'{username}', 'apiKey' => '{apiKey}', )); $service = $client->loadBalancerService(null, '{region}'); // Retrieve existing LB $lb = $service->loadBalancer('{loadBalancerId}'); // Update SSL config $sslConfig = $lb->SSLTermination(); $sslConfig->update(array( 'enabled' => true, 'securePort' => 443, 'privateKey' => '{privateKey}', // specify your private key 'certificate' => '{certificate}', // specify your SSL certificate ));