restart-service.php

<?php

use ApiClients\Client\Supervisord\AsyncClientInterface;
use ApiClients\Client\Supervisord\Resource\Async\Program;
use ApiClients\Client\Supervisord\Resource\ProgramInterface;
use Psr\Log\LoggerInterface;
use React\EventLoop\LoopInterface;
use Rx\React\Promise;

Promise::fromObservable(
    $this->supervisor->programs()->filter(function (ProgramInterface $program) {
        return $program->name() === getenv('SUPERVISOR_NAME');
    })->take(1)
)->then(function (Program $program) {
    $uptime = $program->now() - $program->start();
    $this->logger->info('"' . $program->name() . '" has been up and running for ' . $uptime . ' seconds, restarting');

    return $program->restart();
})->done(function (Program $program) {
    $uptime = $program->now() - $program->start();
    $this->logger->info('Restarted "' . $program->name() . '" up and running for ' . $uptime . ' seconds');
});