Glossary¶
- MAAS¶
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.
