Add deployment script and health checks for zero-downtime updates

docker-compose.example.yml

@@ -18,6 +18,12 @@ services:
     volumes:
       - ./data:/app/data
       - ./public/uploads:/app/public/uploads
+    healthcheck:
+      test: [ "CMD", "wget", "--no-verbose", "--tries=1", "--spider", "http://localhost:3000/api/daily" ]
+      interval: 30s
+      timeout: 10s
+      retries: 3
+      start_period: 40s
     # Initialize DB if needed and run migration
     command: >
       sh -c "npx -y prisma@6.19.0 db push && node scripts/migrate-covers.mjs && node server.js"

scripts/deploy.sh

@@ -0,0 +1,25 @@
+#!/bin/bash
+set -e
+
+echo "🚀 Starting optimized deployment..."
+
+# Pull latest changes
+echo "📥 Pulling latest changes from git..."
+git pull
+
+# Build new image in background (doesn't stop running container)
+echo "🔨 Building new Docker image (this runs while app is still online)..."
+docker compose build
+
+# Quick restart with pre-built image
+echo "🔄 Restarting with new image (minimal downtime)..."
+docker compose up -d
+
+# Clean up old images
+echo "🧹 Cleaning up old images..."
+docker image prune -f
+
+echo "✅ Deployment complete!"
+echo ""
+echo "📊 Showing logs (Ctrl+C to exit)..."
+docker compose logs -f