fix: Add Concurrent Ruby dependency to Rails

Rails relies on concurrent ruby for features like async queries. This results in inconsistent traces since context is not properly propagated between threads. This change adds Concurrent Ruby as a transitive dependency to mitigate confusion when uses the rails instrumentation independent of the all gem.
open-telemetry · Jan 8, 2025 · 21eee2c · 21eee2c
1 parent e3c020f
commit 21eee2c
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diff --git a/instrumentation/rails/lib/opentelemetry/instrumentation/rails.rb b/instrumentation/rails/lib/opentelemetry/instrumentation/rails.rb
@@ -21,5 +21,6 @@ module Rails
 require 'opentelemetry-instrumentation-action_mailer'
 require 'opentelemetry-instrumentation-active_record'
 require 'opentelemetry-instrumentation-active_job'
+require 'opentelemetry-instrumentation-concurrent_ruby'
 require_relative 'rails/instrumentation'
 require_relative 'rails/version'
diff --git a/instrumentation/rails/opentelemetry-instrumentation-rails.gemspec b/instrumentation/rails/opentelemetry-instrumentation-rails.gemspec
@@ -33,6 +33,7 @@ Gem::Specification.new do |spec|
   spec.add_dependency 'opentelemetry-instrumentation-active_record', '~> 0.8.0'
   spec.add_dependency 'opentelemetry-instrumentation-active_support', '~> 0.7.0'
   spec.add_dependency 'opentelemetry-instrumentation-base', '~> 0.22.1'
+  spec.add_dependency 'opentelemetry-instrumentation-concurrent_ruby', '~> 0.24.4'
 
   spec.add_development_dependency 'appraisal', '~> 2.5'
   spec.add_development_dependency 'bundler', '~> 2.4'