It is a while since I fired up Node Red and I recall it was ‘interesting’ getting it setup but nothing so complicated in the end. I did upgrade to the latest version two days ago and it all went smoothly.
Everything is done via the add-on section.
Node Red on HA comes pre-configured, and several of the standard setup options are commented out on the NR config file as they are controlled by the UI setup in HA.
The add-on most definitely adds a folder ‘node-red’ to the config directory.
Inside this folder is a js file ‘settings’ which should ideally not be altered.
In the HA settings>add-on>node-red>configuration tab are the settings (controlled by HA not the setting file) including part way down SSL, which I have turned off. It did seem rather unnecessary and complicated to get this working, so I left it off.
There was an update to Node-Red 13.0.0 (version 3) two-three days ago. The configuration folder is not deleted when removing (or presumably updating). Is it possible that the recent update has broken the install and new installations are not creating the node-red folder?