Function provision_script 

pub fn provision_script(spec: &Spec, limit: &[String]) -> String

The controller’s script running the environment’s playbooks, in order, with the inventory at /etc/isoloom/inventory.ini plus each step’s own inventories, as it runs when the environment comes up; isoloom provision runs it again on a running environment.

limit: only these machines (isoloom provision web); every machine when empty.