composer require unicaen/livelog

cp -n vendor/unicaen-livelog/config/unicaen-livelog.local.php.dist config/autoload/unicaen-livelog.local.php

    'unicaen-livelog' => [
        /**
         * Configuration de la websocket.
         */
        'websocket' => [
            /**
             * Adresse "privée" à laquelle écoute la websocket.
             */
            'private_url' => '0.0.0.0:7443',

            /**
             * Adresse "public" à laquelle la websocket est accessible par les clients (navigateurs).
             * Dans cet exemple, un navigateur web pourrait se connecter à l'adresse 'wss://serveur.unicaen.fr/livelog'. 
             */
            'public_url' => '/livelog',

            /**
             * Mode verbeux ou pas.
             */
            'verbose' => false,
        ],
        /**
         * Configuration de la socket.
         */
        'socket' => [
            /**
             * Chemin de la socket Unix.
             */
            'path' => 'unix:///tmp/unicaen_livelog.sock',

            /**
             * Mode verbeux ou pas.
             */
            'verbose' => false,
        ],

runuser -u www-data -- php public/index.php unicaen-livelog run-sockets --verbose 1

RuntimeException
Failed to listen on Unix domain socket "unix:///tmp/unicaen_livelog.sock": Unknown error

runuser -u www-data -- php public/index.php unicaen-livelog test

[socket]>    DATA {"formatted":"[2022-02-01T15:09:39.070488+01:00] mylogger.INFO: Ceci est un test \u00e0 2$ ! D'ac ? ~ % [] []\n","clientId":"client_61f93f2312813"}
[websocket]> SEND : Stop, client client_61f93f2312813 inconnu !

websocat --insecure --protocol "livelog" 'wss://localhost.unicaen.fr:8003/livelog?client=client_1234'

[websocket]> OPEN : client_1234
[websocket]> MESSAGE : un message de log !

[websocket]> CLOSE : client_1234

a2enmod proxy_wstunnel

# Websocket pour unicaen/livelog.
# ==> accessible de l'extérieur à l'adresse wss://serveur.unicaen.fr/livelog
SSLProxyEngine On
ProxyPass        /livelog  ws://0.0.0.0:7443
ProxyPassReverse /livelog  ws://0.0.0.0:7443

a2enconf livelog

use Laminas\Mvc\Controller\AbstractActionController;
use Monolog\Logger;
use UnicaenLiveLog\Log\LivelogSocketLogHandler;

class ImportController extends AbstractActionController
{
    use LivelogSocketLogHandlerAwareTrait;
        
    public function voirAction(): array
    {
        //...
    }
        
    public function lancerAction(): bool
    {
        //...
        
        $logger = new Logger('livelog');
        $logger->pushHandler($this->livelogSocketHandler);
        $this->importService->setLogger($logger);
        $result = $this->importService->runImport($import);
        
        return false;
    }

    //...
}

use Psr\Container\ContainerInterface;
use UnicaenLivelog\Log\LivelogSocketLogHandler;

class ImportControllerFactory
{
    function __invoke(ContainerInterface $container): ImportController
    {
        $controller = new ImportController();
        
        $livelogSocketHandler = $container->get(LivelogSocketLogHandler::class);
        $controller->setLivelogSocketHandler($livelogSocketHandler);
       
        //...
        
        return $controller;
    }
}

<a class="btn btn-warning"
   id="lancer"
   href="<?php echo $this->url(
       'unicaen-db-import/import/lancer',
       ['name' => $import->getName()]
   ) ?>"><span class="fas fa-play"></span> Lancer l'import</a>

<script>
  $(function() {
    // `conn` est de type `WebSocket` (https://developer.mozilla.org/fr/docs/Web/API/WebSocket)
    let conn = $("#livelog-div").data('conn');
    conn.addEventListener('open', function(e) {
      $("#lancer").on('click', function(event) {
        let trigger = $(this).addClass('disabled');
        $.get(trigger.attr("href"), function() {
          trigger.removeClass('disabled');
        });
      });
    });
  });
</script>

<?php
/** @var \UnicaenLivelog\View\Helper\LivelogPanelHelper $livelogPanelHelper */
$livelogPanelHelper = $this->plugin('livelogPanel');
$livelogPanelHelper->setDivId($divId = 'livelog-div');
echo $livelogPanelHelper;
?>

<style>
    .livelog-panel {
        line-height: normal;
        font-family: monospace;
        font-size: 9px;
        
        border: 2px grey dotted;
        
        height: 300px;
        overflow-y: scroll;
        overflow-x: scroll;
        white-space: nowrap;
        
        padding: 0.5em;
        margin-top: 1em;
    }
</style>