Remote library configuration support and ITR::Runner

README.md

@@ -175,7 +175,7 @@ Webmock accordingly.
 ```ruby
 # when using agentless mode
 # note to use the correct datadog site (e.g. datadoghq.eu, etc)
-WebMock.disable_net_connect!(:allow => "citestcycle-intake.datadoghq.com")
+WebMock.disable_net_connect!(:allow => /datadoghq.com/)
 
 # when using agent
 WebMock.disable_net_connect!(:allow_localhost => true)
@@ -199,7 +199,7 @@ VCR.configure do |config|
 
   # when using agentless mode
   # note to use the correct datadog site (e.g. datadoghq.eu, etc)
-  config.ignore_hosts "citestcycle-intake.datadoghq.com"
+  config.ignore_hosts "citestcycle-intake.datadoghq.com", "api.datadoghq.com"
 end
 ```
 

lib/datadog/ci/configuration/components.rb

@@ -1,13 +1,15 @@
 # frozen_string_literal: true
 
 require_relative "../ext/settings"
+require_relative "../itr/runner"
 require_relative "../test_visibility/flush"
 require_relative "../test_visibility/recorder"
 require_relative "../test_visibility/null_recorder"
 require_relative "../test_visibility/serializers/factories/test_level"
 require_relative "../test_visibility/serializers/factories/test_suite_level"
 require_relative "../test_visibility/transport"
 require_relative "../transport/api/builder"
+require_relative "../transport/remote_settings_api"
 
 module Datadog
   module CI
@@ -59,13 +61,30 @@ def activate_ci!(settings)
             writer_options[:buffer_size] = 10_000
 
             settings.tracing.test_mode.async = true
+          else
+            # only legacy APM protocol is supported, so no test suite level visibility
+            settings.ci.force_test_level_visibility = true
+
+            # ITR is not supported with APM protocol
+            settings.ci.itr_enabled = false
           end
 
           settings.tracing.test_mode.writer_options = writer_options
 
+          itr = Datadog::CI::ITR::Runner.new(
+            enabled: settings.ci.enabled && settings.ci.itr_enabled
+          )
+
+          remote_settings_api = Transport::RemoteSettingsApi.new(
+            api: test_visibility_api,
+            dd_env: settings.env
+          )
+
           # CI visibility recorder global instance
           @ci_recorder = TestVisibility::Recorder.new(
-            test_suite_level_visibility_enabled: !settings.ci.force_test_level_visibility
+            test_suite_level_visibility_enabled: !settings.ci.force_test_level_visibility,
+            itr: itr,
+            remote_settings_api: remote_settings_api
           )
         end
 
@@ -95,9 +114,6 @@ def build_test_visibility_api(settings)
               Datadog.logger.debug(
                 "Old agent version detected, no evp_proxy support. Forcing test level visibility mode"
               )
-
-              # CI visibility is still enabled but in legacy test level visibility mode
-              settings.ci.force_test_level_visibility = true
             end
           end
 

lib/datadog/ci/configuration/settings.rb

@@ -55,6 +55,12 @@ def self.add_settings!(base)
                 end
               end
 
+              option :itr_enabled do |o|
+                o.type :bool
+                o.env CI::Ext::Settings::ENV_ITR_ENABLED
+                o.default false
+              end
+
               define_method(:instrument) do |integration_name, options = {}, &block|
                 return unless enabled
 

lib/datadog/ci/ext/settings.rb

@@ -10,6 +10,7 @@ module Settings
         ENV_AGENTLESS_URL = "DD_CIVISIBILITY_AGENTLESS_URL"
         ENV_EXPERIMENTAL_TEST_SUITE_LEVEL_VISIBILITY_ENABLED = "DD_CIVISIBILITY_EXPERIMENTAL_TEST_SUITE_LEVEL_VISIBILITY_ENABLED"
         ENV_FORCE_TEST_LEVEL_VISIBILITY = "DD_CIVISIBILITY_FORCE_TEST_LEVEL_VISIBILITY"
+        ENV_ITR_ENABLED = "DD_CIVISIBILITY_ITR_ENABLED"
 
         # Source: https://docs.datadoghq.com/getting_started/site/
         DD_SITE_ALLOWLIST = [

lib/datadog/ci/ext/test.rb

@@ -23,6 +23,13 @@ module Test
         TAG_CODEOWNERS = "test.codeowners"
         TAG_PARAMETERS = "test.parameters"
 
+        # ITR tags
+        TAG_ITR_TEST_SKIPPING_ENABLED = "test.itr.tests_skipping.enabled"
+        TAG_ITR_TEST_SKIPPING_TYPE = "test.itr.tests_skipping.type"
+
+        # Code coverage tags
+        TAG_CODE_COVERAGE_ENABLED = "test.code_coverage.enabled"
+
         # those tags are special and used to correlate tests with the test sessions, suites, and modules
         # they are transient and not sent to the backend
         TAG_TEST_SESSION_ID = "_test.session_id"
@@ -43,6 +50,8 @@ module Test
         TAG_SPAN_KIND = "span.kind"
         SPAN_KIND_TEST = "test"
 
+        ITR_TEST_SKIPPING_MODE = "test"
+
         # test status as recognized by Datadog
         module Status
           PASS = "pass"

lib/datadog/ci/ext/transport.rb

@@ -23,7 +23,18 @@ module Transport
         TEST_VISIBILITY_INTAKE_HOST_PREFIX = "citestcycle-intake"
         TEST_VISIBILITY_INTAKE_PATH = "/api/v2/citestcycle"
 
+        DD_API_HOST_PREFIX = "api"
+        DD_API_SETTINGS_PATH = "/api/v2/ci/libraries/tests/services/setting"
+        DD_API_SETTINGS_TYPE = "ci_app_test_service_libraries_settings"
+        DD_API_SETTINGS_RESPONSE_DIG_KEYS = %w[data attributes].freeze
+        DD_API_SETTINGS_RESPONSE_ITR_ENABLED_KEY = "itr_enabled"
+        DD_API_SETTINGS_RESPONSE_CODE_COVERAGE_KEY = "code_coverage"
+        DD_API_SETTINGS_RESPONSE_TESTS_SKIPPING_KEY = "tests_skipping"
+        DD_API_SETTINGS_RESPONSE_REQUIRE_GIT_KEY = "require_git"
+        DD_API_SETTINGS_RESPONSE_DEFAULT = {DD_API_SETTINGS_RESPONSE_ITR_ENABLED_KEY => false}.freeze
+
         CONTENT_TYPE_MESSAGEPACK = "application/msgpack"
+        CONTENT_TYPE_JSON = "application/json"
         CONTENT_ENCODING_GZIP = "gzip"
       end
     end

lib/datadog/ci/itr/runner.rb

@@ -0,0 +1,67 @@
+# frozen_string_literal: true
+
+require_relative "../ext/test"
+require_relative "../ext/transport"
+
+module Datadog
+  module CI
+    module ITR
+      # Intelligent test runner implementation
+      # Integrates with backend to provide test impact analysis data and
+      # skip tests that are not impacted by the changes
+      class Runner
+        def initialize(
+          enabled: false
+        )
+          @enabled = enabled
+          @test_skipping_enabled = false
+          @code_coverage_enabled = false
+
+          Datadog.logger.debug("ITR Runner initialized with enabled: #{@enabled}")
+        end
+
+        def configure(remote_configuration, test_session)
+          Datadog.logger.debug("Configuring ITR Runner with remote configuration: #{remote_configuration}")
+
+          @enabled = convert_to_bool(
+            remote_configuration.fetch(Ext::Transport::DD_API_SETTINGS_RESPONSE_ITR_ENABLED_KEY, false)
+          )
+          @test_skipping_enabled = @enabled && convert_to_bool(
+            remote_configuration.fetch(Ext::Transport::DD_API_SETTINGS_RESPONSE_TESTS_SKIPPING_KEY, false)
+          )
+          @code_coverage_enabled = @enabled && convert_to_bool(
+            remote_configuration.fetch(Ext::Transport::DD_API_SETTINGS_RESPONSE_CODE_COVERAGE_KEY, false)
+          )
+
+          test_session.set_tag(Ext::Test::TAG_ITR_TEST_SKIPPING_ENABLED, @test_skipping_enabled)
+          # currently we set this tag when ITR requires collecting code coverage
+          # this will change as soon as we implement total code coverage support in this library
+          test_session.set_tag(Ext::Test::TAG_CODE_COVERAGE_ENABLED, @code_coverage_enabled)
+
+          # we skip tests, not suites
+          test_session.set_tag(Ext::Test::TAG_ITR_TEST_SKIPPING_TYPE, Ext::Test::ITR_TEST_SKIPPING_MODE)
+
+          Datadog.logger.debug("Configured ITR Runner with enabled: #{@enabled}, skipping_tests: #{@test_skipping_enabled}, code_coverage: #{@code_coverage_enabled}")
+        end
+
+        def enabled?
+          @enabled
+        end
+
+        def skipping_tests?
+          @test_skipping_enabled
+        end
+
+        def code_coverage?
+          @code_coverage_enabled
+        end
+
+        private
+
+        def convert_to_bool(value)
+          value.to_s == "true"
+        end
+      end
+    end
+  end
+end

lib/datadog/ci/span.rb

@@ -121,6 +121,48 @@ def set_tags(tags)
         tracer_span.set_tags(tags)
       end
 
+      # Returns the git repository URL extracted from the environment.
+      # @return [String] the repository URL.
+      def git_repository_url
+        tracer_span.get_tag(Ext::Git::TAG_REPOSITORY_URL)
+      end
+
+      # Returns the latest commit SHA extracted from the environment.
+      # @return [String] the commit SHA of the last commit.
+      def git_commit_sha
+        tracer_span.get_tag(Ext::Git::TAG_COMMIT_SHA)
+      end
+
+      # Returns the git branch name extracted from the environment.
+      # @return [String] the branch.
+      def git_branch
+        tracer_span.get_tag(Ext::Git::TAG_BRANCH)
+      end
+
+      # Returns the OS architecture extracted from the environment.
+      # @return [String] OS arch.
+      def os_architecture
+        tracer_span.get_tag(Ext::Test::TAG_OS_ARCHITECTURE)
+      end
+
+      # Returns the OS platform extracted from the environment.
+      # @return [String] OS platform.
+      def os_platform
+        tracer_span.get_tag(Ext::Test::TAG_OS_PLATFORM)
+      end
+
+      # Returns the runtime name extracted from the environment.
+      # @return [String] runtime name.
+      def runtime_name
+        tracer_span.get_tag(Ext::Test::TAG_RUNTIME_NAME)
+      end
+
+      # Returns the runtime version extracted from the environment.
+      # @return [String] runtime version.
+      def runtime_version
+        tracer_span.get_tag(Ext::Test::TAG_RUNTIME_VERSION)
+      end
+
       def set_environment_runtime_tags
         tracer_span.set_tag(Ext::Test::TAG_OS_ARCHITECTURE, ::RbConfig::CONFIG["host_cpu"])
         tracer_span.set_tag(Ext::Test::TAG_OS_PLATFORM, ::RbConfig::CONFIG["host_os"])

lib/datadog/ci/test_session.rb

@@ -26,6 +26,14 @@ def name
         get_tag(Ext::Test::TAG_COMMAND)
       end
 
+      def skipping_tests?
+        get_tag(Ext::Test::TAG_ITR_TEST_SKIPPING_ENABLED) == "true"
+      end
+
+      def code_coverage?
+        get_tag(Ext::Test::TAG_CODE_COVERAGE_ENABLED) == "true"
+      end
+
       # Return the test session tags that could be inherited by sub-spans
       # @return [Hash] the tags to be inherited by sub-spans.
       def inheritable_tags

lib/datadog/ci/test_visibility/recorder.rb

@@ -29,15 +29,19 @@ class Recorder
         attr_reader :environment_tags, :test_suite_level_visibility_enabled
 
         def initialize(
-          test_suite_level_visibility_enabled: false,
+          itr:, remote_settings_api:, test_suite_level_visibility_enabled: false,
           codeowners: Codeowners::Parser.new(Utils::Git.root).parse
         )
           @test_suite_level_visibility_enabled = test_suite_level_visibility_enabled
 
           @environment_tags = Ext::Environment.tags(ENV).freeze
           @local_context = Context::Local.new
           @global_context = Context::Global.new
+
           @codeowners = codeowners
+
+          @itr = itr
+          @remote_settings_api = remote_settings_api
         end
 
         def start_test_session(service: nil, tags: {})
@@ -49,7 +53,11 @@ def start_test_session(service: nil, tags: {})
             )
             set_session_context(tags, tracer_span)
 
-            build_test_session(tracer_span, tags)
+            test_session = build_test_session(tracer_span, tags)
+
+            configure_library(test_session)
+
+            test_session
           end
         end
 
@@ -175,8 +183,20 @@ def deactivate_test_suite(test_suite_name)
           @global_context.deactivate_test_suite!(test_suite_name)
         end
 
+        def itr_enabled?
+          @itr.enabled?
+        end
+
         private
 
+        def configure_library(test_session)
+          # this will change when EFD is implemented
+          return unless itr_enabled?
+
+          remote_configuration = @remote_settings_api.fetch_library_settings(test_session)
+          @itr.configure(remote_configuration.payload, test_session)
+        end
+
         def skip_tracing(block = nil)
           block.call(nil) if block
         end

lib/datadog/ci/test_visibility/transport.rb

@@ -68,7 +68,7 @@ def send_traces(traces)
         private
 
         def send_payload(encoded_payload)
-          api.request(
+          api.citestcycle_request(
             path: Datadog::CI::Ext::Transport::TEST_VISIBILITY_INTAKE_PATH,
             payload: encoded_payload
           )

lib/datadog/ci/transport/api/agentless.rb

@@ -10,15 +10,48 @@ module Api
         class Agentless < Base
           attr_reader :api_key
 
-          def initialize(api_key:, http:)
+          def initialize(api_key:, citestcycle_url:, api_url:)
             @api_key = api_key
+            @citestcycle_http = build_http_client(citestcycle_url, compress: true)
+            @api_http = build_http_client(api_url, compress: false)
+          end
+
+          def citestcycle_request(path:, payload:, headers: {}, verb: "post")
+            super
+
+            perform_request(@citestcycle_http, path: path, payload: payload, headers: headers, verb: verb)
+          end
+
+          def api_request(path:, payload:, headers: {}, verb: "post")
+            super
 
-            super(http: http)
+            perform_request(@api_http, path: path, payload: payload, headers: headers, verb: verb)
           end
 
           private
 
-          def headers
+          def perform_request(http_client, path:, payload:, headers:, verb:)
+            http_client.request(
+              path: path,
+              payload: payload,
+              headers: headers_with_default(headers),
+              verb: verb
+            )
+          end
+
+          def build_http_client(url, compress:)
+            uri = URI.parse(url)
+            raise "Invalid agentless mode URL: #{url}" if uri.host.nil?
+
+            Datadog::CI::Transport::HTTP.new(
+              host: uri.host,
+              port: uri.port,
+              ssl: uri.scheme == "https" || uri.port == 443,
+              compress: compress
+            )
+          end
+
+          def default_headers
             headers = super
             headers[Ext::Transport::HEADER_DD_API_KEY] = api_key
             headers