Update readme

README.md

@@ -1 +1,42 @@
-# ansible-role-k8s-tripleo
+# ansible-role-k8s-tripleo
+
+You can call this module directly:
+
+```
+- name: Test hieradata
+  parse_tripleo_hiera:
+    hieradata:
+      glance::api::v1: True
+    schema:
+      glance::api::v1: DEFAULT.enable_glance_v1
+  register: result
+
+
+- name: Check values
+  fail:
+    msg: "DEFAULT not in conf_dict"
+  when:
+    - not result.conf_dict['DEFAULT']
+    - not result.conf_dict['DEFAULT']['enable_glance_v1']
+```
+
+Or just include the role:
+
+```
+- name: Test include role
+  include_role:
+    name: 'ansible-role-k8s-tripleo'
+  vars:
+    hieradata:
+      glance::api::v1: True
+    schema:
+      glance::api::v1: DEFAULT.enable_glance_v1
+    fact_variable: 'glance_config'
+
+
+- name: Check fact glance_config
+  fail:
+    msg: "glance_config not set"
+  when:
+    - not glance_config
+```