Kraken\Runtime\Container\Manager\ProcessManagerBase::startProcesses PHP Method

    public function startProcesses($aliases, $params = [])
    {
        $promises = [];
        foreach ($aliases as $alias) {
            $promises[] = $this->startProcess($alias, $params);
        }
        return Promise::all($promises)->then(function () {
            return 'Processes have been started.';
        }, function () {
            throw new RejectionException('Some of the processes could not be started.');
        });
    }