Sounds like the Contractor needs to provide a little more details/documentation....I'd assume the contactor has the container in a repository somewhere, knowing that would probably be the first step to working out how to install it.
I've only been playing around with this stuff for a few hours over the last couple of weekends but I found the below helpful in getting my head around this stuff.
Assuming its a Docker Container then Docker Engine:
1. Project Photon if you want to give it a try Photon OS™ by VMware®
2. Docker Engine if you want to run it on Prod, given Photon is a Tech Preview (Check out the Docker Docs link -> Install -> Docker Engine -> Linux etc ) Docker Docs
I found the Docker training handy as well Free Docker Training - Docker Training