[tutorial Rougail 4.1] conditional disabled variable

NFS configuration
=================

Need could be activated. In this case, we need to add server domain name

---
env_nfs:
  configure: true
  server: another-nfs.silique.fr

Examples of Ops inventory file
==============================

1/ INVALID, only with Rougail:

---
env_nfs:
  configure: false
  server: another-nfs.silique.fr

2/ VALID:

---
env_nfs:
  configure: true

Rougail/socle/06-nfs.yml

@@ -9,3 +9,14 @@ env_nfs:
       a NFS server
     type: boolean
     default: false
+  server:
+    description: NFS server name
+    help: Configure NFS server only if env_nfs.configure is true
+    type: domainname
+    default: nfs.silique.fr
+    disabled:
+      type: jinja
+      jinja: |
+        {% if not socle.env_nfs.configure %}
+        NFS is disabled
+        {% endif %}