[thredds] Thredds 4.6 - Cache folder

[Ifremer <enzo.pauvy@xxxxxxxxxx>]

Dear all,

On Thredds 4.6, is there any way to change the cache directory, other 
than defining a symlink?
I would like a read-only folder for my content directory, mounted as a 
volume for my dockered Thredds.

According to TDS Configuration file 
<https://docs.unidata.ucar.edu/tds/4.6/adminguide/reference/ThreddsConfigXMLFile.html>, 
I can define a directory for each cache.
But it would be easier to redefine a single path, right?

Kind regards,
Enzo