[erlang-questions] how to run rebar3 release with "-config /path/my_sys.config"

[Luke Bakken]

I did some investigation into the runner script that ships with relx
and compared it to rebar's. The end result is this PR:

https://github.com/erlware/relx/pull/617

Thanks,
Luke

> After some more digging it looks like this works fine for starting the application in “console” or “foreground” mode, but not when I do a “start”.
>
> Mark.
>
> > On Oct 25, 2017, at 1:12 PM, Mark Geib <> wrote:
> >
> > I just recently migrated an erlang project to use rebar3 from rebar. With the generated rebar release I was able to start the application with “/some_path/bin/my_app start -config “/some_other_path/my_app.config” which allowed for dynamic configuration. With rebar3 I don’t seem to have the same behavior, it always uses /some_path/releases/<version>/sys.config included during the release build.
> >
> > Is there a way to something equivalent in rebar3.?
> >
> > Thanks,
> >
> > Mark.