I have a web app (oldapp.com) that stores images in a sub-folder (oldapp.com/images) of the DocumentRoot (aka web root). I am rebuilding the app on a different domain (newapp.com) and have created a sub-domain specifically for storing images (images.newapp.com). While I am building, testing, and using the new app, I still need the old app to continue accessing that old image sub-folder. All of this is being done on the same server. I need the new sub-domain to have the same access to the images that are in the old sub-folder.
For this particular case, I do not have the option of changing the DocumentRoot directive. I do have access to Alias and Redirect.
Can I Alias the DocumentRoot of the images.newapp.com vhost to the old sub-directory of another vhost (/var/www/vhost/oldapp.com/httpdocs/images)?
In other words, something like this in the images.newapp.com vhost block:
AliasMatch ^/(.*) /var/www/vhost/oldapp.com/httpdocs/images$1