Add ES_PRESET option to customize numbers of shards and replicas (#26483)

Co-authored-by: Eugen Rochko <eugen@zeonfederated.com>

config/application.rb

@@ -41,6 +41,8 @@ require_relative '../lib/mastodon/rack_middleware'
 require_relative '../lib/public_file_server_middleware'
 require_relative '../lib/devise/two_factor_ldap_authenticatable'
 require_relative '../lib/devise/two_factor_pam_authenticatable'
+require_relative '../lib/chewy/settings_extensions'
+require_relative '../lib/chewy/index_extensions'
 require_relative '../lib/chewy/strategy/mastodon'
 require_relative '../lib/chewy/strategy/bypass_with_warning'
 require_relative '../lib/webpacker/manifest_extensions'

config/initializers/chewy.rb

@@ -25,14 +25,6 @@ Chewy.root_strategy              = :bypass_with_warning if Rails.env.production?
 Chewy.request_strategy           = :mastodon
 Chewy.use_after_commit_callbacks = false
 
-module Chewy
-  class << self
-    def enabled?
-      settings[:enabled]
-    end
-  end
-end
-
 # Elasticsearch uses Faraday internally. Faraday interprets the
 # http_proxy env variable by default which leads to issues when
 # Mastodon is run with hidden services enabled, because