From 1f52acc1c314bc3f6cf7ad049d2917e273ac2baa Mon Sep 17 00:00:00 2001
From: Logan V <logan2211@gmail.com>
Date: Wed, 9 Mar 2016 20:57:05 -0600
Subject: [PATCH] Add support for Horizon customization module

Allow the deployer to specify a customization module to be uploaded and configured
in Horizon. The process is outlined here in the Horizon documentation:
http://docs.openstack.org/developer/horizon/topics/customizing.html#horizon-customization-module-overrides

Change-Id: Ie638c826abe43f1f484f16e60b90fbe25c684c6e
---
 defaults/main.yml                      |  4 ++++
 tasks/horizon_post_install.yml         | 23 +++++++++++++++++++++++
 templates/horizon_local_settings.py.j2 |  5 +++++
 3 files changed, 32 insertions(+)

diff --git a/defaults/main.yml b/defaults/main.yml
index b3224cba..611f8d7a 100644
--- a/defaults/main.yml
+++ b/defaults/main.yml
@@ -142,6 +142,10 @@ horizon_swift_file_transfer_chunk_size: 524288
 ## Panel
 horizon_default_panel: overview
 
+## Customization module
+## See http://docs.openstack.org/developer/horizon/topics/customizing.html#horizon-customization-module-overrides
+# horizon_customization_module: /local/path/to/customization_module.py
+
 horizon_webroot: /
 
 horizon_listen_ports:
diff --git a/tasks/horizon_post_install.yml b/tasks/horizon_post_install.yml
index 08822a97..42be3853 100644
--- a/tasks/horizon_post_install.yml
+++ b/tasks/horizon_post_install.yml
@@ -92,3 +92,26 @@
   tags:
     - horizon-configs
     - horizon-wsgi-venv
+
+- name: Create customization module directory
+  file:
+    path: "{{ horizon_lib_dir }}/horizon_customization"
+    state: directory
+    owner: "{{ horizon_system_user_name }}"
+    group: "{{ horizon_system_group_name }}"
+    mode: "0755"
+  when: horizon_customization_module is defined
+  tags:
+    - horizon-configs
+
+- name: Drop horizon customization module
+  template:
+    src: "{{ horizon_customization_module }}"
+    dest: "{{ horizon_lib_dir }}/horizon_customization/__init__.py"
+    owner: "{{ horizon_system_user_name }}"
+    group: "{{ horizon_system_group_name }}"
+    mode: "0644"
+  notify: Restart apache2
+  when: horizon_customization_module is defined
+  tags:
+    - horizon-configs
diff --git a/templates/horizon_local_settings.py.j2 b/templates/horizon_local_settings.py.j2
index a5d69c65..75ee0898 100644
--- a/templates/horizon_local_settings.py.j2
+++ b/templates/horizon_local_settings.py.j2
@@ -715,3 +715,8 @@ REST_API_REQUIRED_SETTINGS = ['OPENSTACK_HYPERVISOR_FEATURES']
 {% if horizon_site_name is defined %}
 SITE_BRANDING = '{{ horizon_site_name }}'
 {% endif %}
+
+{% if horizon_customization_module is defined %}
+#custom python module with horizon dashboard theme overrides
+HORIZON_CONFIG["customization_module"] = 'horizon_customization.overrides'
+{% endif %}