docker-compose failed in environment with no direct internet connections.

[hannibalking824]

Good day.

I have an Ubuntu 18.04 server.
My server connects to the internet via squid proxy (I suppose it may be the case). Unfortunately, I have no ability to provide it a direct access to the internet.
I've configured my docker to use proxy via systemd environment settings and it seems to run fine with other applications.
The issue is - when i'm trying to run docker-compose up, i'm getting this Error (screenshot below).
Is there any suggestions how to fix it?
Thanks!