Add app:infra:snapshot command, page reads from var/infra.json

The /admin/infra page was slow because Docker stats API blocks per container.
Now a cron (every 5min) generates var/infra.json via app:infra:snapshot,
and the page reads the static JSON file instantly.
Mount Docker socket in cron container for snapshot access.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

ansible/deploy.yml

@@ -228,6 +228,13 @@
         job: "docker compose -f /var/www/e-ticket/docker-compose-prod.yml exec -T php php bin/console app:stripe:sync --env=prod >> /var/log/e-ticket-stripe-sync.log 2>&1"
         user: bot
 
+    - name: Configure infra snapshot cron (every 5 minutes)
+      cron:
+        name: "e-ticket infra snapshot"
+        minute: "*/5"
+        job: "docker compose -f /var/www/e-ticket/docker-compose-prod.yml exec -T php php bin/console app:infra:snapshot --env=prod >> /var/log/e-ticket-infra.log 2>&1"
+        user: bot
+
   post_tasks:
     - name: Disable maintenance mode
       command: make maintenance_off

docker-compose-dev.yml

@@ -179,8 +179,11 @@ services:
       dockerfile: Dockerfile
     container_name: e_ticket_cron
     restart: unless-stopped
+    group_add:
+      - "${DOCKER_GID:-989}"
     volumes:
       - .:/app
+      - /var/run/docker.sock:/var/run/docker.sock:ro
     depends_on:
       pgbouncer:
         condition: service_healthy

docker/cron/crontab

@@ -2,3 +2,4 @@
 0 * * * * echo "[$(date '+\%Y-\%m-\%d \%H:\%M:\%S')] START app:monitor:messenger" >> /proc/1/fd/1 && php /app/bin/console app:monitor:messenger --env=dev >> /proc/1/fd/1 2>&1 && echo "[$(date '+\%Y-\%m-\%d \%H:\%M:\%S')] END app:monitor:messenger" >> /proc/1/fd/1
 0 3 * * * echo "[$(date '+\%Y-\%m-\%d \%H:\%M:\%S')] START app:meilisearch:check-consistency" >> /proc/1/fd/1 && php /app/bin/console app:meilisearch:check-consistency --fix --env=dev >> /proc/1/fd/1 2>&1 && echo "[$(date '+\%Y-\%m-\%d \%H:\%M:\%S')] END app:meilisearch:check-consistency" >> /proc/1/fd/1
 0 */6 * * * echo "[$(date '+\%Y-\%m-\%d \%H:\%M:\%S')] START app:stripe:sync" >> /proc/1/fd/1 && php /app/bin/console app:stripe:sync --env=dev >> /proc/1/fd/1 2>&1 && echo "[$(date '+\%Y-\%m-\%d \%H:\%M:\%S')] END app:stripe:sync" >> /proc/1/fd/1
+*/5 * * * * php /app/bin/console app:infra:snapshot --env=dev >> /proc/1/fd/1 2>&1

src/Command/InfraSnapshotCommand.php

@@ -0,0 +1,40 @@
+<?php
+
+namespace App\Command;
+
+use App\Service\InfraService;
+use Symfony\Component\Console\Attribute\AsCommand;
+use Symfony\Component\Console\Command\Command;
+use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Output\OutputInterface;
+use Symfony\Component\DependencyInjection\Attribute\Autowire;
+
+/**
+ * @codeCoverageIgnore Infrastructure snapshot — reads Docker socket, /proc, network
+ */
+#[AsCommand(
+    name: 'app:infra:snapshot',
+    description: 'Generate infrastructure stats snapshot to var/infra.json',
+)]
+class InfraSnapshotCommand extends Command
+{
+    public function __construct(
+        private InfraService $infra,
+        #[Autowire('%kernel.project_dir%')] private string $projectDir,
+    ) {
+        parent::__construct();
+    }
+
+    protected function execute(InputInterface $input, OutputInterface $output): int
+    {
+        $data = $this->infra->getAll();
+        $data['generated_at'] = (new \DateTimeImmutable())->format(\DateTimeInterface::ATOM);
+
+        $path = $this->projectDir.'/var/infra.json';
+        file_put_contents($path, json_encode($data, \JSON_PRETTY_PRINT | \JSON_UNESCAPED_SLASHES | \JSON_UNESCAPED_UNICODE));
+
+        $output->writeln(sprintf('Snapshot written to %s (%d bytes)', $path, filesize($path)));
+
+        return Command::SUCCESS;
+    }
+}

src/Controller/AdminController.php

@@ -649,9 +649,21 @@ class AdminController extends AbstractController
     }
 
     #[Route('/infra', name: 'app_admin_infra', methods: ['GET'])]
-    public function infra(\App\Service\InfraService $infra): Response
+    public function infra(#[Autowire('%kernel.project_dir%')] string $projectDir): Response
     {
-        return $this->render('admin/infra.html.twig', $infra->getAll());
+        $path = $projectDir.'/var/infra.json';
+        if (!file_exists($path)) {
+            return $this->render('admin/infra.html.twig', [
+                'snapshot_missing' => true,
+                'server' => [], 'containers' => [], 'redis_global' => ['connected' => false],
+                'redis_dbs' => [], 'postgres' => ['connected' => false], 'pgbouncer' => ['connected' => false],
+                'generated_at' => null,
+            ]);
+        }
+
+        $data = json_decode(file_get_contents($path), true) ?? [];
+
+        return $this->render('admin/infra.html.twig', $data);
     }
 
     #[Route('/organisateurs/inviter', name: 'app_admin_invite_organizer', methods: ['GET', 'POST'])]

templates/admin/infra.html.twig

@@ -3,6 +3,19 @@
 {% block title %}Infrastructure{% endblock %}
 
 {% block body %}
+{% if snapshot_missing is defined and snapshot_missing %}
+<div class="admin-card mb-4">
+    <p class="text-sm font-bold text-yellow-600">Aucun snapshot disponible. Lancez <code class="bg-gray-100 px-1">php bin/console app:infra:snapshot</code></p>
+</div>
+{% endif %}
+
+{% if generated_at is defined and generated_at %}
+<div class="flex items-center justify-between mb-4">
+    <p class="text-[10px] font-black uppercase tracking-widest text-gray-400">Derniere mise a jour : {{ generated_at|date('d/m/Y H:i:s') }}</p>
+    <a href="{{ path('app_admin_infra') }}" class="text-[10px] font-black uppercase tracking-widest text-gray-400 hover:text-gray-600">Rafraichir</a>
+</div>
+{% endif %}
+
 <div class="grid grid-cols-1 xl:grid-cols-4 gap-4 min-h-[calc(100vh-80px)]">
 
     {# ── COL 1: Serveur ────────────────────────────────── #}