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nickstenning / honcho

Honcho: a python clone of Foreman. For managing Procfile-based applications.
http://pypi.python.org/pypi/honcho
MIT License
1.59k stars 145 forks source link

Respawn processes with command line argument for start #195

Closed wkentaro closed 2 years ago

wkentaro commented 7 years ago

Why?

In order to respawn terminated process without exporting upstart, for unexpected error in running programs. Ctrl-c still works with this change.

Usage

honcho start --respawn
nickstenning commented 7 years ago

Hi there! Thanks for contributing to Honcho. For a change like this we'd need to add some tests and update the documentation. I also want to make sure I understand the motivation here. What's the situation in which you want Honcho to always respawn your processes?

wkentaro commented 7 years ago

Hi. Ok, I will add/update the tests and documentation.

Current my usecase of Honcho is for uploading a network camera frames to a server, and sometimes the program can die because of the unstable network connection. I use Honcho so that I can start the recording (uploading) multiple cameras' frame by a single command. Of course, it is possible for me to use honcho export (or foreman export) (as stated https://github.com/ddollar/foreman/issues/312#issuecomment-41111311), but it is a bit complicated when I just want to use it at development stage (not application still). Although the program is still the development stage, I need make the program run for days or a week.

wkentaro commented 6 years ago

@nickstenning I added an integration test for this feature, could you please review again?

nickstenning commented 2 years ago

I'm going to go ahead and close this. I don't see the need to add this functionality to Honcho itself. If you have a Procfile which currently contains

main: myprogram

and myprogram is flaky, you can always wrap the execution in a loop:

main: sh -c 'while [ 1 ]; do myprogram; done'

This even has the advantage that you can select whether to respawn each process type individually.