Add otel and debugger in Rails 7.2

Author: Strech

utils/build/docker/ruby/rails72.Dockerfile

@@ -11,6 +11,7 @@ COPY utils/build/docker/ruby/rails72/Gemfile.lock .
 RUN sed -i -e '/gem .ddtrace./d' Gemfile && bundle config set --local without test development && bundle install
 
 COPY utils/build/docker/ruby/rails72/ .
+COPY utils/build/docker/ruby/shared/rails/ .
 COPY utils/build/docker/ruby/install_ddtrace.sh binaries* /binaries/
 RUN /binaries/install_ddtrace.sh
 

utils/build/docker/ruby/rails72/Gemfile

@@ -7,7 +7,9 @@ gem 'sqlite3', '~> 1.4'
 gem 'puma', '~> 6.0'
 gem 'bootsnap', require: false
 # Tracing related dependencies
-gem 'rdkafka'
+gem 'rdkafka', '~> 0.21.0'
+gem 'opentelemetry-api', '~> 1.5.0'
+gem 'opentelemetry-sdk', '~> 1.8.0'
 # AppSec related dependencies
 gem 'devise', '~> 4.9'
 gem "faraday", '~> 2.13.0'

utils/build/docker/ruby/rails72/Gemfile.lock

@@ -187,6 +187,18 @@ GEM
       racc (~> 1.4)
     nokogiri (1.18.8-x86_64-linux-musl)
       racc (~> 1.4)
+    opentelemetry-api (1.5.0)
+    opentelemetry-common (0.22.0)
+      opentelemetry-api (~> 1.0)
+    opentelemetry-registry (0.4.0)
+      opentelemetry-api (~> 1.1)
+    opentelemetry-sdk (1.8.0)
+      opentelemetry-api (~> 1.1)
+      opentelemetry-common (~> 0.20)
+      opentelemetry-registry (~> 0.2)
+      opentelemetry-semantic_conventions
+    opentelemetry-semantic_conventions (1.11.0)
+      opentelemetry-api (~> 1.0)
     orm_adapter (0.5.0)
     pp (0.6.2)
       prettyprint
@@ -299,10 +311,12 @@ DEPENDENCIES
   devise (~> 4.9)
   dogstatsd-ruby
   faraday (~> 2.13.0)
+  opentelemetry-api
+  opentelemetry-sdk
   pry-byebug
   puma (~> 6.0)
   rails (~> 7.2.2)
-  rdkafka
+  rdkafka (~> 0.21.0)
   sqlite3 (~> 1.4)
 
 RUBY VERSION

utils/build/docker/ruby/rails72/app/controllers/system_test_controller.rb

@@ -243,6 +243,36 @@ def return_headers
     render json: JSON.generate(request_headers), content_type: 'application/json'
   end
 
+  def otel_drop_in_default_propagator_extract
+    # The extract operation succeeds with a custom OpenTelemetry propagator, but not with the default one.
+    # To see this, uncomment the next line, and use that propagator to do the context extraction
+    # propagator = OpenTelemetry::Context::Propagation::CompositeTextMapPropagator.compose_propagators([OpenTelemetry::Trace::Propagation::TraceContext.text_map_propagator, OpenTelemetry::Baggage::Propagation.text_map_propagator])
+    context = OpenTelemetry.propagation.extract(request.headers)
+
+    span_context = OpenTelemetry::Trace.current_span(context).context
+
+    baggage = OpenTelemetry::Baggage.raw_entries()
+    baggage_str = ""
+    baggage.each_pair do |key, value|
+      baggage_str << value << ','
+    end
+    baggage_str.chop!
+
+    result = {}
+    result["trace_id"] = span_context.hex_trace_id.from(16).to_i(16)
+    result["span_id"] = span_context.hex_span_id.to_i(16)
+    result["tracestate"] = span_context.tracestate.to_s
+    result["baggage"] = baggage_str
+
+    render json: JSON.generate(result), content_type: 'application/json'
+  end
+
+  def otel_drop_in_default_propagator_inject
+    headers = {}
+    OpenTelemetry.propagation.inject(headers)
+    render json: JSON.generate(headers), content_type: 'application/json'
+  end
+
   def handle_path_params
     render plain: 'OK'
   end

utils/build/docker/ruby/rails72/config/routes.rb

@@ -50,6 +50,14 @@
   get '/requestdownstream' => 'system_test#request_downstream'
   get '/returnheaders' => 'system_test#return_headers'
 
+  get '/otel_drop_in_default_propagator_extract' => 'system_test#otel_drop_in_default_propagator_extract'
+  get '/otel_drop_in_default_propagator_inject' => 'system_test#otel_drop_in_default_propagator_inject'
+
+  get '/debugger/init' => 'debugger#init'
+  get '/debugger/pii' => 'debugger#pii'
+  get '/debugger/log' => 'debugger#log_probe'
+  get '/debugger/mix/:string_arg/:int_arg' => 'debugger#mix_probe'
+
   get '/rasp/sqli' => 'rasp_sqli#show'
   post '/rasp/sqli' => 'rasp_sqli#show'