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otel.go
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otel.go
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package traces
import (
"context"
"github.com/replicatedhq/troubleshoot/pkg/version"
"go.opentelemetry.io/otel"
"go.opentelemetry.io/otel/attribute"
"go.opentelemetry.io/otel/sdk/resource"
"go.opentelemetry.io/otel/sdk/trace"
semconv "go.opentelemetry.io/otel/semconv/v1.12.0"
"k8s.io/klog/v2"
)
// ConfigureTracing configures the OpenTelemetry trace provider for CLI
// commands. Projects using troubleshoot as a library would need to register
// troubleshoot's exporter like so.
//
// var tp *trace.TracerProvider // client application's trace provider
// tp.RegisterSpanProcessor(
// trace.NewSimpleSpanProcessor(
// traces.GetExporterInstance(), // Troubleshoot's exporter
// ),
// )
//
// The client application is responsible for constructing the trace provider
// and registering the exporter. Multiple exporters can be registered.
func ConfigureTracing(processName string) (func(), error) {
r, err := resource.Merge(
resource.Default(),
resource.NewWithAttributes(
resource.Default().SchemaURL(),
semconv.ProcessCommandKey.String(processName),
semconv.ProcessRuntimeVersionKey.String(version.Version()),
attribute.String("environment", "cli"),
),
)
if err != nil {
return nil, err
}
// Trace provider for support bundle cli. Each application is required
// to have its own trace provider.
tp := trace.NewTracerProvider(
trace.WithSampler(trace.AlwaysSample()),
trace.WithSyncer(
GetExporterInstance(),
),
trace.WithResource(r),
)
otel.SetTracerProvider(tp)
return func() {
if err := tp.Shutdown(context.Background()); err != nil {
klog.Errorf("Failed to shutdown trace provider: %v", err)
}
}, nil
}