Juju is Devops Distilled
Accelerated provisioning through IAAS has put the spotlight on friction in the deployment, configuration and management of services. This friction can only be overcome via a change in emphasis, from configuring machines to connecting services that can then be scaled independently. In other words, service orchestration.
With Juju, services can be deployed, connected, upgraded and re-used by defining them as Juju charms. Encapsulating service intelligence in charms enables you to separate deep service-specific skills from broad operations management skills.