carbonexporter: add support for resourcetotelemetry

Signed-off-by: Bogdan Drutu <[email protected]>

Author: bogdandrutu

.chloggen/addresourcetotelemetry.yaml

@@ -0,0 +1,22 @@
+# Use this changelog template to create an entry for release notes.
+
+# One of 'breaking', 'deprecation', 'new_component', 'enhancement', 'bug_fix'
+change_type: 'enhancement'
+
+# The name of the component, or a single word describing the area of concern, (e.g. filelogreceiver)
+component: "carbonexporter"
+
+# A brief description of the change.  Surround your text with quotes ("") if it needs to start with a backtick (`).
+note: "Add support for resourcetotelemetry"
+
+# Mandatory: One or more tracking issues related to the change. You can use the PR number here if no issue exists.
+issues: [29879]
+
+# If your change doesn't affect end users or the exported elements of any package,
+# you should instead start your pull request title with [chore] or use the "Skip Changelog" label.
+# Optional: The change log or logs in which this entry should be included.
+# e.g. '[user]' or '[user, api]'
+# Include 'user' if the change is relevant to end users.
+# Include 'api' if there is a change to a library API.
+# Default: '[user]'
+change_logs: [user]

exporter/carbonexporter/config.go

@@ -10,6 +10,8 @@ import (
 
 	"go.opentelemetry.io/collector/config/confignet"
 	"go.opentelemetry.io/collector/exporter/exporterhelper"
+
+	"github.com/open-telemetry/opentelemetry-collector-contrib/pkg/resourcetotelemetry"
 )
 
 // Defaults for not specified configuration settings.
@@ -27,6 +29,9 @@ type Config struct {
 	exporterhelper.TimeoutSettings `mapstructure:",squash"`     // squash ensures fields are correctly decoded in embedded struct.
 	QueueConfig                    exporterhelper.QueueSettings `mapstructure:"sending_queue"`
 	RetryConfig                    exporterhelper.RetrySettings `mapstructure:"retry_on_failure"`
+
+	// ResourceToTelemetrySettings defines configuration for converting resource attributes to metric labels.
+	ResourceToTelemetryConfig resourcetotelemetry.Settings `mapstructure:"resource_to_telemetry_conversion"`
 }
 
 func (cfg *Config) Validate() error {

exporter/carbonexporter/config_test.go

@@ -16,6 +16,7 @@ import (
 	"go.opentelemetry.io/collector/exporter/exporterhelper"
 
 	"github.com/open-telemetry/opentelemetry-collector-contrib/exporter/carbonexporter/internal/metadata"
+	"github.com/open-telemetry/opentelemetry-collector-contrib/pkg/resourcetotelemetry"
 )
 
 func TestLoadConfig(t *testing.T) {
@@ -56,6 +57,9 @@ func TestLoadConfig(t *testing.T) {
 					NumConsumers: 2,
 					QueueSize:    10,
 				},
+				ResourceToTelemetryConfig: resourcetotelemetry.Settings{
+					Enabled: true,
+				},
 			},
 		},
 	}

exporter/carbonexporter/go.mod

@@ -4,6 +4,7 @@ go 1.20
 
 require (
 	github.com/open-telemetry/opentelemetry-collector-contrib/internal/common v0.91.0
+	github.com/open-telemetry/opentelemetry-collector-contrib/pkg/resourcetotelemetry v0.91.0
 	github.com/stretchr/testify v1.8.4
 	go.opentelemetry.io/collector/component v0.91.0
 	go.opentelemetry.io/collector/config/confignet v0.91.0
@@ -57,3 +58,13 @@ retract (
 	v0.76.1
 	v0.65.0
 )
+
+replace github.com/open-telemetry/opentelemetry-collector-contrib/pkg/resourcetotelemetry => ../../pkg/resourcetotelemetry
+
+replace github.com/open-telemetry/opentelemetry-collector-contrib/internal/coreinternal => ../../internal/coreinternal
+
+replace github.com/open-telemetry/opentelemetry-collector-contrib/pkg/pdatautil => ../../pkg/pdatautil
+
+replace github.com/open-telemetry/opentelemetry-collector-contrib/pkg/pdatatest => ../../pkg/pdatatest
+
+replace github.com/open-telemetry/opentelemetry-collector-contrib/pkg/golden => ../../pkg/golden

exporter/carbonexporter/testdata/config.yaml

@@ -19,3 +19,5 @@ carbon/allsettings:
     multiplier: 3.14
     max_interval: 60s
     max_elapsed_time: 10m
+  resource_to_telemetry_conversion:
+    enabled: true