problem with deployment using Docker-Compose on Ubuntu

Hi, I'm trying to install NopCommerce on Ubuntu using Docker-Compose.yml provided with the source code.

It goes for a while until at the step 42 (out of 48): RUN apk add --no-cache icu-libs, I get the following message:
/bin/sh: 1: apk: not found
After this the installation gets interrupted. Is this because apk is not available on Ubuntu? Is Ubuntu supported? What is your recommendation?

Hi! Did you find any solution?

I've just commented out this line from docker file as I realized that it was needed for international support (multiple languages e.t.c.) and I din't need this as my site is English only.