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* sdk autoloading * use instrumentation initializers * basic sdk + autoloading documentation * exampler filter from config * configuration default types
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,18 @@ | ||
| <?php | ||
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| declare(strict_types=1); | ||
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| putenv('OTEL_PHP_AUTOLOAD_ENABLED=true'); | ||
| putenv('OTEL_TRACES_EXPORTER=otlp'); | ||
| putenv('OTEL_EXPORTER_OTLP_PROTOCOL=grpc'); | ||
| putenv('OTEL_METRICS_EXPORTER=otlp'); | ||
| putenv('OTEL_EXPORTER_OTLP_METRICS_PROTOCOL=grpc'); | ||
| putenv('OTEL_EXPORTER_OTLP_ENDPOINT=http://collector:4317'); | ||
| putenv('OTEL_PHP_TRACES_PROCESSOR=batch'); | ||
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| // Composer autoloader will execute SDK/_autoload.php which will register global instrumentation from environment configuration | ||
| require dirname(__DIR__) . '/vendor/autoload.php'; | ||
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| $instrumentation = new \OpenTelemetry\API\Common\Instrumentation\CachedInstrumentation('demo'); | ||
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| $instrumentation->tracer()->spanBuilder('root')->startSpan()->end(); |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,12 @@ | ||
| <?php | ||
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| declare(strict_types=1); | ||
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| namespace OpenTelemetry\Contrib\Otlp; | ||
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| interface ContentTypes | ||
| { | ||
| public const PROTOBUF = 'application/x-protobuf'; | ||
| public const JSON = 'application/json'; | ||
| public const NDJSON = 'application/x-ndjson'; | ||
| } |
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,65 @@ | ||
| <?php | ||
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| declare(strict_types=1); | ||
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| namespace OpenTelemetry\Contrib\Otlp; | ||
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| use OpenTelemetry\API\Common\Signal\Signals; | ||
| use OpenTelemetry\Contrib\Grpc\GrpcTransportFactory; | ||
| use OpenTelemetry\SDK\Common\Configuration\Configuration; | ||
| use OpenTelemetry\SDK\Common\Configuration\KnownValues; | ||
| use OpenTelemetry\SDK\Common\Configuration\Variables; | ||
| use OpenTelemetry\SDK\Common\Export\Http\PsrTransportFactory; | ||
| use OpenTelemetry\SDK\Common\Export\TransportInterface; | ||
| use OpenTelemetry\SDK\Metrics\MetricExporterInterface; | ||
| use UnexpectedValueException; | ||
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| class MetricExporterFactory | ||
| { | ||
| /** | ||
| * @psalm-suppress ArgumentTypeCoercion | ||
| */ | ||
| public function create(): MetricExporterInterface | ||
| { | ||
| $protocol = Configuration::has(Variables::OTEL_EXPORTER_OTLP_METRICS_PROTOCOL) | ||
| ? Configuration::getEnum(Variables::OTEL_EXPORTER_OTLP_METRICS_PROTOCOL) | ||
| : Configuration::getEnum(Variables::OTEL_EXPORTER_OTLP_PROTOCOL); | ||
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| return new MetricExporter($this->buildTransport($protocol)); | ||
| } | ||
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| private function buildTransport(string $protocol): TransportInterface | ||
| { | ||
| /** | ||
| * @todo (https://github.com/open-telemetry/opentelemetry-specification/blob/main/specification/metrics/sdk.md#periodic-exporting-metricreader) | ||
| * - OTEL_METRIC_EXPORT_INTERVAL | ||
| * - OTEL_METRIC_EXPORT_TIMEOUT | ||
| */ | ||
| $endpoint = Configuration::has(Variables::OTEL_EXPORTER_OTLP_METRICS_ENDPOINT) | ||
| ? Configuration::getString(Variables::OTEL_EXPORTER_OTLP_METRICS_ENDPOINT) | ||
| : Configuration::getString(Variables::OTEL_EXPORTER_OTLP_ENDPOINT); | ||
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| $headers = Configuration::has(Variables::OTEL_EXPORTER_OTLP_METRICS_HEADERS) | ||
| ? Configuration::getMap(Variables::OTEL_EXPORTER_OTLP_METRICS_HEADERS) | ||
| : Configuration::getMap(Variables::OTEL_EXPORTER_OTLP_HEADERS); | ||
| $headers += OtlpUtil::getUserAgentHeader(); | ||
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| switch ($protocol) { | ||
| case KnownValues::VALUE_GRPC: | ||
| return (new GrpcTransportFactory())->create( | ||
| $endpoint . OtlpUtil::method(Signals::METRICS), | ||
| ContentTypes::PROTOBUF, | ||
| $headers, | ||
| ); | ||
| case KnownValues::VALUE_HTTP_PROTOBUF: | ||
| case KnownValues::VALUE_HTTP_JSON: | ||
| return PsrTransportFactory::discover()->create( | ||
| $endpoint, | ||
| Protocols::contentType($protocol), | ||
| $headers, | ||
| ); | ||
| default: | ||
| throw new UnexpectedValueException('Unknown otlp protocol: ' . $protocol); | ||
| } | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,71 @@ | ||
| <?php | ||
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| declare(strict_types=1); | ||
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| namespace OpenTelemetry\SDK\Metrics; | ||
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| use OpenTelemetry\SDK\Behavior\LogsMessagesTrait; | ||
| use OpenTelemetry\SDK\Common\Configuration\Configuration; | ||
| use OpenTelemetry\SDK\Common\Configuration\KnownValues; | ||
| use OpenTelemetry\SDK\Common\Configuration\Variables; | ||
| use OpenTelemetry\SDK\Common\Time\ClockFactory; | ||
| use OpenTelemetry\SDK\Metrics\Exemplar\ExemplarFilter\AllExemplarFilter; | ||
| use OpenTelemetry\SDK\Metrics\Exemplar\ExemplarFilter\NoneExemplarFilter; | ||
| use OpenTelemetry\SDK\Metrics\Exemplar\ExemplarFilter\WithSampledTraceExemplarFilter; | ||
| use OpenTelemetry\SDK\Metrics\Exemplar\ExemplarFilterInterface; | ||
| use OpenTelemetry\SDK\Metrics\MetricExporter\NoopMetricExporter; | ||
| use OpenTelemetry\SDK\Metrics\MetricReader\ExportingReader; | ||
| use OpenTelemetry\SDK\Resource\ResourceInfoFactory; | ||
| use OpenTelemetry\SDK\Sdk; | ||
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| class MeterProviderFactory | ||
| { | ||
| use LogsMessagesTrait; | ||
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| private const KNOWN_EXPORTER_FACTORIES = [ | ||
| KnownValues::VALUE_OTLP => '\OpenTelemetry\Contrib\Otlp\MetricExporterFactory', | ||
| ]; | ||
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| public function create(): MeterProviderInterface | ||
| { | ||
| if (Sdk::isDisabled()) { | ||
| return new NoopMeterProvider(); | ||
| } | ||
| $exporterName = Configuration::getString(Variables::OTEL_METRICS_EXPORTER); | ||
| if ($exporterName === KnownValues::VALUE_NONE) { | ||
| $exporter = new NoopMetricExporter(); | ||
| } elseif (!array_key_exists($exporterName, self::KNOWN_EXPORTER_FACTORIES)) { | ||
| self::logError('Factory cannot create exporter: ' . $exporterName); | ||
| $exporter = new NoopMetricExporter(); | ||
| } else { | ||
| $factoryClass = self::KNOWN_EXPORTER_FACTORIES[$exporterName]; | ||
| $factory = new $factoryClass(); | ||
| $exporter = $factory->create(); | ||
| } | ||
| $reader = new ExportingReader($exporter, ClockFactory::getDefault()); | ||
| $resource = ResourceInfoFactory::defaultResource(); | ||
| $exemplarFilter = $this->createExemplarFilter(Configuration::getEnum(Variables::OTEL_METRICS_EXEMPLAR_FILTER)); | ||
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| return MeterProvider::builder() | ||
| ->setResource($resource) | ||
| ->addReader($reader) | ||
| ->setExemplarFilter($exemplarFilter) | ||
| ->build(); | ||
| } | ||
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| private function createExemplarFilter(string $name): ExemplarFilterInterface | ||
| { | ||
| switch ($name) { | ||
| case KnownValues::VALUE_WITH_SAMPLED_TRACE: | ||
| return new WithSampledTraceExemplarFilter(); | ||
| case KnownValues::VALUE_ALL: | ||
| return new AllExemplarFilter(); | ||
| case KnownValues::VALUE_NONE: | ||
| return new NoneExemplarFilter(); | ||
| default: | ||
| self::logWarning('Unknown exemplar filter: ' . $name); | ||
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| return new NoneExemplarFilter(); | ||
| } | ||
| } | ||
| } |
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