Delayed::Plugins::Tracer

OpenTracing auto-instrumentation for Delayed::Job.

Add this line to your application's Gemfile:

gem 'delayed-plugins-tracer'

And then execute:

$ bundle

Or install it yourself as:

$ gem install delayed-plugins-tracer

Run:

$ rails g delayed_job:install_tracer

This will generate a migration that will add a column for span context propagation.

Run the migration:

$ rake db:migrate

Now it's time to initialize the plugin in config/initializers/delayed_job.rb, or other file where you normally initialize DelayedJob. To create a new instance of the tracing plugin you need to specify at least a tracer instance and optionally an active span provider - a proc which returns a current active span. The gem plays nicely with spanmanager.

require "delayed-plugins-tracer"

Delayed::Worker.plugins << Delayed::Plugins::Tracer.build(tracer: OpenTracing.global_tracer,
                                                          active_span: -> { OpenTracing.global_tracer.active_span })

You are all set.

After checking out the repo, run bin/setup to install dependencies. Then, run rake spec to run the tests. You can also run bin/console for an interactive prompt that will allow you to experiment.

To install this gem onto your local machine, run bundle exec rake install. To release a new version, update the version number in version.rb, and then run bundle exec rake release, which will create a git tag for the version, push git commits and tags, and push the .gem file to rubygems.org.

Bug reports and pull requests are welcome on GitHub at https://github.com/iaintshine/ruby-delayed-plugins-tracer. This project is intended to be a safe, welcoming space for collaboration, and contributors are expected to adhere to the Contributor Covenant code of conduct.