draft for filter to get ip from hostname

filter_plugin/ip_from_inventory.py

@@ -0,0 +1,15 @@
+from ansible.hostvars import HostVars
+
+def ip_from_inventory(hostname):
+    """
+    replace this ``{{ hostvars[hostname]['ansible_host'] }}``
+    with something nicer such as `` {{ hostname | ip_from_inventory }}``
+    """
+    return HostVars[hostname]['ansible_host']
+
+class FilterModule(object):
+    def filter(self):
+        return {
+                'ip_from_inventory': ip_from_inventory,
+        }
+