63 lines
1.5 KiB
Go
63 lines
1.5 KiB
Go
package tracing
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import (
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"context"
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"fmt"
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"net/http"
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"go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp"
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"go.opentelemetry.io/otel/attribute"
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"go.opentelemetry.io/otel/exporters/otlp/otlptrace"
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"go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc"
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"go.opentelemetry.io/otel/sdk/resource"
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"go.opentelemetry.io/otel/sdk/trace"
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semconv "go.opentelemetry.io/otel/semconv/v1.25.0"
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"git.ifooth.com/common/pkg/config"
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"git.ifooth.com/common/pkg/version"
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)
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// TracingHandler
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func TracingHandler(operation string) func(next http.Handler) http.Handler {
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return func(next http.Handler) http.Handler {
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fn := func(w http.ResponseWriter, r *http.Request) {
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next.ServeHTTP(w, r)
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}
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return otelhttp.NewHandler(http.HandlerFunc(fn), operation)
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}
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}
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// newResource
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func NewResource(serviceName, runEnv string) (*resource.Resource, error) {
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r, err := resource.Merge(
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resource.Default(),
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resource.NewWithAttributes(
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semconv.SchemaURL,
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semconv.ServiceName(serviceName),
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semconv.ServiceVersion(version.Version),
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attribute.String("run_env", runEnv),
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),
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)
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if err != nil {
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return nil, fmt.Errorf("creating trace resource: %w", err)
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}
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return r, nil
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}
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// newExporter
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func NewExporter(ctx context.Context, conf *config.Tracing) (trace.SpanExporter, error) {
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client := otlptracegrpc.NewClient(
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otlptracegrpc.WithEndpoint(conf.Endpoint),
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otlptracegrpc.WithInsecure(),
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)
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exporter, err := otlptrace.New(ctx, client)
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if err != nil {
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return nil, fmt.Errorf("creating OTLP trace exporter: %w", err)
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}
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return exporter, nil
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}
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