1 files changed, 32 insertions, 0 deletions
diff --git a/db/post_migrate/20190909141517_update_cs_vulnerability_confidence_column.rb b/db/post_migrate/20190909141517_update_cs_vulnerability_confidence_column.rb
new file mode 100644
index 00000000000..befa08e0cb6
--- /dev/null
+++ b/db/post_migrate/20190909141517_update_cs_vulnerability_confidence_column.rb
@@ -0,0 +1,32 @@
+# 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 UpdateCsVulnerabilityConfidenceColumn < ActiveRecord::Migration[5.2]
+  include Gitlab::Database::MigrationHelpers
+
+  disable_ddl_transaction!
+
+  DOWNTIME = false
+  BATCH_SIZE = 1_000
+  INTERVAL = 5.minutes
+
+  # 137_424 records to be updated on GitLab.com,
+  # giving us an estimated runtime of 12 hours.
+  def up
+    # no-op in CE
+    return unless Gitlab.ee?
+
+    migration = Gitlab::BackgroundMigration::UpdateVulnerabilityConfidence
+    migration_name = migration.to_s.demodulize
+    relation = migration::Occurrence.container_scanning_reports_with_medium_confidence
+    queue_background_migration_jobs_by_range_at_intervals(relation,
+                                                          migration_name,
+                                                          INTERVAL,
+                                                          batch_size: BATCH_SIZE)
+  end
+
+  def down
+    # no-op
+  end
+end