Concatenating variables and strings in the server configuration file

[roded]

Hello,
Is it possible to somehow concatenate variables and static values in the configuration file?
For example, how can I achive the following:

log_file: $NATS_SERVER_NAME.log

Where $NATS_SERVER_NAME would be replaced by an existing variable?
Thanks.

[MauriceVanVeen]

This is currently not supported. You'd need to create a separate environment variable that contains the .log extension, and then use it as log_file: $NATS_LOG_FILE.

See also: #5320