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rubydaemons

How do I run Ruby daemons as a specific user?

I am trying to run a Ruby daemon using the daemons gem.

It will be started as user 'joe' but needs to change to 'www-data' once it's demonized so that it can access the files it will be working on.

I can see that daemons has change_privilege method for the Application class, but I can't figure out how to use it around this code:

require 'daemons'
Daemons.run(
  File.join(File.dirname(__FILE__), 'worker.rb'),
  {
    :backtrace  => true,
    :log_output => true,
    :dir_mode   => :script,
    :log_dir    => '/tmp',
    :monitor    => true
  }
)
Solution

  • You should not be running as www-data as this is a specific user to apache. You should however add "joe" to your www user group that can access such files.