Metal as a Service is a tool that allows treating physical servers like virtual machines
(instances) in the cloud.
Spaces
The logical group of subnets that Juju will use to bind deployed services to networks.
Fabrics
Sets of interconnected VLANs that are capable of mutual communication.
Subnet
a “layer 3” broadcast address range identified by a CIDR like 10.1.2.0/24 (IPv4),
or 2001:db8::/32 (IPv6). A subnet can be part of one and only one space.
In MAAS, a subnet can be attached to one VLAN and one space.
Network
we define a network as collection of subnets, all of which are in
principle route-able to one another. It is an abstract, high-level concept,
representing “network domains” with distinct boundaries, like the “office network”,
“home network” or “the Internet”.
VLAN
VLANs are a common way to create logically separate networks using
the same physical infrastructure. While there are different ways to implement VLANs,
here we specifically refer to the IEEE 802.1Q standard.
PaaS
Platform as a Service.
IaaS
Infrastructure as a Service.
SaaS
Software as a Service.
DaaS
Deployment as a Service. Automated deployment of cloud applications by means of
Juju.
BaaS
Backup as a Service.
IPv4
Internet Protocol version 4 (IPv4) is the fourth version of the Internet
Protocol (IP).
IPv6
Internet Protocol version 6 (IPv6) is the most recent version of the
Internet Protocol (IP).
Cloud self-service
User self-provisioning, also known as cloud self-service, is a system that
allows end users to set up and launch applications and services in a cloud
computing environment without the direct intervention of an IT organization
or a service provider.
Many self-provisioning user portals are paired with a service catalog,
which is a list of applications and services that are sanctioned by
an enterprise’s IT organization and available for self-provisioning.
The IT organization can establish several back-end policies that
automatically assign compute, storage and network resources to support the
applications in a service catalog, along with specific security and
performance settings.
