Correct default software_type to RootSoftwareInstance.
Was: RootInstanceSoftware.

LAMP instances will request frontend instances but will still publish backend URL if frontend is not available.

Request has to fail if a connection parameter can not be accessed.
(cherry picked from commit 59fbe2ad)

Frontend: Use VirtualHost to separate from custom config, listens to plain http port as well to redirect to https

htdocs can contain user data

Reason : might be dangerous.