Attaching container to surfshark vpn

Hi guys, I need a little help. I am using surfshark vpn and currently have these 2 containers running :

ilteoood/docker-surfshark
freqtradeorg/freqtrade:stable

I am hoping to run freqtrade thru surfshark vpn but not sure how to do it.

Thanks

In Docker Desktop on Linux? Was choosing this category intentional?