How to fix nginx "file not found" when running php-fpm in alpine image docker

Описание

i installed nginx and php-fpm in apline image, and i created a file called index.php under /var/www/localhost/htdocs/, when i open on the browser, http://localhost:1166/index.php it shown an error : file not found

the issue is caused by your nginx configuration is bad.
this video will help you how to fix nginx configuration correctly