I have an additional question:
4) As a cloud interface is currently required for the system to work, we need to setup one. We found the setup guide for the cloud (AWS_EC2_MG_Cloud_Setup_Guide.pdf) using AWS.
Can we install the cloud right on the gateway (Yocto) or on a local workstation (Ubuntu 14.04) without internet connection and excluding AWS? Do you have additional info on this topic?