odoo/ext/3rd-party-addons/website_no_crawler/views/disable_robots.xml

<?xml version="1.0" encoding="UTF-8"?>
<openerp>
    <data>
        <template id="website.robots">
User-agent: *
Disallow: /
Sitemap: <t t-esc="url_root"/>sitemap.xml
        </template>
    </data>
</openerp>