feat: implémentation initiale du reverse proxy de maintenance
Reverse proxy Nginx (image stable-alpine) qui sert l'app upstream ou une page de maintenance 503 selon l'IP du client. - Modes whitelist/blacklist commutables via MAINTENANCE_MODE - Liste IPv4 via MAINTENANCE_IP_LIST (séparée par virgules, validée au boot) - Logique en directives Nginx natives (geo + map), zéro Lua/njs - Page statique sobre HTML+CSS inline, zéro JS, zéro réseau sortant - Log dédié /var/log/nginx/maintenance.log pour les requêtes bloquées - Validation des env vars dans /docker-entrypoint.d/10-init.sh - Stack Docker + docker-compose pour dev local et tests - 6 cas de tests d'intégration (whitelist/blacklist x autorisée/bloquée + log + nginx -t) - Lint shellcheck propre sur tous les scripts shell
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<!DOCTYPE html>
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<html lang="fr">
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<head>
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<meta charset="UTF-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<meta name="robots" content="noindex">
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<title>Site en maintenance</title>
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<style>
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*, *::before, *::after { box-sizing: border-box; }
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html, body {
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margin: 0;
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padding: 0;
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}
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body {
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font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
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background-color: #fafaf9;
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color: #1c1917;
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min-height: 100vh;
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display: flex;
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align-items: center;
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justify-content: center;
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padding: 24px;
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line-height: 1.6;
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}
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main {
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max-width: 480px;
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width: 100%;
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text-align: center;
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padding: 40px 24px;
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}
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.icon {
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width: 64px;
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height: 64px;
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color: #0891b2;
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margin: 0 auto 24px;
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display: block;
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}
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h1 {
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font-size: 30px;
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font-weight: 600;
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margin: 0 0 12px;
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letter-spacing: -0.01em;
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}
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p {
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font-size: 16px;
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margin: 0 0 8px;
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color: #44403c;
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}
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p.subtle {
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font-size: 14px;
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color: #78716c;
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margin-top: 24px;
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}
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@media (max-width: 480px) {
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h1 { font-size: 26px; }
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}
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</style>
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</head>
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<body>
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<main>
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<svg class="icon" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="1.75" stroke-linecap="round" stroke-linejoin="round" aria-hidden="true">
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<path d="M14.7 6.3a1 1 0 0 0 0 1.4l1.6 1.6a1 1 0 0 0 1.4 0l3.77-3.77a6 6 0 0 1-7.94 7.94l-6.91 6.91a2.12 2.12 0 0 1-3-3l6.91-6.91a6 6 0 0 1 7.94-7.94l-3.76 3.76z"></path>
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</svg>
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<h1>Site en maintenance</h1>
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<p>Nous effectuons actuellement une opération de maintenance sur le service.</p>
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<p>Le site sera de nouveau accessible sous peu.</p>
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<p class="subtle">Merci de votre patience.</p>
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</main>
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</body>
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</html>
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