What are some alternatives?
When comparing Archipel and Apache CloudStack, you can also consider the following products
Virtualizor - Virtualizor is a powerful web based VPS Control Panel.
LINK Datacenter - LINK Datacenter owns and operates one of the largest data centers in Egypt.
Proxmox Virtual Environment - Proxmox VE is an open-source server virtualization platform to manage KVM virtual machines, LXC, software-defined storage and networking, HA clustering, and multiple other out-of-the-box tools on a single solution.
OpenNebula - The Simplest Cloud Management Experience
Xen Orchestra - A complete web UI for controlling a XenServer or Xen infrastructure.
Scalr - Scalr is cloud management software for public & private infrastructure