Manage Azure private endpoints

Azure private endpoints have several options for managing their configuration and deployment.

You can determine GroupId and MemberName values by querying the Azure Private Link resource. You need the GroupId and MemberName values to configure a static IP address for a private endpoint during creation.

A private endpoint has two custom properties: static IP address and network interface name. These properties must be set when the private endpoint is created.

With a service provider and consumer deployment of Private Link, an approval process is in place to make the connection.

Determine GroupID and MemberName

During the creation of a private endpoint with Azure PowerShell and the Azure CLI, the GroupId and MemberName values of the private endpoint resource might be needed.

• GroupId is the subresource of the private endpoint.
• MemberName is the unique stamp for the private IP address of the endpoint.

For more information about private endpoint subresources and their values, see Private Link resource.

To determine the values of GroupId and MemberName for your private endpoint resource, use the following commands. MemberName is contained within the RequiredMembers property.

## Place the previously created webapp into a variable. ##
$webapp = 
Get-AzWebApp -ResourceGroupName myResourceGroup -Name myWebApp1979

$resource = 
Get-AzPrivateLinkResource -PrivateLinkResourceId $webapp.ID

az network private-link-resource list \
    --resource-group MyResourceGroup \
    --name myWebApp1979 \
    --type Microsoft.Web/sites

Custom properties

Network interface rename and static IP address assignment are custom properties that you can set on a private endpoint during creation.

Network interface rename

By default, when a private endpoint is created the network interface associated with the private endpoint is given a random name for its network interface. The network interface must be named when the private endpoint is created. The renaming of the network interface of an existing private endpoint is unsupported.

Use the following commands when you create a private endpoint to rename the network interface.

## Place the previously created webapp into a variable. ##
$webapp = Get-AzWebApp -ResourceGroupName myResourceGroup -Name myWebApp1979

## Create the private endpoint connection. ## 
$pec = @{
    Name = 'myConnection'
    PrivateLinkServiceId = $webapp.ID
    GroupID = 'sites'
}
$privateEndpointConnection = New-AzPrivateLinkServiceConnection @pec

## Place the virtual network you created previously into a variable. ##
$vnet = Get-AzVirtualNetwork -ResourceGroupName 'myResourceGroup' -Name 'myVNet'

## Create the private endpoint. ##
$pe = @{
    ResourceGroupName = 'myResourceGroup'
    Name = 'myPrivateEndpoint'
    Location = 'chinaeast2'
    Subnet = $vnet.Subnets[0]
    PrivateLinkServiceConnection = $privateEndpointConnection
    CustomNetworkInterfaceName = 'myPrivateEndpointNIC'
}
New-AzPrivateEndpoint @pe

id=$(az webapp list \
    --resource-group myResourceGroup \
    --query '[].[id]' \
    --output tsv)

az network private-endpoint create \
    --connection-name myConnection \
    --name myPrivateEndpoint \
    --private-connection-resource-id $id \
    --resource-group myResourceGroup \
    --subnet myBackendSubnet \
    --group-id sites \
    --nic-name myPrivateEndpointNIC \
    --vnet-name myVNet

Static IP address

By default, when a private endpoint is created, the IP address for the endpoint is automatically assigned. The IP is assigned from the IP range of the virtual network configured for the private endpoint. A situation can arise when a static IP address for the private endpoint is required. The static IP address must be assigned when the private endpoint is created. The configuration of a static IP address for an existing private endpoint is currently unsupported.

For procedures to configure a static IP address when you create a private endpoint, see Create a private endpoint using Azure PowerShell and Create a private endpoint using the Azure CLI.

Private endpoint connections

Private Link works on an approval model where the Private Link consumer can request a connection to the service provider for consuming the service.

The service provider can then decide whether to allow the consumer to connect or not. Private Link enables service providers to manage the private endpoint connection on their resources.

There are two connection approval methods that a Private Link consumer can choose from:

• Automatic: If the service consumer has Azure role-based access control (RBAC) permissions on the service provider resource, the consumer can choose the automatic approval method. When the request reaches the service provider resource, no action is required from the service provider and the connection is automatically approved.

• Manual: If the service consumer doesn't have RBAC permissions on the service provider resource, the consumer can choose the manual approval method. The connection request appears on the service resources as Pending. The service provider has to manually approve the request before connections can be established.

  In manual cases, the service consumer can also specify a message with the request to provide more context to the service provider. The service provider has the following options to choose from for all private endpoint connections: Approve, Reject, and Remove.

The following table shows the various service provider actions and the resulting connection states for private endpoints. The service provider can change the connection state at a later time without consumer intervention. The action updates the state of the endpoint on the consumer side.

Manage private endpoint connections on Azure PaaS resources

Use the following steps to manage a private endpoint connection in the Azure portal.

1. Sign in to the Azure portal.

2. In the search box at the top of the portal, enter Private Link. In the search results, select Private link.

3. In the Private Link Center, select Private endpoints or Private link services.

4. For each of your endpoints, you can view the number of private endpoint connections associated with it. You can filter the resources as needed.

5. Select the private endpoint. Under the connections listed, select the connection that you want to manage.

6. You can change the state of the connection by selecting from the options at the top.

Manage private endpoint connections on a customer- or partner-owned Private Link service

Use the following PowerShell and Azure CLI commands to manage private endpoint connections on Azure partner services or customer-owned services.

$get = @{
    Name = 'myPrivateLinkService'
    ResourceGroupName = 'myResourceGroup'
}
Get-AzPrivateEndpointConnection @get

$approve = @{
    Name = 'myPrivateEndpointConnection'
    ServiceName = 'myPrivateLinkService'
    ResourceGroupName = 'myResourceGroup'
}
Approve-AzPrivateEndpointConnection @approve

$deny = @{
    Name = 'myPrivateEndpointConnection'
    ServiceName = 'myPrivateLinkService'
    ResourceGroupName = 'myResourceGroup'
}
Deny-AzPrivateEndpointConnection  @deny

$remove = @{
    Name = 'myPrivateEndpointConnection'
    ServiceName = 'myPrivateLinkService'
    ResourceGroupName = 'myResourceGroup'
}
Remove-AzPrivateEndpointConnection @remove

  az network private-endpoint-connection show \
    --name myPrivateEndpointConnection \
    --resource-group myResourceGroup

  az network private-endpoint-connection approve \
    --name myPrivateEndpointConnection  \
    --resource-group myResourceGroup

  az network private-endpoint-connection reject \
    --name myPrivateEndpointConnection  \
    --resource-group myResourceGroup

  az network private-endpoint-connection delete \
    --name myPrivateEndpointConnection \
    --resource-group myResourceGroup

Next steps

• Learn about private endpoints