feat: add active_storage instrumentation to rails

[ymtdzzz]

related: #1307, #1313

This PR adds active_storage instrumentation implemented in #1313 to rails.
After this is released, I'll create another PR to add require to all (here).

Test

Gemfile in your application

gem "opentelemetry-sdk"
gem "opentelemetry-exporter-otlp"
gem "opentelemetry-instrumentation-rails", path: "../../development/github.com/ymtdzzz/opentelemetry-ruby-contrib/instrumentation/rails" # path to this branch

config/initializers/opentelemetry.rb in your application

require "opentelemetry/sdk"

# install all compatible instrumentation with default configuration
OpenTelemetry::SDK.configure do |c|
  c.service_name = "otel-ruby-development"
  c.use_all
end

Startup logs

I, [2025-02-03T17:03:24.400701 #84276]  INFO -- : Instrumentation: OpenTelemetry::Instrumentation::Rack was successfully installed with the following options {:allowed_request_headers=>[], :allowed_response_headers=>[], :application=>nil, :record_frontend_span=>false, :untraced_endpoints=>[], :url_quantization=>nil, :untraced_requests=>nil, :response_propagators=>[], :use_rack_events=>true, :allowed_rack_request_headers=>{}, :allowed_rack_response_headers=>{}}
I, [2025-02-03T17:03:24.401840 #84276]  INFO -- : Instrumentation: OpenTelemetry::Instrumentation::ActionPack was successfully installed with the following options {:span_naming=>:semconv}
I, [2025-02-03T17:03:24.402104 #84276]  INFO -- : Instrumentation: OpenTelemetry::Instrumentation::ActiveSupport was successfully installed with the following options {}
I, [2025-02-03T17:03:24.402374 #84276]  INFO -- : Instrumentation: OpenTelemetry::Instrumentation::ActionView was successfully installed with the following options {:disallowed_notification_payload_keys=>[], :notification_payload_transform=>nil, :legacy_span_names=>false}
I, [2025-02-03T17:03:24.402648 #84276]  INFO -- : Instrumentation: OpenTelemetry::Instrumentation::ActionMailer was successfully installed with the following options {:disallowed_notification_payload_keys=>["email.to.address", "email.from.address", "email.cc.address", "email.bcc.address"], :disallowed_process_payload_keys=>[], :notification_payload_transform=>#<Proc:0x0000000114b3ee48 /Users/yosuke.matsuda/.asdf/installs/ruby/3.2.5/lib/ruby/gems/3.2.0/gems/opentelemetry-instrumentation-action_mailer-0.4.0/lib/opentelemetry/instrumentation/action_mailer/instrumentation.rb:95 (lambda)>, :process_payload_transform=>nil, :email_address=>:omit}
I, [2025-02-03T17:03:24.403772 #84276]  INFO -- : Instrumentation: OpenTelemetry::Instrumentation::ActiveRecord was successfully installed with the following options {}
I, [2025-02-03T17:03:24.403974 #84276]  INFO -- : Instrumentation: OpenTelemetry::Instrumentation::ActiveStorage was successfully installed with the following options {:disallowed_notification_payload_keys=>["active_storage.key", "active_storage.url"], :notification_payload_transform=>#<Proc:0x0000000114b38188 /Users/yosuke.matsuda/.asdf/installs/ruby/3.2.5/lib/ruby/gems/3.2.0/gems/opentelemetry-instrumentation-active_storage-0.1.0/lib/opentelemetry/instrumentation/active_storage/instrumentation.rb:98 (lambda)>, :key=>:omit, :url=>:omit}
I, [2025-02-03T17:03:24.404917 #84276]  INFO -- : Instrumentation: OpenTelemetry::Instrumentation::ActiveJob was successfully installed with the following options {:propagation_style=>:link, :force_flush=>false, :span_naming=>:queue}
I, [2025-02-03T17:03:24.405133 #84276]  INFO -- : Instrumentation: OpenTelemetry::Instrumentation::ConcurrentRuby was successfully installed with the following options {}
I, [2025-02-03T17:03:24.405154 #84276]  INFO -- : Instrumentation: OpenTelemetry::Instrumentation::Rails was successfully installed with the following options {}

Generated trace