Hi! On Wed, Feb 1, 2017 at 12:49 AM, Jonathan de Boyne Pollard <j.deboynepollard-newsgro...@ntlworld.com> wrote: > You are talking to people well versed in the idea of chain-loading programs > for affecting process state. The answer here is to simply run runsvdir > through a chain-loading program that sets the process as a subreaper. > > You could write your own, or use the one that I wrote, packaged up, and > published. I called it "local-reaper". > > * http://jdebp.eu./Softwares/nosh/guide/local-reaper.html
Very nice indeed. And as I see below you checked that it works with runsvdir. It seems local-reaper is part of nosh, for which you provide a deb package, but it is not included in Debian distribution. Is this correct? OK, so this could allow me to have a wrapper bash script which makes sure processes inside Docker container are gracefully closed when Docker container is stopped (see my other message to this mailing list), and then I run runsvdir as PID 2 with local reaper chained before it, so that any orphaned process is reaped by runsvdir. Because it seems one cannot simply set: trap "" SIGCHLD in a PID 1 bash script. It seems it does not work. Because otherwise one could just set SIGCHLD handler explicitly to SIG_IGN in PID 1 and leave to the kernel to handle the orphaned processes. Mitar -- http://mitar.tnode.com/ https://twitter.com/mitar_m