apiVersion: v1
kind: ConfigMap
metadata:
  name: nginx-config
data:
  default.conf: |
    # Upstream with keepalive
    upstream php-upstream {
        server php-fpm:9000;
        keepalive 32;
    }

    server {
        listen 80;
        server_name _;
        root /var/www/html;
        index index.php index.html;

        # Gzip compression
        gzip on;
        gzip_vary on;
        gzip_min_length 1024;
        gzip_types text/plain text/css application/json application/javascript text/xml application/xml;

        # Buffer settings
        client_body_buffer_size 16k;
        client_max_body_size 10m;

        location / {
            try_files $uri $uri/ /index.php?$query_string;
        }

        location ~ \.php$ {
            fastcgi_pass php-upstream;
            fastcgi_index index.php;
            fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
            include fastcgi_params;

            # FastCGI optimization
            fastcgi_keep_conn on;
            fastcgi_buffer_size 32k;
            fastcgi_buffers 16 16k;
            fastcgi_busy_buffers_size 32k;
            fastcgi_read_timeout 60s;
            fastcgi_send_timeout 60s;

            # Connection reuse
            fastcgi_connect_timeout 5s;
        }

        location ~ /\.ht {
            deny all;
        }

        # Static files caching
        location ~* \.(jpg|jpeg|png|gif|ico|css|js)$ {
            expires 7d;
            add_header Cache-Control "public, immutable";
        }
    }