Access Amazon Application Recovery Controller (ARC) zonal shift using an interface endpoint (AWS PrivateLink)

You can use AWS PrivateLink to create a private connection between your VPC and Amazon Application Recovery Controller (ARC) zonal shift. You can access ARC zonal shift as if it were in your VPC, without the use of an internet gateway, NAT device, VPN connection, or AWS Direct Connect connection. Instances in your VPC don't need public IP addresses to access ARC zonal shift.

You establish this private connection by creating an interface endpoint, powered by AWS PrivateLink. We create an endpoint network interface in each subnet that you enable for the interface endpoint. These are requester-managed network interfaces that serve as the entry point for traffic destined for ARC zonal shift.

For more information, see Access AWS services through AWS PrivateLink in the AWS PrivateLink Guide.

Considerations for ARC zonal shift

Before you set up an interface endpoint for ARC zonal shift, review Considerations in the AWS PrivateLink Guide.

ARC zonal shift supports making calls to all of its API actions through the interface endpoint.

Create an interface endpoint for ARC zonal shift

You can create an interface endpoint for ARC zonal shift using either the Amazon VPC console or the AWS Command Line Interface (AWS CLI). For more information, see Create an interface endpoint in the AWS PrivateLink Guide.

Create an interface endpoint for ARC zonal shift using the following service name:

com.amazonaws.region.arc-zonal-shift

If you enable private DNS for the interface endpoint, you can make API requests to ARC zonal shift using its default Regional DNS name. For example, arc-zonal-shift.us-east-1.amazonaws.com.

Create an endpoint policy for your interface endpoint

An endpoint policy is an IAM resource that you can attach to an interface endpoint. The default endpoint policy allows full access to ARC zonal shift through the interface endpoint. To control the access allowed to ARC zonal shift from your VPC, attach a custom endpoint policy to the interface endpoint.

For more information, see Control access to services using endpoint policies in the AWS PrivateLink Guide.

Example: VPC endpoint policy for ARC zonal shift actions

The following is an example of a custom endpoint policy. When you attach this policy to your interface endpoint, it grants access to the listed ARC zonal shift actions for all principals on all resources.

{
   "Statement": [
      {
         "Principal": "*",
         "Effect": "Allow",
         "Action": [
            "arc-zonal-shift:ListManagedResources",
            "arc-zonal-shift:StartZonalShift",
            "arc-zonal-shift:CancelZonalShift"
         ],
         "Resource":"*"
      }
   ]
}

The Resource can also be listed as arn:aws:elasticloadbalancing:us-east-1:111122223333:loadbalancer/app/Testing/1111111ecd42dc05.