How do you handle operating system signals? like when your autoscale group decides to scala down and you get a SIGTERM with some time to handle it, what do you

How do you handle operating system signals? like when your autoscale group decides to scala down and you get a SIGTERM with some time to handle it, what do you do? This might help: from the release notes to Erlang R20 (i.e. latest): A new event manager to handle a subset of OS signals in Erlang It's documented in the docs for kernel here: http://erlang.org/documentation/doc-9.0-rc2/lib/kernel-5.3/doc/html/kernel_app.html#erl_signal_server http://erlang.org/documentation/doc-9.0-rc2/lib/kernel-5.3/d... You can write your own handler, which you'll install using gen_event (or :gen_event in Elixir), but even if you don't, there's a default handler which handles 3 signals, SIGUSER1, SIGQUIT and SIGTERM. Per the link above, SIGTERM is handled like so: The default handler will terminate Erlang normally. This is equivalent to calling init:stop(). Also worth a look, to see how os:set_signal/2 works (this allows you to decide which signals should be ignored, handled by the default handler or handled by your own handler): http://erlang.org/documentation/doc-9.0-rc2/lib/kernel-5.3/doc/html/os.html#set_signal-2 http://erlang.org/documentation/doc-9.0-rc2/lib/kernel-5.3/d... (And a shout out to legoscia on Stack Overflow for letting us know this might be available: https://stackoverflow.com/a/41872533 https://stackoverflow.com/a/41872533 )