Merge branch 'redis_settings'

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

Conflicts:
	CHANGELOG

CHANGELOG

@@ -7,6 +7,8 @@ v 7.3.0
   - Better search with filtering, pagination etc
   - Added a checkbox to toggle line wrapping in diff (Yuriy Glukhov)
   - Prevent project stars duplication when fork project
+  - Support Unix domain sockets for Redis
+  - Store session Redis keys in 'session:gitlab:' namespace
 
 v 7.2.0
   - Explore page

config/environments/production.rb

@@ -45,16 +45,6 @@ Gitlab::Application.configure do
   # Use a different logger for distributed setups
   # config.logger = ActiveSupport::TaggedLogging.new(SyslogLogger.new)
 
-  # Use a different cache store in production
-  config_file = Rails.root.join('config', 'resque.yml')
-
-  resque_url = if File.exists?(config_file)
-                 YAML.load_file(config_file)[Rails.env]
-               else
-                 "redis://localhost:6379"
-               end
-  config.cache_store = :redis_store, resque_url, {namespace: 'cache:gitlab'}
-
   # Enable serving of images, stylesheets, and JavaScripts from an asset server
   # config.action_controller.asset_host = "http://assets.example.com"
 

config/initializers/7_cache_settings.rb

@@ -0,0 +1,20 @@
+Gitlab::Application.configure do
+  redis_config_file = Rails.root.join('config', 'resque.yml')
+
+  redis_url_string = if File.exists?(redis_config_file)
+                       YAML.load_file(redis_config_file)[Rails.env]
+                     else
+                       "redis://localhost:6379"
+                     end
+
+  # Redis::Store does not handle Unix sockets well, so let's do it for them
+  redis_config_hash = Redis::Store::Factory.extract_host_options_from_uri(redis_url_string)
+  redis_uri = URI.parse(redis_url_string)
+  if redis_uri.scheme == 'unix'
+    redis_config_hash[:path] = redis_uri.path
+  end
+
+  redis_config_hash[:namespace] = 'cache:gitlab'
+
+  config.cache_store = :redis_store, redis_config_hash
+end

config/initializers/session_store.rb

@@ -2,7 +2,7 @@
 
 Gitlab::Application.config.session_store(
   :redis_store, # Using the cookie_store would enable session replay attacks.
-  servers: Gitlab::Application.config.cache_store[1], # re-use the Redis config from the Rails cache store
+  servers: Gitlab::Application.config.cache_store[1].merge(namespace: 'session:gitlab'), # re-use the Redis config from the Rails cache store
   key: '_gitlab_session',
   secure: Gitlab.config.gitlab.https,
   httponly: true,