Will there be configuration file support in next release?

[Shumen]

Since it's important to support conf-file as a server daemon program, instead of command line arguments.

[ecashin]

There is no plan to add that, because the vblade is deliberately minimal. You'll even notice that the vblade itself always runs in the foreground, and that vbladed is a shell script that daemonizes the vblade. That separation of concerns is often advocated, e.g., by Dan Bernstein, the author of daemontools.

I can imagine that if a config file was necessary, then one could simply use daemontools (or something like it that is newer, like runit) along with a library like Augeas to build the command line for vblade based on a config file.

If you try it and have success, I encourage you to make a pull request showing how you did it in Markdown documentation, and we can add the document to vblade.