Add enabled column to geo_nodes table

db/migrate/20170216000450_add_enabled_to_geo_nodes.rb

+class AddEnabledToGeoNodes < ActiveRecord::Migration
+  include Gitlab::Database::MigrationHelpers
+
+  DOWNTIME = false
+
+  disable_ddl_transaction!
+
+  def up
+    add_column_with_default :geo_nodes, :enabled, :boolean, default: true
+  end
+
+  def down
+    remove_column :geo_nodes, :enabled
+  end
+end

db/schema.rb

@@ -529,6 +529,7 @@ ActiveRecord::Schema.define(version: 20170306180725) do
     t.string "access_key"
     t.string "encrypted_secret_access_key"
     t.string "encrypted_secret_access_key_iv"
+    t.boolean "enabled", default: true, null: false
   end
 
   add_index "geo_nodes", ["access_key"], name: "index_geo_nodes_on_access_key", using: :btree