tatic inventory groups with host aliases we saw in the previous slide.</p>
              <p>Inventory groups allow you to separate your systems into what, where and when. Let the Ansible host selectors query your inventory and do the work of creating unions, intersections and filter.</p>
              <p>Hosts can belong to as many groups. Ansible inventory does not have to be a hierarchy.</p>
              <p>Note the use of the ranges shorthand under the “what”: development, testing, production</p>
  