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adding support for firewall policy on vnet firewall #11003

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adding support for firewall policy on vnet firewall
saisujithreddym Jan 26, 2020
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adding tests
saisujithreddym Feb 2, 2020
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saisujithreddym Feb 2, 2020
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saisujithreddym Feb 2, 2020
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saisujithreddym Feb 2, 2020
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saisujithreddym Feb 2, 2020
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48 changes: 36 additions & 12 deletions src/Network/Network/AzureFirewall/NewAzureFirewallCommand.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -263,22 +263,46 @@ private PSAzureFirewall CreateAzureFirewall()
}
else
{

if (FirewallPolicyId != null && (this.ApplicationRuleCollection != null || this.NetworkRuleCollection != null || this.NatRuleCollection != null))
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@markcowl markcowl Jan 31, 2020

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This seems like something that should be enforced through parameter sets - FirewallPolicyId should not be in the same parameter sets that include ApplicationRUleCollection or NetworkRuleCollection

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@saisujithreddym saisujithreddym Jan 31, 2020 •
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I am having trouble with the mutual exclusion scenario @markcowl placing firewall policy id in one parameter set and rule collections in another did not achieve the desired result.

I have tried various combinations but could not get it done. Do you have an example where we can achieve mutual exclusion using paramter sets? I will keep exploring as well

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@saisujithreddym saisujithreddym Feb 3, 2020 •
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We have decided to fail the call from NRP when there are both the policy and the rule collections. This way we need not make changes on the PS when we try to support policy+collections in case, show a message which is common across multiple platforms and track the usage. Also I would like to make a PR against network january branch and not the master. I have created another PR: #11013 am closing this one

{
throw new ArgumentException("Firewall Policy and Rule Collections cannot coexist");
}

var sku = new PSAzureFirewallSku();
sku.Name = MNM.AzureFirewallSkuName.AZFWVNet;
sku.Tier = MNM.AzureFirewallSkuTier.Standard;
firewall = new PSAzureFirewall()
if (FirewallPolicyId != null)
{
Name = this.Name,
ResourceGroupName = this.ResourceGroupName,
Location = this.Location,
ApplicationRuleCollections = this.ApplicationRuleCollection?.ToList(),
NatRuleCollections = this.NatRuleCollection?.ToList(),
NetworkRuleCollections = this.NetworkRuleCollection?.ToList(),
ThreatIntelMode = this.ThreatIntelMode ?? MNM.AzureFirewallThreatIntelMode.Alert,
ThreatIntelWhitelist = this.ThreatIntelWhitelist,
PrivateRange = this.PrivateRange,
Sku = sku
};
firewall = new PSAzureFirewall()
{
Name = this.Name,
ResourceGroupName = this.ResourceGroupName,
Location = this.Location,
FirewallPolicy = FirewallPolicyId != null ? new MNM.SubResource(FirewallPolicyId) : null,
ThreatIntelMode = this.ThreatIntelMode ?? MNM.AzureFirewallThreatIntelMode.Alert,
ThreatIntelWhitelist = this.ThreatIntelWhitelist,
PrivateRange = this.PrivateRange,
Sku = sku
};
}
else
{
firewall = new PSAzureFirewall()
{
Name = this.Name,
ResourceGroupName = this.ResourceGroupName,
Location = this.Location,
ApplicationRuleCollections = this.ApplicationRuleCollection?.ToList(),
NatRuleCollections = this.NatRuleCollection?.ToList(),
NetworkRuleCollections = this.NetworkRuleCollection?.ToList(),
ThreatIntelMode = this.ThreatIntelMode ?? MNM.AzureFirewallThreatIntelMode.Alert,
ThreatIntelWhitelist = this.ThreatIntelWhitelist,
PrivateRange = this.PrivateRange,
Sku = sku
};
}


if (this.Zone != null)
{
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2 changes: 2 additions & 0 deletions src/Network/Network/ChangeLog.md
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Expand Up @@ -21,6 +21,8 @@
## Upcoming Release
* Fixed FilterData example in Start-AzVirtualNetworkGatewayConnectionPacketCapture.md and Start-AzVirtualnetworkGatewayPacketCapture.md.
* Added Packet Capture example for capture all inner and outer packets in Start-AzVirtualNetworkGatewayConnectionPacketCapture.md and Start-AzVirtualnetworkGatewayPacketCapture.md.
* Support Azure Firewall Policy on VNet Firewalls
- No new cmdlets are added. Relaxing the restriction for firewall policy on VNet firewalls

## Version 2.3.0
* New example added to Set-AzNetworkWatcherConfigFlowLog.md to demonstrate Traffic Analytics disable scenario.
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12 changes: 12 additions & 0 deletions src/Network/Network/help/New-AzFirewall.md
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Expand Up @@ -199,6 +199,18 @@ Threat Intel will also run in default mode - Alert - which means malicious traff

To support "forced tunneling" scenarios, this firewall will use the subnet "AzureFirewallManagementSubnet" and the management public IP address for its management traffic

### 13: Create a Firewall with Firewall Policy attached to a virtual network
```
$rgName = "resourceGroupName"
$vnet = Get-AzVirtualNetwork -ResourceGroupName $rgName -Name "vnet"
$pip = Get-AzPublicIpAddress -ResourceGroupName $rgName -Name "publicIpName"
$fp = Get-AzFirewallPolicy -ResourceGroupName $rgName -Name "fp"
New-AzFirewall -Name "azFw" -ResourceGroupName $rgName -Location centralus -VirtualNetwork $vnet -PublicIpAddress $pip -FirewallPolicyId $fp
```

This example creates a Firewall attached to virtual network "vnet" in the same resource group as the firewall.
The rules and threat intelligence that will be applied to the firewall will be taken from the firewall policy

## PARAMETERS

### -ApplicationRuleCollection
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