Dont deamonize

[emilebosch]

Hey in order to have our workers to run efficiently in docker we would love to have it not demonize when starting. So it can say pid one1. Is there an option to do this?

[betamatt]

If I'm understanding the question correctly then you're in a situation similar to people running DJ on Heroku. Use the run command instead of start, which will prevent the the parent process from daemonizing.

[albus522]

Or run via rake https://github.com/collectiveidea/delayed_job#running-jobs

[rbalman]

But I don't know how to make --pid-dir work while starting delayed_job as run or the rake task jobs:work. I needed the pid file because I want to fire certain signal to the pid while deploying my codebase. Guys any suggestions?

[zx1986]

@javanux or try this base image? https://github.com/phusion/baseimage-docker

[albus522]

You can write a pid file manually by creating a simple plugin. Put something like this in the delayed job initializer or anywhere that is guaranteed to load.

class WritePidfile < Delayed::Plugin
  callbacks do |lifecycle|
    lifecycle.before(:execute) do |_worker|
      File.write("path/to/pidfile", "w") {|f| f.puts Process.pid }
    end
  end
end

[jdufresne]

You can write a pid file manually by creating a simple plugin. Put something like this in the delayed job initializer or anywhere that is guaranteed to load.

class WritePidfile < Delayed::Plugin
  callbacks do |lifecycle|
    lifecycle.before(:execute) do |_worker|
      File.write("path/to/pidfile", "w") {|f| f.puts Process.pid }
    end
  end
end

Thanks for this suggestion. I needed something like this and thought it might be useful to other people. So I put it into PR #1202.