1 files changed, 18 insertions, 18 deletions
diff --git a/activestorage/lib/active_storage/engine.rb b/activestorage/lib/active_storage/engine.rb
index b27a027f3a..fc75a8f816 100644
--- a/activestorage/lib/active_storage/engine.rb
+++ b/activestorage/lib/active_storage/engine.rb
@@ -95,25 +95,25 @@ module ActiveStorage
     end
 
     initializer "active_storage.services" do
-      config.after_initialize do |app|
-        ActiveStorage.service_configurations = begin
-          config_file = Pathname.new(Rails.root.join("config/storage.yml"))
-          raise("Couldn't find Active Storage configuration in #{config_file}") unless config_file.exist?
-
-          require "yaml"
-          require "erb"
-
-          YAML.load(ERB.new(config_file.read).result) || {}
-        rescue Psych::SyntaxError => e
-          raise "YAML syntax error occurred while parsing #{config_file}. " \
-                "Please note that YAML must be consistently indented using spaces. Tabs are not allowed. " \
-                "Error: #{e.message}"
-        end
-
-        if global_service_name = app.config.active_storage.service
-          ActiveStorage.service =
+      ActiveSupport.on_load(:active_storage_blob) do
+        if config_choice = Rails.configuration.active_storage.service
+          configs = Rails.configuration.active_storage.service_configurations ||= begin
+            config_file = Pathname.new(Rails.root.join("config/storage.yml"))
+            raise("Couldn't find Active Storage configuration in #{config_file}") unless config_file.exist?
+
+            require "yaml"
+            require "erb"
+
+            YAML.load(ERB.new(config_file.read).result) || {}
+          rescue Psych::SyntaxError => e
+            raise "YAML syntax error occurred while parsing #{config_file}. " \
+                  "Please note that YAML must be consistently indented using spaces. Tabs are not allowed. " \
+                  "Error: #{e.message}"
+          end
+
+          ActiveStorage::Blob.service =
             begin
-              ActiveStorage::Service.configure(global_service_name)
+              ActiveStorage::Service.configure config_choice, configs
             rescue => e
               raise e, "Cannot load `Rails.config.active_storage.service`:\n#{e.message}", e.backtrace
             end