Added rake task that allows cloud storage migration (#6075)

Author: farhatahmad

config/environments/development.rb

@@ -52,7 +52,9 @@
   end
 
   # Store uploaded files on the local file system (see config/storage.yml for options).
-  config.active_storage.service = if ENV['S3_ACCESS_KEY_ID'].present? && ENV['S3_ENDPOINT'].present?
+  config.active_storage.service = if ENV['AS_MIRROR_PRIMARY'].present?
+                                    :mirror
+                                  elsif ENV['S3_ACCESS_KEY_ID'].present? && ENV['S3_ENDPOINT'].present?
                                     :s3
                                   elsif ENV['S3_ACCESS_KEY_ID'].present?
                                     :amazon

config/environments/production.rb

@@ -55,7 +55,9 @@
   # config.action_dispatch.x_sendfile_header = "X-Accel-Redirect" # for NGINX
 
   # Store uploaded files on the local file system (see config/storage.yml for options).
-  config.active_storage.service = if ENV['S3_ACCESS_KEY_ID'].present? && ENV['S3_ENDPOINT'].present?
+  config.active_storage.service = if ENV['AS_MIRROR_PRIMARY'].present?
+                                    :mirror
+                                  elsif ENV['S3_ACCESS_KEY_ID'].present? && ENV['S3_ENDPOINT'].present?
                                     :s3
                                   elsif ENV['S3_ACCESS_KEY_ID'].present?
                                     :amazon

config/storage.yml

@@ -62,7 +62,7 @@ google:
 #   storage_access_key: <%= Rails.application.credentials.dig(:azure_storage, :storage_access_key) %>
 #   container: your_container_name-<%= Rails.env %>
 
-# mirror:
-#   service: Mirror
-#   primary: local
-#   mirrors: [ amazon, google, microsoft ]
+mirror:
+  service: Mirror
+  primary: <%= ENV['AS_MIRROR_PRIMARY'] %>
+  mirrors: [ <%= ENV['AS_MIRROR_SECONDARY'] %> ]

lib/tasks/attachments.rake

@@ -0,0 +1,33 @@
+# BigBlueButton open source conferencing system - http://www.bigbluebutton.org/.
+#
+# Copyright (c) 2022 BigBlueButton Inc. and by respective authors (see below).
+#
+# This program is free software; you can redistribute it and/or modify it under the
+# terms of the GNU Lesser General Public License as published by the Free Software
+# Foundation; either version 3.0 of the License, or (at your option) any later
+# version.
+#
+# Greenlight is distributed in the hope that it will be useful, but WITHOUT ANY
+# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public License along
+# with Greenlight; if not, see <http://www.gnu.org/licenses/>.
+
+# frozen_string_literal: true
+
+require_relative 'task_helpers'
+
+namespace :attachments do
+  desc 'Checks that the application was configured correctly'
+  task start: :environment do
+    ActiveStorage::Blob.update_all(service_name: 'mirror') # rubocop:disable Rails/SkipsModelValidations
+    ActiveStorage::Blob.find_each(&:mirror_later)
+    success('Started mirroring process...')
+  end
+
+  task :finish, %i[new_service] => :environment do |_task, args|
+    ActiveStorage::Blob.update_all(service_name: args[:new_service]) # rubocop:disable Rails/SkipsModelValidations
+    success('Finished mirroring process...')
+  end
+end