take care when upgrading! You need to add two variables to your .env file:
use the following if you don't want any access logs (including users' IP addresses):
NGINX_ACCESS_LOG_LOCATION="/dev/null"
NGINX_ERROR_LOG_LOCATION="/dev/null"

use the following if you want logs:
NGINX_ACCESS_LOG_LOCATION="/dev/stdout"
NGINX_ERROR_LOG_LOCATION="/dev/stderr"