1 files changed, 24 insertions, 0 deletions
diff --git a/db/post_migrate/20201103192526_schedule_populate_has_vulnerabilities.rb b/db/post_migrate/20201103192526_schedule_populate_has_vulnerabilities.rb
new file mode 100644
index 00000000000..bed90af09dc
--- /dev/null
+++ b/db/post_migrate/20201103192526_schedule_populate_has_vulnerabilities.rb
@@ -0,0 +1,24 @@
+# frozen_string_literal: true
+
+class SchedulePopulateHasVulnerabilities < ActiveRecord::Migration[6.0]
+  include Gitlab::Database::MigrationHelpers
+
+  DOWNTIME = false
+  BATCH_SIZE = 1_000
+  DELAY_INTERVAL = 2.minutes
+  MIGRATION_CLASS = 'PopulateHasVulnerabilities'
+
+  disable_ddl_transaction!
+
+  def up
+    Gitlab::BackgroundMigration::PopulateHasVulnerabilities::Vulnerability.distinct.each_batch(of: BATCH_SIZE, column: :project_id) do |batch, index|
+      project_ids = batch.pluck(:project_id)
+
+      migrate_in(index * DELAY_INTERVAL, MIGRATION_CLASS, project_ids)
+    end
+  end
+
+  def down
+    # no-op
+  end
+end