I recently deployed a MAAS/Juju environment based on a six nodes cluster, using Ubuntu 12.04 LTS, to run a "proof of concept". I could appreciate how interesting the architecture is, and I'd like to understand if I can really base my future business on this technology. Therefore I'd like to understand more about any involved limitations, constraints and necessities.
In particular I'd like to understand:
- How can MAAS be made High Availability, I.E. deployed over two or more physical nodes able to fail-over ?
- Can the same physical cluster host multiple Juju environments, assuming openstack/virtualization is not used ?
- Can the same physical node host different charms of the same Juju environment, deployed in a standard, reliable way by Juju?