14.02.2020, 13:29, "innerspacepilot" <innerspacepi...@gmx.com>: > I would suggest it should be a graceful shutdown ( stopping all daemons, > syncing filesystems and stuff )
yes, of course, this should preceed the powerdown step. a more "correct" solution would be the approach taken by SysV init via the "powerfail" stanza for the "real" process #1 (not those running in containers/other process namespaces). it starts a subprocess to handle the situation, i. e. see if power returns and shutdown ASAP if not. there is no excuse for a Linux process #1 to ignore SIGPWR anyway since that signal is sent by the kernel in powerfail situations (Linux and System V unices), it also makes sense to abuse it to shutdown a container, so i cannot understand why runit just ignores it.
