[google-cloud-sql-discuss] Connection failed to the Mysql database

Error: Connection failed: php_network_getaddresses: getaddrinfo failed: Name or service not known

Code: 

<?php

$servername = "34.68.186.29";

$username = "root";

$password = "root";

$dsn = "mysql:dbname=myage;unix_socket=/cloudsql/xxxx-xx-xx-xxxxxxdac1fe3f8506:us-central1:irs"; 

// Create connection

$conn = new mysqli($dsn, $severname, $username, $password);

.

.

.

?>

app.yaml file: Refer to the screenshot

FYI:

API: App Engine Admin API Enabled

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