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Enable NSG Flow and Traffic Analytics
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<# | |
======================================================================================= | |
AUTHOR: Alexandre Verkinderen | |
DATE: 18/07/2019 | |
Version: 1.0 | |
Comment: bulk enable NSG flow and traffic analytics | |
======================================================================================= | |
#> | |
#variables | |
$ResourgeGroupName = Read-Host "Please provide name for the storage account ResourgeGroup that will be used for saving the NSG logs" | |
$StorageAccountLogs = Read-Host "Please provide name of Storage Account that will be used for saving the NSG logs" | |
$retentionperiod = Read-Host "Please provide retention period" | |
$omsrg = Read-Host "Please provide name of OMS ResourgeGroup that will be used for saving the NSG logs" | |
$oms = Read-Host "Please provide name of Log analytics workspace that will be used for saving the NSG logs" | |
#Login to the Azure Resource Management Account | |
Login-AzAccount | |
Register-AzureRmResourceProvider -ProviderNamespace Microsoft.Insights | |
#region Get Azure Subscriptions | |
$subscriptions = Get-AzSubscription | |
$menu = @{} | |
for ($i = 1;$i -le $subscriptions.count; $i++) | |
{ | |
Write-Host -Object "$i. $($subscriptions[$i-1].Name)" | |
$menu.Add($i,($subscriptions[$i-1].Id)) | |
} | |
[int]$ans = Read-Host -Prompt 'Select subscription where Log analytics and storage account resides' | |
$subscriptionID = $menu.Item($ans) | |
$subscription = Get-AzSubscription -SubscriptionId $subscriptionID | |
Set-AzContext -SubscriptionName $subscription.Name | |
#endregion | |
$subId = (Get-AzContext).Subscription.Id | |
$subName = (Get-AzContext).Subscription.Name | |
#regionGet Azure details details | |
$storageAccount = Get-AzStorageAccount -ResourceGroupName $ResourgeGroupName -AccountName $StorageAccountLogs | |
$workspace = Get-AzOperationalInsightsWorkspace -Name $oms -ResourceGroupName $omsrg | |
$NWs = Get-AzNetworkWatcher -ResourceGroupName NetworkWatcherRg | |
#endregion | |
#region Enable NSG Flow Logs | |
Foreach($NW in $NWs){ | |
$NWlocation = $NW.location | |
write-host "Looping trough $NWlocation" -ForegroundColor Yellow | |
$nsgs = Get-AzNetworkSecurityGroup | Where-Object {$_.Location -eq $NWlocation} | |
Foreach($nsg in $nsgs) | |
{ | |
$flow = Get-AzNetworkWatcherFlowLogStatus -NetworkWatcher $NW -TargetResourceId $nsg.Id | |
if($flow.Enabled) | |
{write-host "flow already enabled"} | |
else | |
{ | |
Set-AzNetworkWatcherConfigFlowLog -NetworkWatcher $NW -TargetResourceId $nsg.Id -StorageAccountId $storageAccount.Id -EnableFlowLog $true -EnableRetention $true -RetentionInDays $retentionperiod -FormatType Json -FormatVersion 2 -EnableTrafficAnalytics -Workspace $workspace -TrafficAnalyticsInterval 60 | |
write-host "Flows enabled for " $nsg.Name | |
} | |
} | |
} | |
#endregion |
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