Ubuntu provides a tool named Juju that allows us to not only install packages, but to also install and configure the services by way of charms. Charms are a collection of scripts and descriptions on how to install and configure that service. For example, a charm for, say Wordpress, will install the Wordpress PHP files, as well as allow us to attach the Wordpress installation to a MySQL backend, or attach to a load balancer through relationships with those other services.
Log in to a shell on the MAAS server.
Carry out the following steps to install and configure Juju on our MAAS host:
sudo apt-get update sudo apt-get -y ...