feat: add complete Docker setup for markdown editor

Create Docker configuration files and setup commands

#VERCEL_SKIP

Co-authored-by: Anders Lehmann Pier <3219386+AndersPier@users.noreply.github.com>

nginx.conf

@@ -0,0 +1,96 @@
+events {
+    worker_connections 1024;
+}
+
+http {
+    upstream markdown-editor {
+        server markdown-editor:3000;
+    }
+
+    # Rate limiting
+    limit_req_zone $binary_remote_addr zone=api:10m rate=10r/s;
+
+    server {
+        listen 80;
+        server_name localhost;
+
+        # Security headers
+        add_header X-Frame-Options "SAMEORIGIN" always;
+        add_header X-Content-Type-Options "nosniff" always;
+        add_header X-XSS-Protection "1; mode=block" always;
+        add_header Referrer-Policy "strict-origin-when-cross-origin" always;
+
+        # Gzip compression
+        gzip on;
+        gzip_vary on;
+        gzip_min_length 1024;
+        gzip_proxied any;
+        gzip_comp_level 6;
+        gzip_types
+            text/plain
+            text/css
+            text/xml
+            text/javascript
+            application/json
+            application/javascript
+            application/xml+rss
+            application/atom+xml
+            image/svg+xml;
+
+        # Static files caching
+        location ~* \.(js|css|png|jpg|jpeg|gif|ico|svg|woff|woff2|ttf|eot)$ {
+            expires 1y;
+            add_header Cache-Control "public, immutable";
+            proxy_pass http://markdown-editor;
+            proxy_set_header Host $host;
+            proxy_set_header X-Real-IP $remote_addr;
+            proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+            proxy_set_header X-Forwarded-Proto $scheme;
+        }
+
+        # API routes with rate limiting
+        location /api/ {
+            limit_req zone=api burst=20 nodelay;
+            proxy_pass http://markdown-editor;
+            proxy_set_header Host $host;
+            proxy_set_header X-Real-IP $remote_addr;
+            proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+            proxy_set_header X-Forwarded-Proto $scheme;
+        }
+
+        # Main application
+        location / {
+            proxy_pass http://markdown-editor;
+            proxy_set_header Host $host;
+            proxy_set_header X-Real-IP $remote_addr;
+            proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+            proxy_set_header X-Forwarded-Proto $scheme;
+            
+            # WebSocket support (if needed)
+            proxy_http_version 1.1;
+            proxy_set_header Upgrade $http_upgrade;
+            proxy_set_header Connection "upgrade";
+        }
+
+        # Health check endpoint
+        location /health {
+            access_log off;
+            return 200 "healthy\n";
+            add_header Content-Type text/plain;
+        }
+    }
+
+    # HTTPS configuration (uncomment and configure for production)
+    # server {
+    #     listen 443 ssl http2;
+    #     server_name your-domain.com;
+    #     
+    #     ssl_certificate /etc/nginx/ssl/cert.pem;
+    #     ssl_certificate_key /etc/nginx/ssl/key.pem;
+    #     ssl_protocols TLSv1.2 TLSv1.3;
+    #     ssl_ciphers ECDHE-RSA-AES256-GCM-SHA512:DHE-RSA-AES256-GCM-SHA512:ECDHE-RSA-AES256-GCM-SHA384:DHE-RSA-AES256-GCM-SHA384;
+    #     ssl_prefer_server_ciphers off;
+    #     
+    #     # Same location blocks as above
+    # }
+}