Rotating log file with size, maxFiles and path options

In my app path to logs is set by the kibernetes option and looks like path: '/opt/app/logs/backend.log'. I have the requirement to rotate the log file, the file should not exceed 20 Mb, and only one file should be kept. So I am splitting this path with code:

const path = require('path');

  const fileName = path.basename(process.env.log_file);
  const logPath = path.dirname(process.env.log_file);

and create a rotating file stream with these options:

 const stream = rfs.createStream(fileName, {
                size: "20M", // rotate every 20 MegaBytes written
                maxFiles: 1, // only 1 rotated file is allowed
                path: logPath
            });

And I found that in this case rotation doesn’t work. During the test, I am getting a lot of files with names

[painkkiller]

@iccicci thanks for very quick reply, I’ll try it today. But the option maxFiles: 1 worked as I expected (It created 1 rotated file) before I added path. But anyway I’ll try and write about result here.

[iccicci]

The only thing which matters is: you was able to solve the probelm! 😄 Thank you