59 lines
1.4 KiB
Go
59 lines
1.4 KiB
Go
package tracer
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import (
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"context"
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"log/slog"
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"time"
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"github.com/spf13/viper"
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"go.opentelemetry.io/otel"
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"go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc"
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"go.opentelemetry.io/otel/propagation"
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"go.opentelemetry.io/otel/sdk/resource"
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sdktrace "go.opentelemetry.io/otel/sdk/trace"
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semconv "go.opentelemetry.io/otel/semconv/v1.24.0"
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)
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func Init(ctx context.Context) func(context.Context) error {
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endpoint := viper.GetString("tracer.otel_controller_endpoint")
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if endpoint == "" {
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endpoint = "localhost:4317"
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}
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clientCtx, cancel := context.WithTimeout(ctx, 5*time.Second)
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defer cancel()
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exporter, err := otlptracegrpc.New(clientCtx,
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otlptracegrpc.WithEndpoint(endpoint),
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otlptracegrpc.WithInsecure(),
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)
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if err != nil {
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slog.Error("[Tracer] Failed to create trace exporter", "err", err)
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return func(context.Context) error { return nil }
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}
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res, err := resource.New(ctx,
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resource.WithAttributes(
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semconv.ServiceNameKey.String("nixcn-cms-backend"),
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),
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)
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if err != nil {
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slog.Error("[Tracer] Failed to create resource", "err", err)
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}
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tp := sdktrace.NewTracerProvider(
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sdktrace.WithBatcher(exporter),
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sdktrace.WithResource(res),
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sdktrace.WithSampler(sdktrace.AlwaysSample()),
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)
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otel.SetTracerProvider(tp)
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otel.SetTextMapPropagator(propagation.NewCompositeTextMapPropagator(
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propagation.TraceContext{},
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propagation.Baggage{},
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))
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return tp.Shutdown
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}
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