1 files changed, 37 insertions, 0 deletions
diff --git a/db/post_migrate/20201026185514_ensure_u2f_registrations_migrated.rb b/db/post_migrate/20201026185514_ensure_u2f_registrations_migrated.rb
new file mode 100644
index 00000000000..121b9fee623
--- /dev/null
+++ b/db/post_migrate/20201026185514_ensure_u2f_registrations_migrated.rb
@@ -0,0 +1,37 @@
+# frozen_string_literal: true
+
+class EnsureU2fRegistrationsMigrated < ActiveRecord::Migration[6.0]
+  include Gitlab::Database::MigrationHelpers
+
+  BACKGROUND_MIGRATION_CLASS = 'MigrateU2fWebauthn'
+  BATCH_SIZE = 100
+  DOWNTIME = false
+
+  disable_ddl_transaction!
+
+  class U2fRegistration < ActiveRecord::Base
+    include EachBatch
+
+    self.table_name = 'u2f_registrations'
+  end
+
+  def up
+    Gitlab::BackgroundMigration.steal(BACKGROUND_MIGRATION_CLASS)
+
+    # Do a manual update in case we lost BG jobs. The expected record count should be 0 or very low.
+    U2fRegistration
+        .joins("LEFT JOIN webauthn_registrations ON webauthn_registrations.u2f_registration_id = u2f_registrations.id")
+        .where("webauthn_registrations.u2f_registration_id IS NULL")
+        .each_batch(of: BATCH_SIZE) do |batch, index|
+      batch.each do |record|
+        Gitlab::BackgroundMigration::MigrateU2fWebauthn.new.perform(record.id, record.id)
+      rescue => e
+        Gitlab::ErrorTracking.track_exception(e, u2f_registration_id: record.id)
+      end
+    end
+  end
+
+  def down
+    # no-op (we can't "unsteal" migrations)
+  end
+end