<p>Assign a registered instance to a layer.</p> <ul> <li> <p>You can assign registered on-premises instances to any layer type.</p> </li> <li> <p>You can assign registered Amazon EC2 instances only to custom layers.</p> </li> <li> <p>You cannot use this action with instances that were created with AWS OpsWorks Stacks.</p> </li> </ul> <p> <b>Required Permissions</b>: To use this action, an AWS Identity and Access Management (IAM) user must have a Manage permissions level for the stack or an attached policy that explicitly grants permissions. For more information on user permissions, see <a href="https://docs.aws.amazon.com/opsworks/latest/userguide/opsworks-security-users.html">Managing User Permissions</a>.</p>

{
  "success": true,
  "data": {
    "id": "abc123",
    "created_at": "2025-01-01T00:00:00Z"
  }
}

{
  "success": false,
  "error": {
    "code": "VALIDATION_ERROR",
    "message": "Invalid request parameters"
  }
}