Redir 3 forwarded ports are not being cleared correctly

[ethervoid]

Hi,

We've been experiencing problems with redir, version 3.1, not being cleared after a vagrant reload

I checked the code and found that is being done here.

The problem is that is getting the wrong PIDs from here

For example, my redir PID for port 3000 is 10459 but in the file redir_3000 is stored the PID 10456

I'm going to paste some outputs here:

ethervo+ 10459  0.0  0.0   6656   108 ?        Ss   16:46   0:00 redir 127.0.0.1 3000 10.0.3.131 3000

and the file cat

cat /media/data/development/vm/cartodb_lxc_xenial/.vagrant/machines/default/lxc/pids/redir_3000.pid                                                                                                                       [16:47:18]
10456

It seems like this part is not returning a correct PID for that process

Looks like spawn could be returning the parent pid instead of the final one?

[ethervoid]

More info:

If you go to irb and do:

irb(main):002:0> spawn 'redir 127.0.0.1:3000 10.0.3.131:3000 2>/dev/null'
=> 29411

but if you make a pgrep you get

❯ pgrep redir                                                                                           [17:37:35]
29413

Looks like the problem is the child process detaching after daemonizing itself

[ghost]

Thanks for the detailed report. It turns out that "foreground mode" was the key. I've noticed that it was a new option compared to v2.x, so that was a hint... and it was it.

I've pushed a fix on master. Could you try and confirm the fix?

[ethervoid]

Tested, seems to be working fine :) thank you

[fgrehm]

Hey, sorry for the silence here but this project is looking for maintainers :sweat_smile:

As per https://github.com/fgrehm/vagrant-lxc/issues/499, I've added the ignored label and will close this issue. Thanks for the interest in the project and LMK if you want to step up and take ownership of this project on that other issue :wave: