title: Create instance from backup on google cloud sql
body: <p>I would have two questions related to cloud sql backups:</p>
  
  <ol>
  <li>Are backups removed together with instance or maybe they are left for some days?</li>
  <li>If no, is it possible to create new instance from backup of already gone instance?</li>
  </ol>
  
  <p>I would expect it possible but looks like backups are only listable under the specific instance and there is no option to start new instance from existing backup.</p>