Add storage class configuration option for Amazon S3 remote backups

changelogs/unreleased/backup_storage_class.yml

+---
+title: Add storage class configuration option for Amazon S3 remote backups
+merge_request:
+author: Jon Keys

config/gitlab.yml.example

@@ -483,6 +483,8 @@ production: &base
     #   multipart_chunk_size: 104857600
     #   # Turns on AWS Server-Side Encryption with Amazon S3-Managed Keys for backups, this is optional
     #   # encryption: 'AES256'
+    #   # Specifies Amazon S3 storage class to use for backups, this is optional
+    #   # storage_class: 'STANDARD'
 
   ## GitLab Shell settings
   gitlab_shell:

config/initializers/1_settings.rb

@@ -399,6 +399,7 @@ if Settings.backup['upload']['connection']
 end
 Settings.backup['upload']['multipart_chunk_size'] ||= 104857600
 Settings.backup['upload']['encryption'] ||= nil
+Settings.backup['upload']['storage_class'] ||= nil
 
 #
 # Git

doc/raketasks/backup_restore.md

@@ -175,6 +175,8 @@ For installations from source:
       remote_directory: 'my.s3.bucket'
       # Turns on AWS Server-Side Encryption with Amazon S3-Managed Keys for backups, this is optional
       # encryption: 'AES256'
+      # Specifies Amazon S3 storage class to use for backups, this is optional
+      # storage_class: 'STANDARD'
 ```
 
 If you are uploading your backups to S3 you will probably want to create a new

lib/backup/manager.rb

@@ -51,7 +51,8 @@ module Backup
 
       if directory.files.create(key: tar_file, body: File.open(tar_file), public: false,
                                 multipart_chunk_size: Gitlab.config.backup.upload.multipart_chunk_size,
-                                encryption: Gitlab.config.backup.upload.encryption)
+                                encryption: Gitlab.config.backup.upload.encryption,
+                                storage_class: Gitlab.config.backup.upload.storage_class)
         $progress.puts "done".color(:green)
       else
         puts "uploading backup to #{remote_directory} failed".color(:red)