AzureVirtualNetworkExtensions Methods

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Methods

Docs Reference Search C# APIs Aspire.Hosting.Azure.Network AzureVirtualNetworkExtensions Methods

Class Methods 11 members

Provides extension methods for adding Azure Virtual Network resources to the application model.

AddAzureVirtualNetwork(IDistributedApplicationBuilder, string, string?) extension IResourceBuilder<AzureVirtualNetworkResource>

Adds an Azure Virtual Network resource to the application model.

public static class AzureVirtualNetworkExtensions
{
    public static IResourceBuilder<AzureVirtualNetworkResource> AddAzureVirtualNetwork(
        this IDistributedApplicationBuilder builder,
        string name,
        string? addressPrefix = null)
    {
        // ...
    }
}

AzureVirtualNetworkExtensions.cs

Parameters

builder IDistributedApplicationBuilder The builder for the distributed application.

name string The name of the Azure Virtual Network resource.

addressPrefix string? optional The address prefix for the virtual network (e.g., "10.0.0.0/16"). If null, defaults to "10.0.0.0/16".

Returns

IResourceBuilder<AzureVirtualNetworkResource> A reference to the ApplicationModel.IResourceBuilder`1.

Examples

This example creates a virtual network with a subnet for private endpoints:

var vnet = builder.AddAzureVirtualNetwork("vnet");
var subnet = vnet.AddSubnet("pe-subnet", "10.0.1.0/24");

ATS export

Available to Polyglot AppHosts through the Aspire Type System.

AddAzureVirtualNetwork(IDistributedApplicationBuilder, string, IResourceBuilder<ParameterResource>) extension IResourceBuilder<AzureVirtualNetworkResource>

Adds an Azure Virtual Network resource to the application model with a parameterized address prefix.

public static class AzureVirtualNetworkExtensions
{
    public static IResourceBuilder<AzureVirtualNetworkResource> AddAzureVirtualNetwork(
        this IDistributedApplicationBuilder builder,
        string name,
        IResourceBuilder<ParameterResource> addressPrefix)
    {
        // ...
    }
}

AzureVirtualNetworkExtensions.cs

Parameters

builder IDistributedApplicationBuilder The builder for the distributed application.

name string The name of the Azure Virtual Network resource.

addressPrefix IResourceBuilder<ParameterResource> The parameter resource containing the address prefix for the virtual network (e.g., "10.0.0.0/16").

Returns

IResourceBuilder<AzureVirtualNetworkResource> A reference to the ApplicationModel.IResourceBuilder`1.

Examples

This example creates a virtual network with a parameterized address prefix:

var vnetPrefix = builder.AddParameter("vnetPrefix");
var vnet = builder.AddAzureVirtualNetwork("vnet", vnetPrefix);
var subnet = vnet.AddSubnet("pe-subnet", "10.0.1.0/24");

ATS export

Available to Polyglot AppHosts through the Aspire Type System.

AddSubnet(IResourceBuilder<AzureVirtualNetworkResource>, string, string, string?) extension IResourceBuilder<AzureSubnetResource>

Adds an Azure Subnet to the Virtual Network.

public static class AzureVirtualNetworkExtensions
{
    public static IResourceBuilder<AzureSubnetResource> AddSubnet(
        this IResourceBuilder<AzureVirtualNetworkResource> builder,
        string name,
        string addressPrefix,
        string? subnetName = null)
    {
        // ...
    }
}

AzureVirtualNetworkExtensions.cs

Parameters

builder IResourceBuilder<AzureVirtualNetworkResource> The Virtual Network resource builder.

name string The name of the subnet resource.

addressPrefix string The address prefix for the subnet (e.g., "10.0.1.0/24").

subnetName string? optional The subnet name in Azure. If null, the resource name is used.

Returns

IResourceBuilder<AzureSubnetResource> A reference to the ApplicationModel.IResourceBuilder`1.

Examples

This example adds a subnet to a virtual network:

var vnet = builder.AddAzureVirtualNetwork("vnet");
var subnet = vnet.AddSubnet("my-subnet", "10.0.1.0/24");

ATS export

Available to Polyglot AppHosts through the Aspire Type System.

AddSubnet(IResourceBuilder<AzureVirtualNetworkResource>, string, IResourceBuilder<ParameterResource>, string?) extension IResourceBuilder<AzureSubnetResource>

Adds an Azure Subnet to the Virtual Network with a parameterized address prefix.

public static class AzureVirtualNetworkExtensions
{
    public static IResourceBuilder<AzureSubnetResource> AddSubnet(
        this IResourceBuilder<AzureVirtualNetworkResource> builder,
        string name,
        IResourceBuilder<ParameterResource> addressPrefix,
        string? subnetName = null)
    {
        // ...
    }
}

AzureVirtualNetworkExtensions.cs

Parameters

builder IResourceBuilder<AzureVirtualNetworkResource> The Virtual Network resource builder.

name string The name of the subnet resource.

addressPrefix IResourceBuilder<ParameterResource> The parameter resource containing the address prefix for the subnet (e.g., "10.0.1.0/24").

subnetName string? optional The subnet name in Azure. If null, the resource name is used.

Returns

IResourceBuilder<AzureSubnetResource> A reference to the ApplicationModel.IResourceBuilder`1.

Examples

This example adds a subnet with a parameterized address prefix:

var subnetPrefix = builder.AddParameter("subnetPrefix");
var vnet = builder.AddAzureVirtualNetwork("vnet");
var subnet = vnet.AddSubnet("my-subnet", subnetPrefix);

ATS export

Available to Polyglot AppHosts through the Aspire Type System.

AllowInbound(IResourceBuilder<AzureSubnetResource>, string?, string?, string?, SecurityRuleProtocol?, int?, string?) extension IResourceBuilder<AzureSubnetResource>

Adds an inbound allow rule to the subnet's Network Security Group.

public static class AzureVirtualNetworkExtensions
{
    public static IResourceBuilder<AzureSubnetResource> AllowInbound(
        this IResourceBuilder<AzureSubnetResource> builder,
        string? port = null,
        string? from = null,
        string? to = null,
        SecurityRuleProtocol? protocol = null,
        int? priority = null,
        string? name = null)
    {
        // ...
    }
}

AzureVirtualNetworkExtensions.cs#L385

Parameters

builder IResourceBuilder<AzureSubnetResource> The subnet resource builder.

port string? optional The destination port range (e.g., "443", "80-443"). Defaults to "*" (any).

from string? optional The source address prefix (e.g., "AzureLoadBalancer", "Internet", "10.0.0.0/8"). Defaults to "*" (any).

to string? optional The destination address prefix. Defaults to "*" (any).

protocol SecurityRuleProtocol? optional The network protocol. Defaults to SecurityRuleProtocol.Asterisk (any).

priority int? optional The rule priority (100-4096). If not specified, auto-increments from 100 by 100.

name string? optional The rule name. If not specified, auto-generated from parameters.

Returns

IResourceBuilder<AzureSubnetResource> A reference to the ApplicationModel.IResourceBuilder`1 for chaining.

Remarks

If no Network Security Group has been associated with the subnet, one is automatically created.

Examples

This example allows HTTPS traffic from the Azure Load Balancer:

var subnet = vnet.AddSubnet("web", "10.0.1.0/24")
    .AllowInbound(port: "443", from: AzureServiceTags.AzureLoadBalancer, protocol: SecurityRuleProtocol.Tcp)
    .DenyInbound(from: AzureServiceTags.Internet);

ATS export

Available to Polyglot AppHosts through the Aspire Type System.

AllowOutbound(IResourceBuilder<AzureSubnetResource>, string?, string?, string?, SecurityRuleProtocol?, int?, string?) extension IResourceBuilder<AzureSubnetResource>

Adds an outbound allow rule to the subnet's Network Security Group.

public static class AzureVirtualNetworkExtensions
{
    public static IResourceBuilder<AzureSubnetResource> AllowOutbound(
        this IResourceBuilder<AzureSubnetResource> builder,
        string? port = null,
        string? from = null,
        string? to = null,
        SecurityRuleProtocol? protocol = null,
        int? priority = null,
        string? name = null)
    {
        // ...
    }
}

AzureVirtualNetworkExtensions.cs#L439

Parameters

builder IResourceBuilder<AzureSubnetResource> The subnet resource builder.

port string? optional The destination port range (e.g., "443", "80-443"). Defaults to "*" (any).

from string? optional The source address prefix. Defaults to "*" (any).

to string? optional The destination address prefix (e.g., "Internet", "VirtualNetwork"). Defaults to "*" (any).

protocol SecurityRuleProtocol? optional The network protocol. Defaults to SecurityRuleProtocol.Asterisk (any).

priority int? optional The rule priority (100-4096). If not specified, auto-increments from 100 by 100.

name string? optional The rule name. If not specified, auto-generated from parameters.

Returns

IResourceBuilder<AzureSubnetResource> A reference to the ApplicationModel.IResourceBuilder`1 for chaining.

Remarks

If no Network Security Group has been associated with the subnet, one is automatically created.

ATS export

Available to Polyglot AppHosts through the Aspire Type System.

DenyInbound(IResourceBuilder<AzureSubnetResource>, string?, string?, string?, SecurityRuleProtocol?, int?, string?) extension IResourceBuilder<AzureSubnetResource>

Adds an inbound deny rule to the subnet's Network Security Group.

public static class AzureVirtualNetworkExtensions
{
    public static IResourceBuilder<AzureSubnetResource> DenyInbound(
        this IResourceBuilder<AzureSubnetResource> builder,
        string? port = null,
        string? from = null,
        string? to = null,
        SecurityRuleProtocol? protocol = null,
        int? priority = null,
        string? name = null)
    {
        // ...
    }
}

AzureVirtualNetworkExtensions.cs#L412

Parameters

builder IResourceBuilder<AzureSubnetResource> The subnet resource builder.

port string? optional The destination port range (e.g., "443", "80-443"). Defaults to "*" (any).

from string? optional The source address prefix (e.g., "Internet", "VirtualNetwork", "10.0.0.0/8"). Defaults to "*" (any).

to string? optional The destination address prefix. Defaults to "*" (any).

protocol SecurityRuleProtocol? optional The network protocol. Defaults to SecurityRuleProtocol.Asterisk (any).

priority int? optional The rule priority (100-4096). If not specified, auto-increments from 100 by 100.

name string? optional The rule name. If not specified, auto-generated from parameters.

Returns

IResourceBuilder<AzureSubnetResource> A reference to the ApplicationModel.IResourceBuilder`1 for chaining.

Remarks

If no Network Security Group has been associated with the subnet, one is automatically created.

ATS export

Available to Polyglot AppHosts through the Aspire Type System.

DenyOutbound(IResourceBuilder<AzureSubnetResource>, string?, string?, string?, SecurityRuleProtocol?, int?, string?) extension IResourceBuilder<AzureSubnetResource>

Adds an outbound deny rule to the subnet's Network Security Group.

public static class AzureVirtualNetworkExtensions
{
    public static IResourceBuilder<AzureSubnetResource> DenyOutbound(
        this IResourceBuilder<AzureSubnetResource> builder,
        string? port = null,
        string? from = null,
        string? to = null,
        SecurityRuleProtocol? protocol = null,
        int? priority = null,
        string? name = null)
    {
        // ...
    }
}

AzureVirtualNetworkExtensions.cs#L466

Parameters

builder IResourceBuilder<AzureSubnetResource> The subnet resource builder.

port string? optional The destination port range (e.g., "443", "80-443"). Defaults to "*" (any).

from string? optional The source address prefix. Defaults to "*" (any).

to string? optional The destination address prefix (e.g., "Internet", "VirtualNetwork"). Defaults to "*" (any).

protocol SecurityRuleProtocol? optional The network protocol. Defaults to SecurityRuleProtocol.Asterisk (any).

priority int? optional The rule priority (100-4096). If not specified, auto-increments from 100 by 100.

name string? optional The rule name. If not specified, auto-generated from parameters.

Returns

IResourceBuilder<AzureSubnetResource> A reference to the ApplicationModel.IResourceBuilder`1 for chaining.

Remarks

If no Network Security Group has been associated with the subnet, one is automatically created.

ATS export

Available to Polyglot AppHosts through the Aspire Type System.

WithDelegatedSubnet(IResourceBuilder<T>, IResourceBuilder<AzureSubnetResource>) extension IResourceBuilder<T>

Configures the resource to use the specified subnet with appropriate service delegation.

public static class AzureVirtualNetworkExtensions
{
    public static IResourceBuilder<T> WithDelegatedSubnet<T>(
        this IResourceBuilder<T> builder,
        IResourceBuilder<AzureSubnetResource> subnet)
    {
        // ...
    }
}

AzureVirtualNetworkExtensions.cs#L265-L279

Parameters

builder IResourceBuilder<T> The resource builder.

subnet IResourceBuilder<AzureSubnetResource> The subnet to associate with the resource.

Returns

IResourceBuilder<T> A reference to the ApplicationModel.IResourceBuilder`1.

Remarks

This method automatically configures the subnet with the appropriate service delegation for the target resource type (e.g., "Microsoft.App/environments" for Azure Container Apps).

Examples

This example configures an Azure Container App Environment to use a subnet:

var vnet = builder.AddAzureVirtualNetwork("vnet");
var subnet = vnet.AddSubnet("aca-subnet", "10.0.0.0/23");

var env = builder.AddAzureContainerAppEnvironment("env")
    .WithDelegatedSubnet(subnet);

ATS export

Available to Polyglot AppHosts through the Aspire Type System.

WithNatGateway(IResourceBuilder<AzureSubnetResource>, IResourceBuilder<AzureNatGatewayResource>) extension IResourceBuilder<AzureSubnetResource>

Associates a NAT Gateway with the subnet.

public static class AzureVirtualNetworkExtensions
{
    public static IResourceBuilder<AzureSubnetResource> WithNatGateway(
        this IResourceBuilder<AzureSubnetResource> builder,
        IResourceBuilder<AzureNatGatewayResource> natGateway)
    {
        // ...
    }
}

AzureVirtualNetworkExtensions.cs#L306-L310

Parameters

builder IResourceBuilder<AzureSubnetResource> The subnet resource builder.

natGateway IResourceBuilder<AzureNatGatewayResource> The NAT Gateway to associate with the subnet.

Returns

IResourceBuilder<AzureSubnetResource> A reference to the ApplicationModel.IResourceBuilder`1 for chaining.

Remarks

A NAT Gateway provides outbound internet connectivity for resources in the subnet. A subnet can have at most one NAT Gateway.

Examples

This example creates a subnet with an associated NAT Gateway:

var natGateway = builder.AddNatGateway("nat");
var vnet = builder.AddAzureVirtualNetwork("vnet");
var subnet = vnet.AddSubnet("aca-subnet", "10.0.0.0/23")
    .WithNatGateway(natGateway);

ATS export

Available to Polyglot AppHosts through the Aspire Type System.

WithNetworkSecurityGroup(IResourceBuilder<AzureSubnetResource>, IResourceBuilder<AzureNetworkSecurityGroupResource>) extension IResourceBuilder<AzureSubnetResource>

Associates a Network Security Group with the subnet.

public static class AzureVirtualNetworkExtensions
{
    public static IResourceBuilder<AzureSubnetResource> WithNetworkSecurityGroup(
        this IResourceBuilder<AzureSubnetResource> builder,
        IResourceBuilder<AzureNetworkSecurityGroupResource> nsg)
    {
        // ...
    }
}

AzureVirtualNetworkExtensions.cs#L338-L350

Parameters

builder IResourceBuilder<AzureSubnetResource> The subnet resource builder.

nsg IResourceBuilder<AzureNetworkSecurityGroupResource> The Network Security Group to associate with the subnet.

Returns

IResourceBuilder<AzureSubnetResource> A reference to the ApplicationModel.IResourceBuilder`1 for chaining.

Exceptions

InvalidOperationException Thrown when the subnet already has security rules added via shorthand methods ( AzureVirtualNetworkExtensions.AllowInbound, AzureVirtualNetworkExtensions.DenyInbound, AzureVirtualNetworkExtensions.AllowOutbound, AzureVirtualNetworkExtensions.DenyOutbound). Use either shorthand methods or an explicit NSG, not both.

Examples

This example creates a subnet with an associated Network Security Group:

var nsg = builder.AddNetworkSecurityGroup("web-nsg");
var vnet = builder.AddAzureVirtualNetwork("vnet");
var subnet = vnet.AddSubnet("web-subnet", "10.0.1.0/24")
    .WithNetworkSecurityGroup(nsg);

ATS export

Available to Polyglot AppHosts through the Aspire Type System.