error_page 400  /errorpages/400.html;
error_page 401  /errorpages/401.html;
error_page 403  /errorpages/403.html;
error_page 404  /errorpages/404.html;
error_page 500 502 503 504  /errorpages/50x.html;

location ^~ /errorpages {
    root /usr/share/nginx;
}