Why is hyphen not allowed in app setting name?

Question

I need to add an application setting spring.session.store-type for my web app. But it is not allowed to have hyphen in the app setting name. What do i do?

Answer 1

Hello @Mago

You are right, Azure App Service App Settings does not respect dash in its name.

That it's because environment variables itself don't support dashes.
Environment variable names used by the utilities in the Shell and Utilities volume of IEEE Std 1003.1-2001 consist solely of uppercase letters, digits, and the '_' (underscore) from the characters defined in Portable Character Set and do not begin with a digit.
http://pubs.opengroup.org/onlinepubs/009695399/basedefs/xbd_chap08.html

There is well-known issue opened in dotnet runtime
https://github.com/dotnet/runtime/issues/63312