Update package max file sizes to sensible defaults

Update the default values for the _max_file_size
limits on package files. The new defaults are better
suited for realistic limits.

changelogs/unreleased/240949-update-package-limit-defaults.yml

+---
+title: Update default plan limits for maximum package file sizes
+merge_request: 40410
+author:
+type: changed

db/migrate/20200825154237_update_package_file_size_plan_limits_defaults.rb

+# frozen_string_literal: true
+
+class UpdatePackageFileSizePlanLimitsDefaults < ActiveRecord::Migration[6.0]
+  DOWNTIME = false
+
+  def change
+    change_column_default(:plan_limits, :maven_max_file_size, from: 50.megabytes, to: 3.gigabytes)
+    change_column_default(:plan_limits, :conan_max_file_size, from: 50.megabytes, to: 3.gigabytes)
+    change_column_default(:plan_limits, :nuget_max_file_size, from: 50.megabytes, to: 500.megabytes)
+    change_column_default(:plan_limits, :npm_max_file_size,   from: 50.megabytes, to: 500.megabytes)
+    change_column_default(:plan_limits, :pypi_max_file_size,  from: 50.megabytes, to: 3.gigabytes)
+  end
+end

db/migrate/20200902135542_update_package_max_file_size_plan_limits.rb

+# frozen_string_literal: true
+
+class UpdatePackageMaxFileSizePlanLimits < ActiveRecord::Migration[6.0]
+  include Gitlab::Database::MigrationHelpers
+
+  DOWNTIME = false
+
+  def up
+    # this is intended to be a no-op for GitLab.com
+    # 5GB is the value for these columns as of 2020-09-02
+    if Gitlab.com?
+      update_all_plan_limits('conan_max_file_size', 5.gigabytes)
+      update_all_plan_limits('maven_max_file_size', 5.gigabytes)
+      update_all_plan_limits('npm_max_file_size', 5.gigabytes)
+      update_all_plan_limits('nuget_max_file_size', 5.gigabytes)
+      update_all_plan_limits('pypi_max_file_size', 5.gigabytes)
+    else
+      update_all_plan_limits('conan_max_file_size', 3.gigabytes)
+      update_all_plan_limits('maven_max_file_size', 3.gigabytes)
+      update_all_plan_limits('npm_max_file_size', 500.megabytes)
+      update_all_plan_limits('nuget_max_file_size', 500.megabytes)
+      update_all_plan_limits('pypi_max_file_size', 3.gigabytes)
+    end
+  end
+
+  def down
+    update_all_plan_limits('conan_max_file_size', 50.megabytes)
+    update_all_plan_limits('maven_max_file_size', 50.megabytes)
+    update_all_plan_limits('npm_max_file_size', 50.megabytes)
+    update_all_plan_limits('nuget_max_file_size', 50.megabytes)
+    update_all_plan_limits('pypi_max_file_size', 50.megabytes)
+  end
+
+  private
+
+  def update_all_plan_limits(limit_name, limit_value)
+    limit_name_quoted = quote_column_name(limit_name)
+    limit_value_quoted = quote(limit_value)
+
+    execute <<~SQL
+      UPDATE plan_limits
+      SET #{limit_name_quoted} = #{limit_value_quoted};
+    SQL
+  end
+end

db/schema_migrations/20200825154237

+ff41fa940a0a5c3627dfec22ed4e704d6edc534edf30883a36aa454210bb3d43
\ No newline at end of file

db/schema_migrations/20200902135542

+58e1e87a9a0159d62db761d8caa91a5bf2cc1a2ccceb1b57ff35b53f7698d08f
\ No newline at end of file

db/structure.sql

@@ -14220,11 +14220,11 @@ CREATE TABLE public.plan_limits (
     ci_max_artifact_size_browser_performance integer DEFAULT 0 NOT NULL,
     ci_max_artifact_size_load_performance integer DEFAULT 0 NOT NULL,
     ci_needs_size_limit integer DEFAULT 50 NOT NULL,
-    conan_max_file_size bigint DEFAULT 52428800 NOT NULL,
-    maven_max_file_size bigint DEFAULT 52428800 NOT NULL,
-    npm_max_file_size bigint DEFAULT 52428800 NOT NULL,
-    nuget_max_file_size bigint DEFAULT 52428800 NOT NULL,
-    pypi_max_file_size bigint DEFAULT 52428800 NOT NULL,
+    conan_max_file_size bigint DEFAULT '3221225472'::bigint NOT NULL,
+    maven_max_file_size bigint DEFAULT '3221225472'::bigint NOT NULL,
+    npm_max_file_size bigint DEFAULT 524288000 NOT NULL,
+    nuget_max_file_size bigint DEFAULT 524288000 NOT NULL,
+    pypi_max_file_size bigint DEFAULT '3221225472'::bigint NOT NULL,
     generic_packages_max_file_size bigint DEFAULT '5368709120'::bigint NOT NULL
 );