Usually when you first setup the SharePoint web app you do not have the SSL certificate. So, you setup the SharePoint web app using http:/foo.com
Later on you get the SSL, and update the bindings in IIS for the web application and add https:/foo.com
You then add https://foo.com to the AAM for the SharePoint web application.
Question:
- What AAM level should you put the URL for HTTP and HTTPS? The default level already has http://foo.com.
- Should you update the URL in the search content source from http://foo.com to https://foo.com .