feat: GRPC instrumentation

.toys/.data/releases.yml

@@ -31,6 +31,10 @@ commit_lint:
 #  *  changelog_path: Path to CHANGLEOG.md relative to the gem directory.
 #     (Required only if it is not in the expected location.)
 gems:
+  - name: opentelemetry-instrumentation-grpc
+    directory: instrumentation/grpc
+    version_constant: [OpenTelemetry, Instrumentation, GRPC, VERSION]
+
   - name: opentelemetry-instrumentation-active_job
     directory: instrumentation/active_job
     version_constant: [OpenTelemetry, Instrumentation, ActiveJob, VERSION]

instrumentation/all/Gemfile

@@ -8,6 +8,7 @@ source 'https://rubygems.org'
 
 gemspec
 
+gem 'opentelemetry-instrumentation-grpc', path: '../grpc'
 gem 'opentelemetry-api', path: '../../api'
 gem 'opentelemetry-common', path: '../../common'
 gem 'opentelemetry-instrumentation-active_job', path: '../active_job'

instrumentation/all/lib/opentelemetry/instrumentation/all.rb

@@ -4,6 +4,7 @@
 #
 # SPDX-License-Identifier: Apache-2.0
 
+require 'opentelemetry-instrumentation-grpc'
 require 'opentelemetry-instrumentation-active_job'
 require 'opentelemetry-instrumentation-bunny'
 require 'opentelemetry-instrumentation-lmdb'

instrumentation/all/opentelemetry-instrumentation-all.gemspec

@@ -26,6 +26,7 @@ Gem::Specification.new do |spec|
   spec.require_paths = ['lib']
   spec.required_ruby_version = '>= 2.5.0'
 
+  spec.add_dependency 'opentelemetry-instrumentation-grpc', '~> 0.0.0'
   spec.add_dependency 'opentelemetry-instrumentation-active_job', '~> 0.1.0'
   spec.add_dependency 'opentelemetry-instrumentation-active_model_serializers', '~> 0.18.1'
   spec.add_dependency 'opentelemetry-instrumentation-bunny', '~> 0.18.1'

instrumentation/grpc/.rubocop.yml

@@ -0,0 +1,5 @@
+inherit_from: ../.rubocop-examples.yml
+
+Naming/FileName:
+  Exclude:
+    - "lib/opentelemetry-instrumentation-grpc.rb"

instrumentation/grpc/.yardopts

@@ -0,0 +1,9 @@
+--no-private
+--title=OpenTelemetry Grpc Instrumentation
+--markup=markdown
+--main=README.md
+./lib/opentelemetry/instrumentation/**/*.rb
+./lib/opentelemetry/instrumentation.rb
+-
+README.md
+CHANGELOG.md

instrumentation/grpc/CHANGELOG.md

@@ -0,0 +1 @@
+# Release History: opentelemetry-instrumentation-grpc

instrumentation/grpc/Gemfile

@@ -0,0 +1,16 @@
+# frozen_string_literal: true
+
+# Copyright The OpenTelemetry Authors
+#
+# SPDX-License-Identifier: Apache-2.0
+
+source 'https://rubygems.org'
+
+gemspec
+
+gem 'opentelemetry-api', path: '../../api'
+
+group :test do
+  gem 'opentelemetry-common', path: '../../common'
+  gem 'opentelemetry-sdk', path: '../../sdk'
+end

instrumentation/grpc/LICENSE

@@ -0,0 +1,201 @@
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instrumentation/grpc/README.md

@@ -0,0 +1,52 @@
+# OpenTelemetry GRPC Instrumentation
+
+Todo: Add a description.
+
+## How do I get started?
+
+Install the gem using:
+
+```
+gem install opentelemetry-instrumentation-grpc
+```
+
+Or, if you use [bundler][bundler-home], include `opentelemetry-instrumentation-grpc` in your `Gemfile`.
+
+## Usage
+
+To use the instrumentation, call `use` with the name of the instrumentation:
+
+```ruby
+OpenTelemetry::SDK.configure do |c|
+  c.use 'OpenTelemetry::Instrumentation::GRPC'
+end
+```
+
+Alternatively, you can also call `use_all` to install all the available instrumentation.
+
+```ruby
+OpenTelemetry::SDK.configure do |c|
+  c.use_all
+end
+```
+
+## Examples
+
+Example usage can be seen in the `./example/trace_demonstration.rb` file [here](https://github.com/open-telemetry/opentelemetry-ruby/blob/main/instrumentation/grpc/example/trace_demonstration.rb)
+
+## How can I get involved?
+
+The `opentelemetry-instrumentation-grpc` gem source is [on github][repo-github], along with related gems including `opentelemetry-api` and `opentelemetry-sdk`.
+
+The OpenTelemetry Ruby gems are maintained by the OpenTelemetry-Ruby special interest group (SIG). You can get involved by joining us in [GitHub Discussions][discussions-url] or attending our weekly meeting. See the [meeting calendar][community-meetings] for dates and times. For more information on this and other language SIGs, see the OpenTelemetry [community page][ruby-sig].
+
+## License
+
+The `opentelemetry-instrumentation-grpc` gem is distributed under the Apache 2.0 license. See [LICENSE][license-github] for more information.
+
+[bundler-home]: https://bundler.io
+[repo-github]: https://github.com/open-telemetry/opentelemetry-ruby
+[license-github]: https://github.com/open-telemetry/opentelemetry-ruby/blob/main/LICENSE
+[ruby-sig]: https://github.com/open-telemetry/community#ruby-sig
+[community-meetings]: https://github.com/open-telemetry/community#community-meetings
+[discussions-url]: https://github.com/open-telemetry/opentelemetry-ruby/discussions

instrumentation/grpc/Rakefile

@@ -0,0 +1,28 @@
+# frozen_string_literal: true
+
+# Copyright The OpenTelemetry Authors
+#
+# SPDX-License-Identifier: Apache-2.0
+
+require 'bundler/gem_tasks'
+require 'rake/testtask'
+require 'yard'
+require 'rubocop/rake_task'
+
+RuboCop::RakeTask.new
+
+Rake::TestTask.new :test do |t|
+  t.libs << 'test'
+  t.libs << 'lib'
+  t.test_files = FileList['test/**/*_test.rb']
+end
+
+YARD::Rake::YardocTask.new do |t|
+  t.stats_options = ['--list-undoc']
+end
+
+if RUBY_ENGINE == 'truffleruby'
+  task default: %i[test]
+else
+  task default: %i[test rubocop yard]
+end

instrumentation/grpc/example/Gemfile

@@ -0,0 +1,11 @@
+# frozen_string_literal: true
+
+source 'https://rubygems.org'
+
+gem 'grpc'
+gem 'opentelemetry-api', path: '../../../api'
+gem 'opentelemetry-instrumentation-grpc', path: '../../../instrumentation/grpc'
+gem 'opentelemetry-sdk', path: '../../../sdk'
+
+gem 'opentelemetry-exporter-otlp', path: '../../../exporter/otlp'
+gem 'pry-byebug'

instrumentation/grpc/example/README.md

@@ -0,0 +1,8 @@
+Examples for OpenTelemetry GRPC auto-instrumentation. Adapted from the [gRPC tutorial][grpc-tutorial].
+
+1. Launch the server: `./route_guide_server.rb data/route_guide_db.json`
+1. In a separate terminal, launch the client: `./route_guide_client.rb data/route_guide_db.json`
+
+Both the client and the server should print traces to your terminals.
+
+[grpc-tutorial]: https://grpc.io/docs/languages/ruby/basics