[tutorial Rougail 3.0] a validator

OMOGEN configuration
====================

Ask the keystore filename. This file must has jks extension.

---
env_omogen:
  keystore: filename.jks

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

1/ INVALID:

---
env_omogen:
  keystore: filename.txt

Rougail/socle/05-omogen.yml

@@ -0,0 +1,15 @@
+---
+version: '1.0'
+env_omogen:
+  description: Configure OMOGEN
+  keystore:
+    description: Keystore filename to access to OMOGEN
+    help: This filename must ends with "kjs" extension
+    test:
+      - java.jks
+    validators:
+      - type: jinja
+        jinja: |
+          {% if not socle.env_omogen.keystore.endswith('.jks') %}
+          the extension must be "jks"
+          {% endif %}