option to send SIGKILL?

[frankstratton]

I have a process that doesn't always respond to the SIGTERM signal and remains running; however invoker shuts down and loses track of this PID leaving an orphaned process around; I've used foreman/forego in the past and it tries to send a SIGTERM, waits a while and then issues SIGKILL on any remaining processes before stopping which cleans up everything correctly. Is it possible to do the same with invoker?

[nisanthchunduru]

We can add a stop_strategy option (inspired by a similar option in https://github.com/kostya/eye)

[someprocess]
command = someprocess
# Send a TERM signal. Wait for 20 seconds.
# If the process is still alive, send a KILL signal.
stop_strategy = "TERM, 20, KILL"

@iffyuva Any ideas?

[frankstratton]

Something like that would be great for my use case!

[swanandp]

I think this should be added to the CLI, i.e. invoker signal sidekiq USR1

[gnufied]

It already is implemented and has been there since very beginning:

invoker remove sidekiq -s 9

Which will remove sidekiq with signal 9. However when you will Invoker and it quits, all processes are attempted to be killed via TERM signal.

[swanandp]

@gnufied I was thinking, instead of just 9, invoker should act as a shim for process commands, e.g it would be useful to send SIGTTIN to a process, and not remove it.