如何在PHP中获取AWS EC2实例ID

Question

I have 2 Instance in AWS EC2 and I want check request by Instance id.

require_once 'vendor/autoload.php';

use Aws\Ec2\Ec2Client;
use Aws\Rds\RdsClient;
$instance_id = $ec2->describeInstances();

if($instance_id == 'i0-jkedsf54325123' || $instance_id == 'i0-jkedsf543251321'){
    echo "request instance id is allow";
}else{ 
    echo "request not allow";
}

Need to check which instance request is coming.

Answer 1

If you wish to find the Instance ID on which some code is running, you can access the Instance Metadata .

To do it from PHP, use (from Get Amazon AWS Instance ID (PHP / wget) · GitHub ):

<?php
//---------------------------------------------------------------------------------
// You can get the metadata for an AWS instance by loading the following URL
// Note: This URL must be loaded from an AWS instance
//
//---------------------------------------------------------------------------------
// URL:
//      http://169.254.169.254/latest/meta-data/instance-id
//
//---------------------------------------------------------------------------------
// wget:
//      wget -q -O - http://169.254.169.254/latest/meta-data/instance-id
//
//---------------------------------------------------------------------------------

echo @file_get_contents("http://instance-data/latest/meta-data/instance-id");

?>