nginx.conf

# Enhanced Nginx configuration for CCany with Claude Code optimization
user nginx;
worker_processes auto;
error_log /var/log/nginx/error.log warn;
pid /var/run/nginx.pid;

events {
    worker_connections 1024;
    use epoll;
    multi_accept on;
}

http {
    include /etc/nginx/mime.types;
    default_type application/octet-stream;

    # Logging format optimized for Claude Code requests
    log_format main '$remote_addr - $remote_user [$time_local] "$request" '
                    '$status $body_bytes_sent "$http_referer" '
                    '"$http_user_agent" "$http_x_forwarded_for" '
                    'rt=$request_time uct="$upstream_connect_time" '
                    'uht="$upstream_header_time" urt="$upstream_response_time" '
                    'thinking="$http_thinking" model="$http_model"';

    access_log /var/log/nginx/access.log main;

    # Performance optimizations
    sendfile on;
    tcp_nopush on;
    tcp_nodelay on;
    keepalive_timeout 65;
    types_hash_max_size 2048;
    client_max_body_size 100M;
    client_body_timeout 60s;
    client_header_timeout 60s;
    send_timeout 60s;

    # Gzip compression
    gzip on;
    gzip_vary on;
    gzip_min_length 1000;
    gzip_proxied any;
    gzip_comp_level 6;
    gzip_types
        application/json
        application/javascript
        application/xml+rss
        application/atom+xml
        image/svg+xml
        text/plain
        text/css
        text/xml
        text/javascript
        application/x-javascript
        application/xml;

    # Rate limiting for API endpoints
    limit_req_zone $binary_remote_addr zone=api:10m rate=10r/s;
    limit_req_zone $binary_remote_addr zone=streaming:10m rate=5r/s;

    # Upstream for CCany application
    upstream ccany_backend {
        server ccany:8082;
        keepalive 32;
    }

    # HTTP server block
    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 "no-referrer-when-downgrade" always;
        add_header Content-Security-Policy "default-src 'self' http: https: data: blob: 'unsafe-inline'" always;

        # Health check endpoint (no rate limiting)
        location /health {
            proxy_pass http://ccany_backend;
            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;
            
            # Quick health check timeouts
            proxy_connect_timeout 5s;
            proxy_send_timeout 10s;
            proxy_read_timeout 10s;
        }

        # API endpoints with rate limiting
        location /v1/ {
            limit_req zone=api burst=20 nodelay;
            
            proxy_pass http://ccany_backend;
            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;
            
            # Enhanced timeouts for API requests
            proxy_connect_timeout 30s;
            proxy_send_timeout 120s;
            proxy_read_timeout 120s;
            
            # Buffer settings for large requests
            proxy_buffering on;
            proxy_buffer_size 4k;
            proxy_buffers 8 4k;
            proxy_busy_buffers_size 8k;
            
            # Claude Code specific headers
            proxy_set_header X-Claude-Code-Compatible "true";
            proxy_set_header X-Request-ID $request_id;
        }

        # Streaming endpoints with special handling
        location ~ ^/v1/(messages|chat/completions) {
            limit_req zone=streaming burst=10 nodelay;
            
            proxy_pass http://ccany_backend;
            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;
            
            # Streaming optimizations
            proxy_buffering off;
            proxy_cache off;
            proxy_connect_timeout 30s;
            proxy_send_timeout 300s;
            proxy_read_timeout 300s;
            
            # SSE specific headers
            proxy_set_header Connection '';
            proxy_http_version 1.1;
            
            # Claude Code streaming headers
            proxy_set_header X-Claude-Code-Stream "true";
            proxy_set_header X-Request-ID $request_id;
            
            # Chunked transfer encoding for streaming
            chunked_transfer_encoding on;
        }

        # Static files
        location /static/ {
            proxy_pass http://ccany_backend;
            proxy_set_header Host $host;
            
            # Cache static files
            expires 1d;
            add_header Cache-Control "public, immutable";
        }

        # Admin endpoints (additional security)
        location /admin/ {
            limit_req zone=api burst=5 nodelay;
            
            proxy_pass http://ccany_backend;
            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;
            
            # Strict timeouts for admin
            proxy_connect_timeout 30s;
            proxy_send_timeout 60s;
            proxy_read_timeout 60s;
        }

        # Default location
        location / {
            proxy_pass http://ccany_backend;
            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;
            
            # Default timeouts
            proxy_connect_timeout 30s;
            proxy_send_timeout 60s;
            proxy_read_timeout 60s;
        }

        # Error pages
        error_page 404 /404.html;
        error_page 500 502 503 504 /50x.html;
        
        location = /50x.html {
            root /usr/share/nginx/html;
        }
    }

    # HTTPS server block (if SSL is configured)
    server {
        listen 443 ssl http2;
        server_name localhost;
        
        # SSL configuration
        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-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;
        
        # HSTS header
        add_header Strict-Transport-Security "max-age=31536000; includeSubDomains" always;
        
        # 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 "no-referrer-when-downgrade" always;
        add_header Content-Security-Policy "default-src 'self' http: https: data: blob: 'unsafe-inline'" always;

        # Include all location blocks from HTTP server
        # (Copy all location blocks from the HTTP server here)
        location /health {
            proxy_pass http://ccany_backend;
            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_connect_timeout 5s;
            proxy_send_timeout 10s;
            proxy_read_timeout 10s;
        }

        location /v1/ {
            limit_req zone=api burst=20 nodelay;
            
            proxy_pass http://ccany_backend;
            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_connect_timeout 30s;
            proxy_send_timeout 120s;
            proxy_read_timeout 120s;
            
            proxy_buffering on;
            proxy_buffer_size 4k;
            proxy_buffers 8 4k;
            proxy_busy_buffers_size 8k;
            
            proxy_set_header X-Claude-Code-Compatible "true";
            proxy_set_header X-Request-ID $request_id;
        }

        location ~ ^/v1/(messages|chat/completions) {
            limit_req zone=streaming burst=10 nodelay;
            
            proxy_pass http://ccany_backend;
            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_buffering off;
            proxy_cache off;
            proxy_connect_timeout 30s;
            proxy_send_timeout 300s;
            proxy_read_timeout 300s;
            
            proxy_set_header Connection '';
            proxy_http_version 1.1;
            
            proxy_set_header X-Claude-Code-Stream "true";
            proxy_set_header X-Request-ID $request_id;
            
            chunked_transfer_encoding on;
        }

        location / {
            proxy_pass http://ccany_backend;
            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_connect_timeout 30s;
            proxy_send_timeout 60s;
            proxy_read_timeout 60s;
        }
    }
}