Location of certificate files

When looking through the tutorial for tls enabling consul, the config fragments seem to reference the pem file(s) ca_file, cert_file, key_file without a path. I can add one to get it to work, but I am curious, is there a default location where the file can be referenced as in the example?

My guess is it would probably just be interpreted as relative to the current directory when the server was started.

Thanks. I guess it’s just curious to me that there isn’t a cert dir location to set anywhere, but I guess it’s fine giving full pathnames in that case.