# Host Server Provisioning

## Layering structure

### Base Operating System (Type I hypervisor)

* [ProxmoxVE](https://www.proxmox.com/en/proxmox-ve) with a free license is not production-ready but the management interface is better.
* [**ESXi**](https://www.vmware.com/products/esxi-and-esx.html) comes with a free license with every vmware account and is production-ready but it's management interface (WebUI) is not easy to navigate.

### Virtual Machines

#### Ubuntu Server 22.04.2 LTS (IoT Server)

* [Docker](https://docs.docker.com/engine/install/ubuntu/) host

  The containers are introduced [here](https://federated.gitbook.io/federated-learning-iot/server/server_structure).
* [Portainer](https://install.portainer.io/) for management of Docker Containers
* [Ansible](https://docs.ansible.com/) for all automated jobs

#### ML Server (OS Debian based, GPU Passthrough)

* **Docker**
  * Nginx Reverse Proxy
  * Django
* **Portainer edge**