Files
Alex ShtinandGitHub 8e8f1b0f7c Remove license header from every file (#7689)
## What changed?
<!-- Describe what has changed in this PR -->
Remove license header from every file. Because it is really hard to
follow in this PR here is the summary:
1. License header is removed from all `.go` and `.proto` files
:fireworks::fireworks:🎆.
2. `LICENSE` file in the root directory has only Temporal and Uber
copyrights.
3. 5 other `LICENSE` files added to the packages which have copyrights
different from Temporal and Uber: Datadog, Xargin, "Mat Ryer, Tyler
Bunnell and contributors".
4. `license_file` flag is removed from all code generation tools.
5. `copyright_file` flag is removed from `go:generate mockgen`
directive.
6. All copyright related targets are removed from `Makefile`.
7. Updated Temporal copyright year to 2025 everywhere.

## Why?
<!-- Tell your future self why have you made these changes -->
I double checked with legal department that it is not needed to have
license header in every file. One file per repo is enough. I put all
copyrights to the root `LICENSE` file and removed header from all other
files. Also updated tools and `Makefile`.
2025-05-01 18:50:21 -07:00

80 lines
2.5 KiB
Go

package telemetry
import (
"errors"
"fmt"
"strings"
"go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc"
otelsdktrace "go.opentelemetry.io/otel/sdk/trace"
"go.temporal.io/server/common/primitives"
)
var (
unsupportedTraceExporter = errors.New("unsupported OTEL exporter")
unsupportedTraceExporterProtocol = errors.New("unsupported OTEL exporter protocol")
)
const (
OtelServiceNameEnvKey = "OTEL_SERVICE_NAME"
OtelTracesExporterTypesEnvKey = "OTEL_TRACES_EXPORTER"
OtelTracesOtlpExporterType = SpanExporterType("otlp")
OtelExporterOtlpTracesProtocolEnvKey = "OTEL_EXPORTER_OTLP_TRACES_PROTOCOL"
OtelExporterOtlpTracesGrcpProtocol = "grpc"
)
type envVarLookup = func(string) (string, bool)
// SpanExportersFromEnv creates OTEL span exporters from environment variables.
func SpanExportersFromEnv(
envVars envVarLookup,
) (map[SpanExporterType]otelsdktrace.SpanExporter, error) {
exporters := map[SpanExporterType]otelsdktrace.SpanExporter{}
exporterTypes, ok := envVars(OtelTracesExporterTypesEnvKey)
if !ok {
return exporters, nil
}
for _, exporterType := range strings.Split(exporterTypes, ",") {
switch SpanExporterType(exporterType) {
case OtelTracesOtlpExporterType:
// only grpc is supported; fail if user requests a different protocol
if protocol, exists := envVars(OtelExporterOtlpTracesProtocolEnvKey); exists {
isSupported := protocol == OtelExporterOtlpTracesGrcpProtocol
if !isSupported {
return nil, fmt.Errorf("%w: %v=%v", unsupportedTraceExporterProtocol, OtelExporterOtlpTracesProtocolEnvKey, protocol)
}
}
// other OTEL configuration env variables are picked up automatically by the exporter itself
exporters[OtelTracesOtlpExporterType] = otlptracegrpc.NewUnstarted()
case "none":
// ignored
default:
return nil, fmt.Errorf("%w: %v=%v", unsupportedTraceExporter, OtelTracesExporterTypesEnvKey, exporterType)
}
}
return exporters, nil
}
// ResourceServiceName returns the OpenTelemetry tracing service name for a Temporal service.
func ResourceServiceName(
rsn primitives.ServiceName,
envVars envVarLookup,
) string {
// map "internal-frontend" to "frontend" for the purpose of tracing
if rsn == primitives.InternalFrontendService {
rsn = primitives.FrontendService
}
// allow custom prefix via env vars
serviceNamePrefix := "io.temporal"
if customServicePrefix, found := envVars(OtelServiceNameEnvKey); found {
serviceNamePrefix = customServicePrefix
}
return fmt.Sprintf("%s.%s", serviceNamePrefix, string(rsn))
}