nginx-ssl-redirect-example.com

server { 
    server_name example.com www.example.com;
    return 301 https://example.com$request_uri;
    listen 80; 
    root /var/www/example.com/htdocs;
} 
 
server { 
    server_name example.com www.example.com;
    listen 443 ssl spdy; 
    access_log /var/log/nginx/example.com.access.log;
    error_log /var/log/nginx/example.com.error.log;
    root /var/www/example.com/htdocs;
    index index.php index.html index.htm; 
    
    #...SSL settings etc.
}