fix empty files (#122)

* fix empty files

fix emtpy default files for ansible 2.9.X by hiding them. Also update
the README for details around what's the defaults/main directory.

* update changelog for 203

CHANGELOG.md

@@ -9,6 +9,12 @@ View the [README](README#version-compatibility) for more on version compatibilit
 
 ## [Unreleased]
 
+## [2.0.3] - 2021-08-17
+
+### Fixed
+
+- Ansible 2.9.x can correctly read empty default files in [121](https://github.com/OSC/ood-ansible/pull/121).
+
 ## [2.0.2] - 2021-08-02
 
 ### Fixed

README.md

@@ -62,6 +62,17 @@ to when configuring or options during building from source or installation.
 Check these files for variables you can override.  Save all these overrides to a file that
 you can then call with `[email protected]`
 
+All the default files are grouped by what they apply to. Some files are for documentation purposes
+and only have comments. They're hidden for ansible 2.9.X compatability and
+[this error loading empty files](https://github.com/OSC/ood-ansible/issues/121).
+
+* `.apps.yml` - configurations for installing apps (hidden because it's emtpy).
+* `build.yml` - configurations for building OnDemand from the source.
+* `install.yml` - configurations for installing OnDemand.
+* `nginx_stage.yml` - configurations that apply to `/etc/ood/config/nginx_stage.yml`
+* `.ondemand.yml` - configurations that apply to `/etc/ood/config/ondemand.d/ondemand.yml` (hidden because it's empty).
+* `ood_portal.yml` - configurations that apply to `/etc/ood/config/ood_portal.yml`
+
 ### Using this role to manage cluster and apps
 
 There are a few variables in this role that enable Open OnDemand customizations