Add cost factor fields to ci runners

changelogs/unreleased/210570-add-cost-factors-to-ci-runners.yml

+---
+title: Add cost factor fields to ci runners
+merge_request: 27666
+author:
+type: added

db/migrate/20200320112455_add_cost_factor_fileds_to_ci_runners.rb

+# frozen_string_literal: true
+
+class AddCostFactorFiledsToCiRunners < ActiveRecord::Migration[6.0]
+  include Gitlab::Database::MigrationHelpers
+
+  DOWNTIME = false
+
+  disable_ddl_transaction!
+
+  def up
+    add_column_with_default(:ci_runners, :public_projects_minutes_cost_factor, :float, allow_null: false, default: 0.0)
+    add_column_with_default(:ci_runners, :private_projects_minutes_cost_factor, :float, allow_null: false, default: 1.0)
+  end
+
+  def down
+    remove_column(:ci_runners, :public_projects_minutes_cost_factor)
+    remove_column(:ci_runners, :private_projects_minutes_cost_factor)
+  end
+end

db/structure.sql

@@ -1310,7 +1310,9 @@ CREATE TABLE public.ci_runners (
     ip_address character varying,
     maximum_timeout integer,
     runner_type smallint NOT NULL,
-    token_encrypted character varying
+    token_encrypted character varying,
+    public_projects_minutes_cost_factor double precision DEFAULT 0.0 NOT NULL,
+    private_projects_minutes_cost_factor double precision DEFAULT 1.0 NOT NULL
 );
 
 CREATE SEQUENCE public.ci_runners_id_seq
@@ -12751,6 +12753,7 @@ INSERT INTO "schema_migrations" (version) VALUES
 ('20200318175008'),
 ('20200319123041'),
 ('20200319203901'),
+('20200320112455'),
 ('20200320123839'),
 ('20200323075043'),
 ('20200323122201'),