[exporter/awsxray] Add optional telemetry collection to receiver/exporter.

[jefchien]

Component(s)

exporter/awsxray, receiver/awsxray

Is your feature request related to a problem? Please describe.

Similar to datadogexporter's hostmetadata intake, the AWS X-Ray API has PutTelemetryRecords which can be used to collect simple telemetry on the behavior of X-Ray exporting mechanisms. This is currently unsupported in the awsxrayexporter.

Describe the solution you'd like

The TelemetryRecords collect segment received/rejected/sent counts and PutTraceSegment error counts. So, the collection mechanism needs to be shared between the receiver and the exporter.

One option is to create a telemetry collector in internal/aws/xray that can be initialized and managed by the exporter and accessible by the receiver for reporting.

The configuration should make the telemetry opt-in and easy to configure. It should be included in the exporter config.

type TelemetryConfig struct {
	// Enabled determines whether any telemetry should be recorded.
	Enabled bool `mapstructure:"enabled"`
	// IncludeMetadata determines whether metadata (instance ID, hostname, resourceARN)
	// should be included in the telemetry.
	IncludeMetadata bool `mapstructure:"include_metadata"`
}

Describe alternatives you've considered

This could also be done with an extension and would not be as simple to configure. The telemetry could also be opt-out.

Additional context

No response

[jefchien]

Please assign this to me.

[github-actions]

Pinging code owners:

• exporter/awsxray: @willarmiros
• receiver/awsxray: @willarmiros

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