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feat(infra) : add maintenance mode during deployments
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Nginx returns a 503 page when maintenance.on exists. The deploy script
automatically enables/disables maintenance mode around the update.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
This commit is contained in:
THOLOT DECHENE Matthieu
2026-04-03 13:09:07 +02:00
parent eec0294f3e
commit be720178c2
4 changed files with 73 additions and 0 deletions
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1
infra/prod/Dockerfile
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@@ -61,6 +61,7 @@ RUN rm -f /etc/nginx/sites-enabled/default
# Configs
COPY infra/prod/supervisord.conf /etc/supervisor/conf.d/app.conf
COPY infra/prod/nginx.conf /etc/nginx/sites-enabled/lesstime.conf
COPY infra/prod/maintenance.html /var/www/html/public/maintenance.html
# Backend from stage 1
COPY --from=backend-build /app /var/www/html

6
infra/prod/deploy.sh
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@@ -8,6 +8,9 @@ export LESSTIME_IMAGE_TAG="$TAG"
echo "==> Deploying lesstime:${TAG}..."
echo "==> Enabling maintenance mode..."
touch maintenance.on
echo "==> Pulling image..."
sudo docker compose pull
@@ -24,5 +27,8 @@ echo "==> Clearing cache..."
sudo docker compose exec -T -u www-data app php bin/console cache:clear --env=prod
sudo docker compose exec -T -u www-data app php bin/console cache:warmup --env=prod
echo "==> Disabling maintenance mode..."
rm -f maintenance.on
VERSION=$(sudo docker compose exec -T app cat config/version.yaml | grep 'app.version' | awk -F"'" '{print $2}')
echo "==> Deployed v${VERSION}"

49
infra/prod/maintenance.html Normal file
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@@ -0,0 +1,49 @@
<!DOCTYPE html>
<html lang="fr">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Maintenance en cours</title>
<style>
body {
font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
background-color: #f3f4f6;
display: flex;
justify-content: center;
align-items: center;
min-height: 100vh;
margin: 0;
}
.container {
background: white;
border-radius: 12px;
box-shadow: 0 4px 24px rgba(0,0,0,0.10);
padding: 48px 40px;
max-width: 480px;
text-align: center;
}
.icon {
font-size: 48px;
margin-bottom: 16px;
}
h1 {
color: #1f2937;
font-size: 24px;
margin: 0 0 16px;
}
p {
color: #6b7280;
font-size: 16px;
line-height: 1.6;
margin: 0;
}
</style>
</head>
<body>
<div class="container">
<div class="icon">&#128736;</div>
<h1>Maintenance en cours</h1>
<p>L'application est temporairement indisponible pour mise à jour. Elle sera de retour dans quelques instants.</p>
</div>
</body>
</html>

17
infra/prod/nginx.conf
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@@ -2,6 +2,23 @@ server {
listen 80;
server_name _;
# Maintenance mode
if (-f /var/www/html/maintenance.on) {
return 503;
}
error_page 503 @maintenance;
location @maintenance {
root /var/www/html/public;
rewrite ^(.*)$ /maintenance.html break;
}
location = /maintenance.html {
root /var/www/html/public;
internal;
}
root /var/www/html/frontend/.output/public;
index index.html;