feat(contrib): Add rs/zerolog ddtracer integration (#4370)

Co-authored-by: Dario Castañé <dario.castane@datadoghq.com>

Author: takanuva15

contrib/rs/zerolog/example_test.go

@@ -0,0 +1,37 @@
+// Unless explicitly stated otherwise all files in this repository are licensed
+// under the Apache License Version 2.0.
+// This product includes software developed at Datadog (https://www.datadoghq.com/).
+// Copyright 2022 Datadog, Inc.
+
+package zerolog_test
+
+import (
+	"context"
+	"os"
+	"time"
+
+	"github.com/rs/zerolog"
+
+	ddzerolog "github.com/DataDog/dd-trace-go/contrib/rs/zerolog/v2"
+
+	"github.com/DataDog/dd-trace-go/v2/ddtrace/tracer"
+)
+
+func ExampleHook() {
+	_ = tracer.Start()
+	defer tracer.Stop()
+	// Ensure your tracer is started and stopped
+	// Setup zerolog, do this once at the beginning of your program
+	zlog := zerolog.New(os.Stdout).
+		Hook(&ddzerolog.DDContextLogHook{})
+
+	span, sctx := tracer.StartSpanFromContext(context.Background(), "mySpan")
+	defer span.Finish()
+
+	// Pass the current span context to the logger (Time is set for consistency in output here)
+	cLog := zlog.Info().Ctx(sctx).Time("time", time.Date(2000, 1, 1, 1, 1, 1, 0, time.UTC))
+	// Log as desired using the context-aware logger
+	cLog.Msg("Completed some work!")
+	// You should see:
+	// {"dd.span_id":0,"dd.trace_id":0,"level":"info","msg":"Completed some work!","time":"2000-01-01T01:01:01Z"}
+}

contrib/rs/zerolog/go.mod

@@ -0,0 +1,86 @@
+module github.com/DataDog/dd-trace-go/contrib/rs/zerolog/v2
+
+go 1.25.0
+
+require (
+	github.com/DataDog/dd-trace-go/v2 v2.7.0-dev.1
+	github.com/rs/zerolog v1.34.0
+	github.com/stretchr/testify v1.11.1
+)
+
+require (
+	github.com/DataDog/datadog-agent/comp/core/tagger/origindetection v0.75.2 // indirect
+	github.com/DataDog/datadog-agent/pkg/obfuscate v0.75.2 // indirect
+	github.com/DataDog/datadog-agent/pkg/opentelemetry-mapping-go/otlp/attributes v0.75.2 // indirect
+	github.com/DataDog/datadog-agent/pkg/proto v0.75.2 // indirect
+	github.com/DataDog/datadog-agent/pkg/remoteconfig/state v0.75.2 // indirect
+	github.com/DataDog/datadog-agent/pkg/template v0.75.2 // indirect
+	github.com/DataDog/datadog-agent/pkg/trace v0.75.2 // indirect
+	github.com/DataDog/datadog-agent/pkg/util/log v0.75.2 // indirect
+	github.com/DataDog/datadog-agent/pkg/util/scrubber v0.75.2 // indirect
+	github.com/DataDog/datadog-agent/pkg/version v0.75.2 // indirect
+	github.com/DataDog/datadog-go/v5 v5.8.2 // indirect
+	github.com/DataDog/go-libddwaf/v4 v4.8.0 // indirect
+	github.com/DataDog/go-runtime-metrics-internal v0.0.4-0.20250721125240-fdf1ef85b633 // indirect
+	github.com/DataDog/go-sqllexer v0.1.10 // indirect
+	github.com/DataDog/go-tuf v1.1.1-0.5.2 // indirect
+	github.com/DataDog/sketches-go v1.4.7 // indirect
+	github.com/Microsoft/go-winio v0.6.2 // indirect
+	github.com/cenkalti/backoff/v5 v5.0.3 // indirect
+	github.com/cespare/xxhash/v2 v2.3.0 // indirect
+	github.com/cihub/seelog v0.0.0-20170130134532-f561c5e57575 // indirect
+	github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc // indirect
+	github.com/dustin/go-humanize v1.0.1 // indirect
+	github.com/ebitengine/purego v0.9.1 // indirect
+	github.com/go-ole/go-ole v1.3.0 // indirect
+	github.com/golang/protobuf v1.5.4 // indirect
+	github.com/google/uuid v1.6.0 // indirect
+	github.com/hashicorp/go-version v1.8.0 // indirect
+	github.com/json-iterator/go v1.1.12 // indirect
+	github.com/klauspost/compress v1.18.0 // indirect
+	github.com/klauspost/cpuid/v2 v2.2.3 // indirect
+	github.com/linkdata/deadlock v0.5.5 // indirect
+	github.com/lufia/plan9stats v0.0.0-20250317134145-8bc96cf8fc35 // indirect
+	github.com/mattn/go-colorable v0.1.13 // indirect
+	github.com/mattn/go-isatty v0.0.19 // indirect
+	github.com/minio/simdjson-go v0.4.5 // indirect
+	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
+	github.com/modern-go/reflect2 v1.0.3-0.20250322232337-35a7c28c31ee // indirect
+	github.com/outcaste-io/ristretto v0.2.3 // indirect
+	github.com/petermattis/goid v0.0.0-20250813065127-a731cc31b4fe // indirect
+	github.com/philhofer/fwd v1.2.0 // indirect
+	github.com/pkg/errors v0.9.1 // indirect
+	github.com/planetscale/vtprotobuf v0.6.1-0.20240319094008-0393e58bdf10 // indirect
+	github.com/pmezard/go-difflib v1.0.1-0.20181226105442-5d4384ee4fb2 // indirect
+	github.com/power-devops/perfstat v0.0.0-20240221224432-82ca36839d55 // indirect
+	github.com/puzpuzpuz/xsync/v3 v3.5.1 // indirect
+	github.com/secure-systems-lab/go-securesystemslib v0.9.0 // indirect
+	github.com/shirou/gopsutil/v4 v4.25.11 // indirect
+	github.com/tinylib/msgp v1.6.1 // indirect
+	github.com/tklauser/go-sysconf v0.3.16 // indirect
+	github.com/tklauser/numcpus v0.11.0 // indirect
+	github.com/trailofbits/go-mutexasserts v0.0.0-20250514102930-c1f3d2e37561 // indirect
+	github.com/yusufpapurcu/wmi v1.2.4 // indirect
+	go.opentelemetry.io/collector/component v1.48.0 // indirect
+	go.opentelemetry.io/collector/featuregate v1.48.0 // indirect
+	go.opentelemetry.io/collector/pdata v1.48.0 // indirect
+	go.opentelemetry.io/collector/pdata/pprofile v0.142.0 // indirect
+	go.opentelemetry.io/otel v1.39.0 // indirect
+	go.opentelemetry.io/otel/metric v1.39.0 // indirect
+	go.opentelemetry.io/otel/trace v1.39.0 // indirect
+	go.uber.org/atomic v1.11.0 // indirect
+	go.uber.org/multierr v1.11.0 // indirect
+	go.uber.org/zap v1.27.1 // indirect
+	go.yaml.in/yaml/v3 v3.0.4 // indirect
+	golang.org/x/exp v0.0.0-20251209150349-8475f28825e9 // indirect
+	golang.org/x/mod v0.31.0 // indirect
+	golang.org/x/sys v0.39.0 // indirect
+	golang.org/x/time v0.14.0 // indirect
+	golang.org/x/xerrors v0.0.0-20231012003039-104605ab7028 // indirect
+	google.golang.org/genproto/googleapis/rpc v0.0.0-20251202230838-ff82c1b0f217 // indirect
+	google.golang.org/protobuf v1.36.10 // indirect
+	gopkg.in/ini.v1 v1.67.0 // indirect
+	gopkg.in/yaml.v3 v3.0.1 // indirect
+)
+
+replace github.com/DataDog/dd-trace-go/v2 => ../../..