Enable service desk be default

changelogs/unreleased-ee/service_desk_enabled_by_default.yml

+---
+title: Enable service desk be default
+merge_request:
+author:

db/migrate/20170706121518_make_service_desk_enabled_by_default.rb

+# See http://doc.gitlab.com/ce/development/migration_style_guide.html
+# for more information on how to write migrations for GitLab.
+
+class MakeServiceDeskEnabledByDefault < ActiveRecord::Migration
+  include Gitlab::Database::MigrationHelpers
+
+  # Set this constant to true if this migration requires downtime.
+  DOWNTIME = false
+
+  # When a migration requires downtime you **must** uncomment the following
+  # constant and define a short and easy to understand explanation as to why the
+  # migration requires downtime.
+  # DOWNTIME_REASON = ''
+
+  # When using the methods "add_concurrent_index", "remove_concurrent_index" or
+  # "add_column_with_default" you must disable the use of transactions
+  # as these methods can not run in an existing transaction.
+  # When using "add_concurrent_index" or "remove_concurrent_index" methods make sure
+  # that either of them is the _only_ method called in the migration,
+  # any other changes should go in a separate migration.
+  # This ensures that upon failure _only_ the index creation or removing fails
+  # and can be retried or reverted easily.
+  #
+  # To disable transactions uncomment the following line and remove these
+  # comments:
+  # disable_ddl_transaction!
+
+  def up
+    change_column_default :projects, :service_desk_enabled, true
+  end
+
+  def down
+    change_column_default :projects, :service_desk_enabled, nil
+  end
+end

db/schema.rb

@@ -11,7 +11,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 20170703102400) do
+ActiveRecord::Schema.define(version: 20170706121518) do
 
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
@@ -1337,7 +1337,7 @@ ActiveRecord::Schema.define(version: 20170703102400) do
     t.integer "repository_size_limit", limit: 8
     t.boolean "printing_merge_request_link_enabled", default: true, null: false
     t.integer "auto_cancel_pending_pipelines", default: 1, null: false
-    t.boolean "service_desk_enabled"
+    t.boolean "service_desk_enabled", default: true
     t.string "import_jid"
     t.integer "cached_markdown_version"
     t.datetime "last_repository_updated_at"

spec/features/projects/settings/ee/service_desk_setting_spec.rb

 require 'spec_helper'
 
 describe 'Service Desk Setting', js: true, feature: true do
-  let(:project) { create(:project_empty_repo, :private) }
+  let(:project) { create(:project_empty_repo, :private, service_desk_enabled: false) }
   let(:user) { create(:user) }
 
   before do