Enable serving static objects from an external storagestatic-objects-external-storage

It consists of two parts:

1. Redirecting users to the configured external storage
1. Allowing the external storage to request the static object(s)
   on behalf of the user by means of specific tokens

Part of https://gitlab.com/gitlab-com/gl-infra/infrastructure/issues/6829

1 files changed, 21 insertions, 0 deletions

diff --git a/db/migrate/20190725183432_add_index_to_index_on_static_object_token.rb b/db/migrate/20190725183432_add_index_to_index_on_static_object_token.rb
new file mode 100644
index 00000000000..423c45b9543
--- /dev/null
+++ b/db/migrate/20190725183432_add_index_to_index_on_static_object_token.rb
@@ -0,0 +1,21 @@
+# frozen_string_literal: true
+
+# See http://doc.gitlab.com/ce/development/migration_style_guide.html
+# for more information on how to write migrations for GitLab.
+
+class AddIndexToIndexOnStaticObjectToken < ActiveRecord::Migration[5.2]
+  include Gitlab::Database::MigrationHelpers
+
+  # Set this constant to true if this migration requires downtime.
+  DOWNTIME = false
+
+  disable_ddl_transaction!
+
+  def up
+    add_concurrent_index :users, :static_object_token, unique: true
+  end
+
+  def down
+    remove_concurrent_index :users, :static_object_token
+  end
+end