Support COMPRESS_ENABLED

The COMPRESS_ENABLED option controls whether the compression should be
enabled. This adds support for this option.

Change-Id: Ie3e48afc50770b121daacb90d8c70cf241efd330

manifests/init.pp

@@ -171,6 +171,10 @@
 #    header which links to the value of this setting.
 #    Defaults to undef
 #
+#  [*compress_enabled*]
+#    (optional) Boolean to enable compression.
+#    Defaults to True
+#
 #  [*compress_offline*]
 #    (optional) Boolean to enable offline compress of assets.
 #    Defaults to True
@@ -588,6 +592,7 @@ class horizon(
   $ssl_verify_client                                = undef,
   $wsgi_processes                                   = $facts['os_workers'],
   $wsgi_threads                                     = '1',
+  Boolean $compress_enabled                         = true,
   Boolean $compress_offline                         = true,
   # TODO(tkajinam) Consider adding more strict validation about key-value
   Hash $hypervisor_options                          = {},

releasenotes/notes/compress_enabled-9597ee6f04403fa3.yaml

@@ -0,0 +1,4 @@
+---
+features:
+  - |
+    The new ``horizon::compress_enabled`` parameter has been added.

spec/classes/horizon_init_spec.rb

@@ -56,6 +56,7 @@ describe 'horizon' do
           "            'handlers': ['file'],",
           'SESSION_TIMEOUT = 3600',
           'TOKEN_TIMEOUT_MARGIN = 0',
+          'COMPRESS_ENABLED = True',
           'COMPRESS_OFFLINE = True',
           "FILE_UPLOAD_TEMP_DIR = '/tmp'",
         ])
@@ -110,6 +111,7 @@ describe 'horizon' do
           :api_result_limit                 => 2000,
           :api_result_page_size             => 40,
           :dropdown_max_items               => 123,
+          :compress_enabled                 => false,
           :compress_offline                 => false,
           :hypervisor_options               => {'can_set_mount_point' => false, 'can_set_password' => true },
           :cinder_options                   => {'enable_backup' => true },
@@ -215,6 +217,7 @@ describe 'horizon' do
           "            'handlers': ['console', 'syslog'],",
           'SESSION_TIMEOUT = 1800',
           'TOKEN_TIMEOUT_MARGIN = 60',
+          'COMPRESS_ENABLED = False',
           'COMPRESS_OFFLINE = False',
           "FILE_UPLOAD_TEMP_DIR = '/var/spool/horizon'",
           'OVERVIEW_DAYS_RANGE = 1',

templates/local_settings.py.erb

@@ -1044,6 +1044,11 @@ SESSION_TIMEOUT = <%= @session_timeout %>
 
 TOKEN_TIMEOUT_MARGIN = <%= @token_timeout_margin %>
 
+# This setting controls whether or not compression is enabled. Disabling
+# compression makes Horizon considerably slower, but makes it much easier
+# to debug JS and CSS changes
+COMPRESS_ENABLED = <%= @compress_enabled.to_s.capitalize %>
+
 # The Ubuntu package includes pre-compressed JS and compiled CSS to allow
 # offline compression by default.  To enable online compression, install
 # the python-lesscpy package and disable the following option.