Report Changes to DRS/HA settings

Do your vCenter settings get changed when they shouldn't?  This script will email an alert when anything has changed.  

First you need to run once and it'll create "E:\scripts\PowerCLI\logs\HA-DRS-GetCluster-File.txt" and copy that file to "E:\scripts\PowerCLI\logs\HA-DRS-GetCluster-Baseline.txt".

From then on each time the script runs (schedule in Windows Task Scheduler), a new GetCluster-File is created and compared to the baseline file.

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# created by KC on 2015/06/04

#

#

#pre-reqs are:

# 1.  set vCenter server for Connect command

# 2.  verify/create directory/file

# E:\scripts\PowerCLI\logs\HA-DRS-GetCluster-Baseline.txt (Cam)

# F:\scripts\PowerCLI\logs\HA-DRS-GetCluster-Baseline.txt(Basel)

#

#

Add-PSSnapin VMware.VimAutomation.Core

Connect-VIServer vSphere

#

# after valid change to HA/DRS settings in vSphere, copy

# E:\scripts\PowerCLI\logs\HA-DRS-GetCluster-File.txt

# overwriting and replacing:

# E:\scripts\PowerCLI\logs\HA-DRS-GetCluster-Baseline.txt

# to prevent alerts by this script

#

#get email variables from vCenter 

#

$vCenterSettings = Get-View -Id 'OptionManager-VpxSettings'

$emailFrom = ($vCenterSettings.Setting | Where-Object { $_.Key -eq "mail.sender"}).Value

$smtpServer = ($vCenterSettings.Setting | Where-Object { $_.Key -eq "mail.smtp.server"}).Value

#set email variables manaully

$emailRcpt = "email@email.com"

$MailSendingTo = "email@email.com"

#

#set variables for baseline file and new cluster-file

#

$GetClusterFile =  'E:\scripts\PowerCLI\logs\HA-DRS-GetCluster-File.txt'

$GetClusterBaseline = 'E:\scripts\PowerCLI\logs\HA-DRS-GetCluster-Baseline.txt'

$GetClusterMail = 'E:\scripts\PowerCLI\logs\HA-DRS-GetClusterMail.txt'

#

#

#collect cluster config info and send to screen

#

Get-Cluster | Sort-Object -Property Name | 

Select-Object -Property Name,HAEnabled,HAAdmissionControlEnabled,

@{N="AdmissionControlPolicy";E={$_.ExtensionData.Configuration.Dasconfig.AdmissionControlPolicy.GetType().Name}},

DrsEnabled,DrsMode,DrsAutomationLevel

#

#

#collect cluster config info and send to file

#

Get-Cluster | Sort-Object -Property Name | 

Select-Object -Property Name,HAEnabled,HAAdmissionControlEnabled,

@{N="AdmissionControlPolicy";E={$_.ExtensionData.Configuration.Dasconfig.AdmissionControlPolicy.GetType().Name}},

DrsEnabled,DrsMode,DrsAutomationLevel | out-file $GetClusterFile

#

# Get remaining cluster info, send to screen

#

Get-Cluster | Select-Object -Property Name,

@{N="CpuFailoverResourcesPercentage";E={$_.ExtensionData.Configuration.DasConfig.AdmissionControlPolicy.CpuFailoverResourcesPercent}},

@{N="MemoryFailoverResourcesPercentage";E={$_.ExtensionData.Configuration.DasConfig.AdmissionControlPolicy.MemoryFailoverResourcesPercent}} 

#

# Get remaining cluster info, appending to file

#

Get-Cluster | Select-Object -Property Name,

@{N="CpuFailoverResourcesPercentage";E={$_.ExtensionData.Configuration.DasConfig.AdmissionControlPolicy.CpuFailoverResourcesPercent}},

@{N="MemoryFailoverResourcesPercentage";E={$_.ExtensionData.Configuration.DasConfig.AdmissionControlPolicy.MemoryFailoverResourcesPercent}} >> $GetClusterFile

#

# load GetCluster info into variable for email later

$hadrs_getclusterfile = Get-Content $GetClusterFile

#$hadrs_baselinefile = Get-Content $GetClusterBaseline

#

#

$Report = Compare-Object -Ref (Get-Content $GetClusterFile) -Diff (Get-Content $GetClusterBaseline) -Verbose | Out-String 

write-output $Report $hadrs_getclusterfile > $GetClusterMail

#

$Same_Or_Diff = Compare-Object -Ref (Get-Content $GetClusterFile) -Diff (Get-Content $GetClusterBaseline) | Measure | select Count

#

#

$z = $Same_Or_Diff.Count

if ( $z -eq 0)

{

write-host $Same_Or_Diff 

write-host "is Same_Or_Diff"

write-host $z 

write-host "is Count of differences, should be equal to 0" 

write-host "which means no change to HA/DRS config at" 

#$Report = "$MailSender HA/DRS config is unchanged, no action needed for $MailSender"

$MailSender 

$Report = (Get-Content $GetClusterFile | out-string)

#commented email so we only get alerts for problems

#email results

#Send-MailMessage -from $emailFrom -to $emailRcpt -subject "HA/DRS Config Alert OK - not changed" -body $Report -smtpServer $SmtpServer

}

#

else

#

{

#

write-host $Same_Or_Diff 

write-host "is Same_Or_Diff"

write-host $z 

write-host "is Count of differences, should not be equal to 0" 

write-host "A change to HA/DRS config at" $MailSender "needs investigation" >> $GetClusterMail

write-host $Report

write-host is email body

#

#

#email results

$Report = (Get-Content $GetClusterMail | out-string)

#Send-MailMessage -from $MailSender -to kevin.cade@napp.co.uk -subject "Alert: HA/DRS Change Config Change Changed" -body $Report -smtpServer $MailSmtpServer

#prepare email

$emailSubject = "Alert: HA/DRS Change Config Changed!" 

$msgBody = $Report

$smtp = New-Object Net.Mail.SmtpClient -arg $smtpServer

#send email

$smtp.Send($emailFrom,$emailRcpt,$emailSubject,$msgBody)

Send-MailMessage -from $emailFrom -to $emailRcpt -subject "HA/DRS Config Alert changed!" -body $Report -smtpServer $SmtpServer

}

disConnect-VIServer vSphere -confirm:$false