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MAAS: Metal as a Service

Metal as a Service -- MAAS -- lets you treat physical servers like virtual machines in the cloud.Rather than having to manage each server individually, MAAS turns your bare metal into an elasticcloud-like resource.

What does that mean in practice? Tell MAAS about the machines you want it to manage and it willboot them, check the hardware's okay, and have them waiting for when you need them. You can thenpull nodes up, tear them down and redeploy them at will; just as you can with virtualmachines in the cloud.

When you're ready to deploy a service, MAAS gives your tool of choice (e.g. Ansible, Chef, Puppet,SALT, Juju) the nodes it needs to power that service. It's as simple as that: no need to manuallyprovision, check and, afterwards, clean-up. As your needs change, you can easily scale services upor down. Need more power for your Hadoop cluster for a few hours? Simply tear down one of yourNova compute nodes and redeploy it to Hadoop. When you're done, it's just as easy to give the nodeback to Nova.

MAAS is ideal where you want the flexibility of the cloud, and the hassle-free power of Jujucharms, but you need to deploy to bare metal.

For more information see the MAAS guide.