = $Null;
		$VMInstanceSize = $Null;
		$VMPowerState = $Null;
		$VMDNSAddress = $Null;
		$VMDNSName = $Null;
		$VMWinRMCertThumbprint = $Null;
		$CheckAzureVMCert = $Null;
		$OSInformation = $Null;
		$CPUInformation = $Null;
 
		# Get Azure VM Details
		$VMDetails = Get-AzureVM -ServiceName $VM.ServiceName -Name $VM.Name
 
		# Get Azure VM Information
		$VMName = $VMDetails.Name
		$VMServiceName = $VMDetails.ServiceName
		$VMIPAddress = $VMDetails.IPAddress
		$VMAvailabilitySetName = $VMDetails.AvailabilitySetName
		$VMInstanceSize = $VMDetails.InstanceSize
		$VMPowerState = $VMDetails.PowerState
		$VMDNSAddress = $VMDetails.DNSName
		$VMWinRMCertThumbprint = $VMDetails.VM.DefaultWinRMCertificateThumbprint
 
		# Get Azure VM DNS Name
		$VMDNSName = $VMDNSAddress -match "(?<=\//)(.*?)(?=\/)"
		$VMDNSName = $Matches[0]
 
		# Parameter Validation
		if (!$VMAvailabilitySetName) { $VMAvailabilitySetName = "Non-HA" }
 
		Write-Host " "
		Write-Host " "
		Write-Host "VM Details:"
		Write-Host " "
		Write-Host "VM Name: $VMName"
		Write-Host "VM ServiceName: $VMServiceName"
		Write-Host "VM IP Address: $VMIPAddress"
		Write-Host "VM Availability SetName: $VMAvailabilitySetName"
		Write-Host "VM Instance Size: $VMInstanceSize"
		Write-Host "VM Power State: $VMPowerState"
		Write-Host "VM DNS Address: $VMDNSAddress"
		Write-Host "VM DNS Name: $VMDNSName"
		Write-Host "VM WinRM Certificate Thumbprint: $VMWinRMCertThumbprint"
 
		# Get Azure VM Endpoints
		$AzureEndpoints = $VMDetails | Get-AzureEndpoint
 
		Write-Host " "
		Write-Host " "
		Write-Host "VM Endpoint Details:"
 
		foreach ($AzureEndpoint in $AzureEndpoints)
		{
			# Clear Values
			$AzureEndpointLBSetName = $Null;
			$AzureEndpointProbePort = $Null;
			$AzureEndpointProbeProtocol = $Null;
 
			# Get Azure Endpoint Details
			$AzureEndpointName = $AzureEndpoint.Name
			$AzureEndpointLocalPort = $AzureEndpoint.LocalPort
			$AzureEndpointLBSetName = $AzureEndpoint.LBSetName
			$AzureEndpointVip = $AzureEndpoint.Vip
			$AzureEndpointPort = $AzureEndpoint.Port
			$AzureEndpointProtocol = $AzureEndpoint.Protocol
			$AzureEndpointProbePort = $AzureEndpoint.ProbePort
			$AzureEndpointProbeProtocol = $AzureEndpoint.ProbeProtocol
 
			# Parameter Validation
			if (!$AzureEndpointLBSetName) { $AzureEndpointLBSetName = "Non-HA" }
			if (!$AzureEndpointProbePort) { $AzureEndpointProbePort = "Non-HA" }
			if (!$AzureEndpointProbeProtocol) { $AzureEndpointProbeProtocol = "Non-HA" }
 
			Write-Host " "
			Write-Host "Azure Endpoint Name: $AzureEndpointName"
			Write-Host "Azure Endpoint Local Port: $AzureEndpointLocalPort"
			Write-Host "Azure Endpoint LB SetName: $AzureEndpointLBSetName"
			Write-Host "Azure Endpoint Vip: $AzureEndpointVip"
			Write-Host "Azure Endpoint Port: $AzureEndpointPort"
			Write-Host "Azure Endpoint Protocol: $AzureEndpointProtocol"
			Write-Host "Azure Endpoint Probe Port: $AzureEndpointProbePort"
			Write-Host "Azure Endpoint Probe Protocol: $AzureEndpointProbeProtocol"
		}
 
		# Check Azure VM Certificate
		$CheckAzureVMCert = Get-ChildItem -Path Cert:\LocalMachine\Root | Where Thumbprint -eq $VMWinRMCertThumbprint
 
		if (!$CheckAzureVMCert)
		{		
			# Get Azure VM Certificate
			$AzureX509Cert = Get-AzureCertificate -ServiceName $VMServiceName -Thumbprint $VMWinRMCertThumbprint -ThumbprintAlgorithm sha1
 
			# Save Certificate to Temp File
			$CertTempFile = [IO.Path]::GetTempFileName()
			$AzureX509Cert.Data | Out-File $CertTempFile
 
			# Get Local Certificate File
			$LocalCertFile = New-Object System.Security.Cryptography.X509Certificates.X509Certificate2 $CertTempFile
 
			# Import Local Certificate
			$CertStore = New-Object System.Security.Cryptography.X509Certificates.X509Store "Root", "LocalMachine"
			$CertStore.Open([System.Security.Cryptography.X509Certificates.OpenFlags]::ReadWrite)
			$CertStore.Add($LocalCertFile)
			$CertStore.Close()
 
			# Remove Temp File
			Remove-Item $CertTempFile
		}
 
		if ($VMPowerState -eq "Started")
		{		
			# Get Azure VM WinRM Uri
			$AzureVMWinRMUri = Get-AzureWinRMUri -ServiceName $VMServiceName -Name $VMName
 
			# Get Azure VM Credentials
			if (!$Credentials) { $Credentials = Get-Credential }
 
			# Get Azure VM Data
			$OSInformation = Invoke-Command -ConnectionUri $AzureVMWinRMUri -ScriptBlock {Get-WmiObject -Class "Win32_OperatingSystem"} -Credential $Credentials
			$CPUInformation = Invoke-Command -ConnectionUri $AzureVMWinRMUri -ScriptBlock {Get-WmiObject -Class "Win32_Processor"} -Credential $Credentials
			$DiskInformation = Invoke-Command -ConnectionUri $AzureVMWinRMUri -ScriptBlock {Get-WmiObject -Class "Win32_LogicalDisk" | Where DeviceID -eq "C:"} -Credential $Credentials
 
			if ($OSInformation -and $CPUInformation -and $DiskInformation)
			{
				# Get Azure VM Resource Usage
				$AzureVMCPUName = $CPUInformation[0].Name
				$AzureVMCPUSocket = @($CPUInformation).Count
				$AzureVMCPUCount = $CPUInformation[0].NumberOfCores * $AzureVMCPUSocket
				$AzureVMCPULoad = $CPUInformation | Measure-Object -Property LoadPercentage -Sum
				$AzureVMCPUUsage = [math]::round(($AzureVMCPULoad.Sum / $AzureVMCPULoad.Count), 0)
				$AzureVMTotalMemory = ([math]::round(($OSInformation.TotalVisibleMemorySize / 1MB), 1))
				$AzureVMFreeMemory = ([math]::round(($OSInformation.FreePhysicalMemory / 1MB), 1))
				$AzureVMTotalMemoryUsage = [int]$AzureVMTotalMemory - [int]$AzureVMFreeMemory
				$AzureVMTotalDisk = ([math]::round(($DiskInformation.Size / 1GB), 1))
				$AzureVMFreeDisk = ([math]::round(($DiskInformation.FreeSpace / 1GB), 1))
				$AzureVMTotalDiskUsage = [int]$AzureVMTotalDisk - [int]$AzureVMFreeDisk
				$AzureVMDiskReadIO = Invoke-Command -ConnectionUri $AzureVMWinRMUri -ScriptBlock {[math]::round(((Get-Counter -Counter "\LogicalDisk(C:)\Disk Reads/Sec").CounterSamples[0].CookedValue), 0)} -Credential $Credentials
				$AzureVMDiskWriteIO = Invoke-Command -ConnectionUri $AzureVMWinRMUri -ScriptBlock {[math]::round(((Get-Counter -Counter "\LogicalDisk(C:)\Disk Writes/Sec").CounterSamples[0].CookedValue), 0)} -Credential $Credentials
 
				Write-Host " "
				Write-Host "CPU Name: $AzureVMCPUName"
				Write-Host "CPU Count: $AzureVMCPUCount"
				Write-Host "CPU Usage: $AzureVMCPUUsage"
				Write-Host "Total Memory: $AzureVMTotalMemory GB"
				Write-Host "Free Memory: $AzureVMFreeMemory GB"
				Write-Host "Total Disk: $AzureVMTotalDisk GB"
				Write-Host "Free Disk: $AzureVMFreeDisk GB"
				Write-Host "Disk Read IO: $AzureVMDiskReadIO"
				Write-Host "Disk Write IO: $AzureVMDiskWriteIO"
 
				# VM Reports
				$VMReportsXML += " <OperationResult>`n"
				$VMReportsXML += "  <VMName>$VMName</VMName>`n"
				$VMReportsXML += "  <ProcessorCount>$AzureVMCPUCount</ProcessorCount>`n"
				$VMReportsXML += "  <MemoryLimit>$AzureVMTotalMemory</MemoryLimit>`n"
				$VMReportsXML += "  <TotalDisk>$AzureVMTotalDisk</TotalDisk>`n"
				$VMReportsXML += "  <VMReadIO>$AzureVMDiskReadIO</VMReadIO>`n"
				$VMReportsXML += "  <VMWriteIO>$AzureVMDiskWriteIO</VMWriteIO>`n"
				$VMReportsXML += "  <VMState>$VMPowerState</VMState>`n"
				$VMReportsXML += " </OperationResult>`n"
			}
			else
			{
				# Get Azure VM Resource Usage
				$AzureVMCPUCount = 0;
				$AzureVMCPUUsage = 0;
				$AzureVMTotalMemory = 0;
				$AzureVMFreeMemory = 0;
				$AzureVMTotalMemoryUsage = 0;
				$AzureVMTotalDisk = 0;
				$AzureVMFreeDisk = 0;
				$AzureVMTotalDiskUsage = 0;
				$AzureVMDiskReadIO = 0;
				$AzureVMDiskWriteIO = 0;
 
				# VM Reports
				$VMReportsXML += " <OperationResult>`n"
				$VMReportsXML += "  <VMName>$VMName</VMName>`n"
				$VMReportsXML += "  <ProcessorCount>$AzureVMCPUCount</ProcessorCount>`n"
				$VMReportsXML += "  <MemoryLimit>$AzureVMTotalMemory</MemoryLimit>`n"
				$VMReportsXML += "  <TotalDisk>$AzureVMTotalDisk</TotalDisk>`n"
				$VMReportsXML += "  <VMReadIO>$AzureVMDiskReadIO</VMReadIO>`n"
				$VMReportsXML += "  <VMWriteIO>$AzureVMDiskWriteIO</VMWriteIO>`n"
				$VMReportsXML += "  <VMState>$VMPowerState</VMState>`n"
				$VMReportsXML += " </OperationResult>`n"
			}
		}
		else
		{
			# Get Azure VM Resource Usage
			$AzureVMCPUCount = 0;
			$AzureVMCPUUsage = 0;
			$AzureVMTotalMemory = 0;
			$AzureVMFreeMemory = 0;
			$AzureVMTotalMemoryUsage = 0;
			$AzureVMTotalDisk = 0;
			$AzureVMFreeDisk = 0;
			$AzureVMTotalDiskUsage = 0;
			$AzureVMDiskReadIO = 0;
			$AzureVMDiskWriteIO = 0;
 
			# VM Reports
			$VMReportsXML += " <OperationResult>`n"
			$VMReportsXML += "  <VMName>$VMName</VMName>`n"
			$VMReportsXML += "  <ProcessorCount>$AzureVMCPUCount</ProcessorCount>`n"
			$VMReportsXML += "  <MemoryLimit>$AzureVMTotalMemory</MemoryLimit>`n"
			$VMReportsXML += "  <TotalDisk>$AzureVMTotalDisk</TotalDisk>`n"
			$VMReportsXML += "  <VMReadIO>$AzureVMDiskReadIO</VMReadIO>`n"
			$VMReportsXML += "  <VMWriteIO>$AzureVMDiskWriteIO</VMWriteIO>`n"
			$VMReportsXML += "  <VMState>$VMPowerState</VMState>`n"
			$VMReportsXML += " </OperationResult>`n"
		}
 
		# Calculations
		$VMCount = [int]$VMCount + 1;
		$VMTotalvCPU = [int]$VMTotalvCPU + [int]$AzureVMCPUCount;
		$VMTotalCPUUsage = [int]$VMTotalCPUUsage + [int]$AzureVMCPUUsage;
		$VMTotalMemory = [int]$VMTotalMemory + [int]$AzureVMTotalMemory
		$VMTotalMemoryUsage = [int]$VMTotalMemoryUsage + [int]$AzureVMTotalMemoryUsage
		$VMFreeMemory = [int]$VMFreeMemory + [int]$AzureVMFreeMemory
		$VMTotalDisk = [int]$VMTotalDisk + [int]$AzureVMTotalDisk
		$VMTotalDiskUsage = [int]$VMTotalDiskUsage + [int]$AzureVMTotalDiskUsage
		$VMFreeDisk = [int]$VMFreeDisk + [int]$AzureVMFreeDisk
	}
 
	[int]$VMTotalCPUUsage = ([math]::round(($VMTotalCPUUsage / $VMCount), 0))
	$FreeCPUPercent = 100 - [int]$VMTotalCPUUsage;
 
	# General Stats
	$GeneralStatsXML += " <OperationResult>`n"
	$GeneralStatsXML += "  <ServiceName>$VMServiceName</ServiceName>`n"
	$GeneralStatsXML += "  <VMCount>$VMCount</VMCount>`n"
	$GeneralStatsXML += "  <TotalvCPU>$VMTotalvCPU</TotalvCPU>`n"
	$GeneralStatsXML += "  <TotalCPUUsage>$VMTotalCPUUsage</TotalCPUUsage>`n"
	$GeneralStatsXML += "  <FreeCPUPercent>$FreeCPUPercent</FreeCPUPercent>`n"
	$GeneralStatsXML += "  <FreeMemory>$VMFreeMemory</FreeMemory>`n"
	$GeneralStatsXML += "  <TotalMemoryUsage>$VMTotalMemoryUsage</TotalMemoryUsage>`n"
	$GeneralStatsXML += "  <TotalMemory>$VMTotalMemory</TotalMemory>`n"
	$GeneralStatsXML += "  <FreeDiskSpace>$VMFreeDisk</FreeDiskSpace>`n"
	$GeneralStatsXML += "  <TotalDiskUsage>$VMTotalDiskUsage</TotalDiskUsage>`n"
	$GeneralStatsXML += "  <TotalDiskSpace>$VMTotalDisk</TotalDiskSpace>`n"
	$GeneralStatsXML += " </OperationResult>`n"
 
	# Append Stats XML Footer
	$GeneralStatsXML += "</Result>`n"
 
	# Append VM Reports XML Footer
	$VMReportsXML += "</Result>`n"
 
	# Remove old statistics
	Remove-Item -Path "C:\inetpub\wwwroot\xml\vm\reports.xml" -EA SilentlyContinue
	Remove-Item -Path "C:\inetpub\wwwroot\xml\statistics.xml" -EA SilentlyContinue
 
	# Export new statistics
	Add-Content -Value $VMReportsXML -Path "C:\inetpub\wwwroot\xml\vm\reports.xml"
	Add-Content -Value $GeneralStatsXML -Path "C:\inetpub\wwwroot\xml\statistics.xml"
 
	# Prepare for Next Job
	Write-Host " "
	Start-Sleep 60
}

You will see xml files in the following directories. So you can make a website to parse that data.

This is demo page of VirtualMetric Azure Module:

You can download dashboard HTML files from here:

That is a dashboard in realtime.



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