Add auto_ssl_failed to pages domains

changelogs/unreleased/30146-let-s-encrypt-integration-doesn-t-scale-and-does-not-give-any-feedb.yml

+---
+title: Add auto_ssl_failed to pages_domains
+merge_request: 27671
+author:
+type: added

db/migrate/20200320123839_add_letsencrypt_errors_to_pages_domains.rb

+# frozen_string_literal: true
+
+# See https://docs.gitlab.com/ee/development/migration_style_guide.html
+# for more information on how to write migrations for GitLab.
+
+class AddLetsencryptErrorsToPagesDomains < ActiveRecord::Migration[6.0]
+  include Gitlab::Database::MigrationHelpers
+
+  DOWNTIME = false
+
+  disable_ddl_transaction!
+
+  def up
+    add_column_with_default :pages_domains, :auto_ssl_failed, :boolean, default: false
+  end
+
+  def down
+    remove_column :pages_domains, :auto_ssl_failed
+  end
+end

db/structure.sql

@@ -4449,7 +4449,8 @@ CREATE TABLE public.pages_domains (
     certificate_source smallint DEFAULT 0 NOT NULL,
     wildcard boolean DEFAULT false NOT NULL,
     usage smallint DEFAULT 0 NOT NULL,
-    scope smallint DEFAULT 2 NOT NULL
+    scope smallint DEFAULT 2 NOT NULL,
+    auto_ssl_failed boolean DEFAULT false NOT NULL
 );
 
 CREATE SEQUENCE public.pages_domains_id_seq
@@ -12750,6 +12751,7 @@ INSERT INTO "schema_migrations" (version) VALUES
 ('20200318175008'),
 ('20200319123041'),
 ('20200319203901'),
+('20200320123839'),
 ('20200323075043'),
 ('20200323122201'),
 ('20200324115359');