Article Manager MCP Server

# Production Nginx configuration for MCP Markdown Manager with SSL
# This configuration provides:
# - SSL/TLS termination with security headers
# - HTTP to HTTPS redirect
# - Subpath deployment on /articles
# - Production-grade security and performance settings
# - Rate limiting and access controls

events {
    worker_connections 2048;
    use epoll;
    multi_accept on;
}

http {
    # Basic settings
    sendfile on;
    tcp_nopush on;
    tcp_nodelay on;
    keepalive_timeout 65;
    keepalive_requests 100;
    types_hash_max_size 2048;
    server_tokens off;
    
    # MIME types
    include /etc/nginx/mime.types;
    default_type application/octet-stream;
    
    # Logging
    log_format main '$remote_addr - $remote_user [$time_local] "$request" '
                    '$status $body_bytes_sent "$http_referer" '
                    '"$http_user_agent" "$http_x_forwarded_for" '
                    '$request_time $upstream_response_time';
    
    access_log /var/log/nginx/access.log main;
    error_log /var/log/nginx/error.log warn;
    
    # 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;
    
    # Rate limiting
    limit_req_zone $binary_remote_addr zone=api:10m rate=10r/s;
    limit_req_zone $binary_remote_addr zone=general:10m rate=30r/s;
    
    # Upstream for MCP Markdown Manager
    upstream mcp-markdown {
        server mcp-markdown-manager:5000;
        keepalive 32;
    }
    
    # HTTP server - redirect to HTTPS
    server {
        listen 80;
        server_name _;
        
        # Health check (allow HTTP for monitoring)
        location /health {
            proxy_pass http://mcp-markdown/health;
            access_log off;
        }
        
        # Redirect all other HTTP traffic to HTTPS
        location / {
            return 301 https://$host$request_uri;
        }
    }
    
    # HTTPS server
    server {
        listen 443 ssl http2;
        server_name yourdomain.com;  # Replace with your domain
        
        # SSL configuration
        ssl_certificate /etc/nginx/ssl/cert.pem;
        ssl_certificate_key /etc/nginx/ssl/key.pem;
        
        # SSL security settings
        ssl_protocols TLSv1.2 TLSv1.3;
        ssl_ciphers ECDHE-RSA-AES128-GCM-SHA256:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-RSA-AES128-SHA256:ECDHE-RSA-AES256-SHA384;
        ssl_prefer_server_ciphers off;
        ssl_session_cache shared:SSL:10m;
        ssl_session_timeout 10m;
        ssl_session_tickets off;
        
        # Security headers
        add_header Strict-Transport-Security "max-age=31536000; includeSubDomains; preload" always;
        add_header X-Frame-Options DENY 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;
        add_header Content-Security-Policy "default-src 'self'; script-src 'self' 'unsafe-inline'; style-src 'self' 'unsafe-inline'; img-src 'self' data: blob:; font-src 'self'; connect-src 'self'; media-src 'self'; object-src 'none'; child-src 'none'; worker-src 'self'; frame-ancestors 'none'; form-action 'self'; base-uri 'self';" always;
        
        # Health check endpoint (no rate limiting)
        location /health {
            proxy_pass http://mcp-markdown/health;
            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;
            access_log off;
        }
        
        # MCP Markdown Manager on /articles subpath
        location /articles/ {
            # Rate limiting for general access
            limit_req zone=general burst=50 nodelay;
            
            # Remove /articles prefix when forwarding to backend
            rewrite ^/articles/(.*)$ /$1 break;
            
            proxy_pass http://mcp-markdown;
            
            # Essential proxy headers
            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;
            
            # Runtime base path configuration
            proxy_set_header X-Base-Path /articles;
            
            # Performance settings
            proxy_http_version 1.1;
            proxy_set_header Connection "";
            proxy_buffering on;
            proxy_buffer_size 4k;
            proxy_buffers 8 4k;
            proxy_busy_buffers_size 8k;
            
            # Timeouts
            proxy_connect_timeout 30s;
            proxy_send_timeout 60s;
            proxy_read_timeout 60s;
            
            # WebSocket support
            proxy_set_header Upgrade $http_upgrade;
            proxy_set_header Connection "upgrade";
        }
        
        # API endpoints with stricter rate limiting
        location /articles/api/ {
            # Stricter rate limiting for API
            limit_req zone=api burst=20 nodelay;
            
            rewrite ^/articles/(.*)$ /$1 break;
            
            proxy_pass http://mcp-markdown;
            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;
            proxy_set_header X-Base-Path /articles;
            
            # API-specific settings
            proxy_http_version 1.1;
            proxy_set_header Connection "";
            proxy_connect_timeout 10s;
            proxy_send_timeout 30s;
            proxy_read_timeout 30s;
        }
        
        # MCP endpoints with authentication rate limiting
        location /articles/mcp {
            # Even stricter rate limiting for MCP
            limit_req zone=api burst=10 nodelay;
            
            rewrite ^/articles/(.*)$ /$1 break;
            
            proxy_pass http://mcp-markdown;
            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;
            proxy_set_header X-Base-Path /articles;
            
            # MCP-specific settings
            proxy_http_version 1.1;
            proxy_set_header Connection "";
            proxy_connect_timeout 10s;
            proxy_send_timeout 3600s;
            proxy_read_timeout 3600s;

            # SSE/event-stream friendliness
            proxy_buffering off;
            proxy_cache off;

            # Request size cap (adjust if your MCP clients need more)
            client_max_body_size 2m;
        }
        
        # Handle exact /articles redirect to /articles/
        location = /articles {
            return 301 /articles/;
        }
        
        # Static assets caching (if serving directly through nginx)
        location ~* /articles/.*\.(js|css|png|jpg|jpeg|gif|ico|svg|woff|woff2|ttf|eot)$ {
            rewrite ^/articles/(.*)$ /$1 break;
            
            proxy_pass http://mcp-markdown;
            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;
            
            # Long-term caching for static assets
            expires 1y;
            add_header Cache-Control "public, immutable";
            add_header Vary "Accept-Encoding";
            
            # Remove security headers for assets (optional)
            add_header X-Frame-Options "";
            add_header X-Content-Type-Options "";
        }
        
        # Default location
        location / {
            return 200 'Production server running. MCP Markdown Manager available at /articles/';
            add_header Content-Type text/plain;
        }
        
        # Optional: IP-based access control
        # Uncomment and modify for restricted access
        # location /articles/admin/ {
        #     allow 192.168.1.0/24;
        #     allow 10.0.0.0/8;
        #     deny all;
        #     
        #     rewrite ^/articles/(.*)$ /$1 break;
        #     proxy_pass http://mcp-markdown;
        #     # ... other proxy settings
        # }
    }
}
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