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Ruby: process and thread lifecycle hooks.
This feature allows one to specify blocks of code that are called when certain lifecycle events occur. A user configures a "hooks" property on the app configuration that points to a script. This script will be evaluated on boot and should contain blocks of code that will be called on specific events. An example of configuration: { "type": "ruby", "processes": 2, "threads": 2, "user": "vagrant", "group": "vagrant", "script": "config.ru", "hooks": "hooks.rb", "working_directory": "/home/vagrant/unit/rbhooks", "environment": { "GEM_HOME": "/home/vagrant/.ruby" } } An example of a valid "hooks.rb" file follows: File.write("./hooks.#{Process.pid}", "hooks evaluated") on_worker_boot do File.write("./worker_boot.#{Process.pid}", "worker booted") end on_thread_boot do File.write("./thread_boot.#{Process.pid}.#{Thread.current.object_id}", "thread booted") end on_thread_shutdown do File.write("./thread_shutdown.#{Process.pid}.#{Thread.current.object_id}", "thread shutdown") end on_worker_shutdown do File.write("./worker_shutdown.#{Process.pid}", "worker shutdown") end This closes issue #535 on GitHub.
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