如何解决如何使用 Azure PowerShell 创建 Azure 网络安全组流日志
我想为给定虚拟机的网络安全组创建一个 NSG 流日志,并使用 PowerShell 链接到给定的存储帐户。
我怎样才能做到这一点?
解决方法
这可以通过以下操作序列来实现:
- 确定链接到虚拟机的 NSG
- 为 NSG 的位置获取或创建一个 `NetworkWatcher
- 找到合适的存储帐户
- 设置流日志配置,如果不存在的话
param(
# RegEx pattern to find your first VM in your current subscription
[Parameter(Mandatory = $true,Position = 1)]
[string]$vmNamePattern,# RegEx pattern to find a storage account in your current subscription
[Parameter(Mandatory = $true,Position = 2)]
[string]$storageNamePattern
)
$vm = Get-AzVM | Where-Object { $_.Name -match $vmNamePattern } | Select-Object -First 1
$nic = Get-AzNetworkInterface -ResourceId $vm.NetworkProfile.NetworkInterfaces[0].Id
$sn = Get-AzVirtualNetworkSubnetConfig -ResourceId $nic.IpConfigurations[0].Subnet.Id
$nsgRes = Get-AzResource -ResourceId $sn.NetworkSecurityGroup.Id
$nsg = Get-AzNetworkSecurityGroup -ResourceGroupName $nsgRes.ResourceGroupName -Name $nsgRes.ResourceName
# create or get NetworkWatcher
$nw = Get-AzNetworkWatcher -ResourceGroupName NetworkWatcherRg | ? { $_.Location -eq $nsg.Location }
if (!$nw) {
New-AzNetworkWatcher -ResourceGroupName NetworkWatcherRg -Location $nsg.Location -Name $("NetworkWatcher_" + $nsg.Location)
$nw = Get-AzNetworkWatcher -ResourceGroupName NetworkWatcherRg | ? { $_.Location -eq $nsg.Location }
}
# detect first viable storage account
$storageAccount = Get-AzStorageAccount | Where-Object { $_.StorageAccountName -match $storageNamePattern -and $_.PrimaryEndpoints.Blob -match "^http" } | Select-Object -First 1
# get or set NSG flow log if not yet established
$fl = Get-AzNetworkWatcherFlowLogStatus -NetworkWatcher $nw -TargetResourceId $nsg.Id
if (!$fl) {
# https://docs.microsoft.com/de-de/azure/network-watcher/network-watcher-nsg-flow-logging-powershell
Set-AzNetworkWatcherConfigFlowLog -NetworkWatcher $nw -TargetResourceId $nsg.Id -StorageAccountId $storageAccount.Id -EnableFlowLog $true -FormatType Json -FormatVersion 2
}
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