Database/cache alternatives #87
Description
At the moment the Sveltkit NodeJS server is using a in memory least recently used (lru) cache of 2 x 1Gb and the Python backend is using NetCDF files and xarray Python package as database tech.
The cache does not survice restarts of the container and the NetCDF files require a posix file system.
The web application is hosted on Azure so we could look at if there are database services that could replace the in-memory cache with redis or something and the dependency on NetCDF with some databasea like cassandra/