Parameterized include statements can see top level variables and also be passed specific variables!

Code needs cleanup, but works

examples/base.yml

@@ -3,3 +3,5 @@
   action: command /usr/sbin/setenforce 0
 - name: no iptables
   action: service name=iptables state=stopped
+- name: this is just to show variables work here, favcolor={{ favcolor }}
+  action: command /bin/true

examples/playbook.yml

@@ -5,7 +5,7 @@
     http_port: 80
     max_clients: 200
   tasks:
-  - include: base.yml
+  - include: base.yml favcolor=blue
   - name: write the apache config file using vars set above
     action: template src=/srv/httpd.j2 dest=/etc/httpd.conf
     notify: