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feat(tracing): use OTel API backed by dd-trace-go transport #298

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45dcbf1
feat(tracing): use OTel API backed by dd-trace-go transport
worstell May 7, 2026
b79dc26
feat(tracing): export OTel spans via OTLP gRPC instead of dd-trace-go…
worstell May 8, 2026
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7 changes: 7 additions & 0 deletions cmd/cachewd/main.go
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Original file line number Diff line number Diff line change
Expand Up @@ -34,6 +34,7 @@ import (
"github.com/block/cachew/internal/strategy"
"github.com/block/cachew/internal/strategy/git"
"github.com/block/cachew/internal/strategy/gomod"
"github.com/block/cachew/internal/tracing"
)

type GlobalConfig struct {
Expand Down Expand Up @@ -81,6 +82,12 @@ func main() {
fatalIfError(ctx, logger, err, "Failed to start Datadog profiler")
defer stopProfiler()

// Register the OpenTelemetry tracer provider. Gated on the same flag
// as the profiler so the full DD telemetry stack toggles together.
stopTracing, err := tracing.New(ctx, tracing.Config{Enabled: cli.DDProfilingEnabled})
fatalIfError(ctx, logger, err, "Failed to start tracer")
defer stopTracing()

reaper.Start(ctx)

// Start initialising
Expand Down
54 changes: 3 additions & 51 deletions go.mod
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Original file line number Diff line number Diff line change
Expand Up @@ -16,62 +16,42 @@ require (
go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.68.0
go.opentelemetry.io/otel v1.43.0
go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetrichttp v1.43.0
go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc v1.40.0
go.opentelemetry.io/otel/exporters/prometheus v0.65.0
go.opentelemetry.io/otel/metric v1.43.0
go.opentelemetry.io/otel/sdk v1.43.0
go.opentelemetry.io/otel/sdk/metric v1.43.0
go.opentelemetry.io/otel/trace v1.43.0
golang.org/x/mod v0.35.0
golang.org/x/sync v0.20.0
gopkg.in/DataDog/dd-trace-go.v1 v1.74.8
)

require (
github.com/DataDog/datadog-agent/comp/core/tagger/origindetection v0.67.0 // indirect
github.com/DataDog/datadog-agent/pkg/obfuscate v0.67.0 // indirect
github.com/DataDog/datadog-agent/pkg/proto v0.67.0 // indirect
github.com/DataDog/datadog-agent/pkg/remoteconfig/state v0.69.0 // indirect
github.com/DataDog/datadog-agent/pkg/trace v0.67.0 // indirect
github.com/DataDog/datadog-agent/pkg/util/log v0.67.0 // indirect
github.com/DataDog/datadog-agent/pkg/util/scrubber v0.67.0 // indirect
github.com/DataDog/datadog-agent/pkg/version v0.67.0 // indirect
github.com/DataDog/datadog-go/v5 v5.6.0 // indirect
github.com/DataDog/dd-trace-go/v2 v2.3.0 // indirect
github.com/DataDog/go-libddwaf/v4 v4.3.2 // indirect
github.com/DataDog/go-runtime-metrics-internal v0.0.4-0.20250721125240-fdf1ef85b633 // indirect
github.com/DataDog/go-sqllexer v0.1.6 // indirect
github.com/DataDog/go-tuf v1.1.0-0.5.2 // indirect
github.com/DataDog/gostackparse v0.7.0 // indirect
github.com/DataDog/opentelemetry-mapping-go/pkg/otlp/attributes v0.27.0 // indirect
github.com/DataDog/sketches-go v1.4.7 // indirect
github.com/Masterminds/semver/v3 v3.3.1 // indirect
github.com/Microsoft/go-winio v0.6.2 // indirect
github.com/agnivade/levenshtein v1.2.1 // indirect
github.com/aofei/backoff v1.2.0 // indirect
github.com/beorn7/perks v1.0.1 // 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/decred/dcrd/dcrec/secp256k1/v4 v4.4.0 // indirect
github.com/dlclark/regexp2 v1.11.5 // indirect
github.com/dustin/go-humanize v1.0.1 // indirect
github.com/ebitengine/purego v0.8.3 // indirect
github.com/felixge/httpsnoop v1.0.4 // indirect
github.com/go-ini/ini v1.67.0 // indirect
github.com/go-logr/logr v1.4.3 // indirect
github.com/go-logr/stdr v1.2.2 // indirect
github.com/go-ole/go-ole v1.3.0 // indirect
github.com/go-viper/mapstructure/v2 v2.4.0 // indirect
github.com/gobwas/glob v0.2.3 // indirect
github.com/goccy/go-json v0.10.5 // indirect
github.com/gogo/protobuf v1.3.2 // indirect
github.com/golang/protobuf v1.5.4 // indirect
github.com/google/pprof v0.0.0-20250403155104-27863c87afa6 // indirect
github.com/google/uuid v1.6.0 // indirect
github.com/grpc-ecosystem/grpc-gateway/v2 v2.28.0 // indirect
github.com/hashicorp/go-version v1.7.0 // indirect
github.com/hexops/gotextdiff v1.0.3 // indirect
github.com/json-iterator/go v1.1.12 // indirect
github.com/klauspost/compress v1.18.2 // indirect
github.com/klauspost/cpuid/v2 v2.2.11 // indirect
github.com/klauspost/crc32 v1.3.0 // indirect
Expand All @@ -82,18 +62,10 @@ require (
github.com/lestrrat-go/httprc/v3 v3.0.2 // indirect
github.com/lestrrat-go/jwx/v3 v3.0.13 // indirect
github.com/lestrrat-go/option/v2 v2.0.0 // indirect
github.com/lufia/plan9stats v0.0.0-20250317134145-8bc96cf8fc35 // indirect
github.com/minio/crc64nvme v1.1.1 // indirect
github.com/minio/md5-simd v1.1.2 // 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/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822 // indirect
github.com/outcaste-io/ristretto v0.2.3 // 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/prometheus/client_model v0.6.2 // indirect
github.com/prometheus/common v0.67.5 // indirect
github.com/prometheus/otlptranslator v1.0.0 // indirect
Expand All @@ -102,50 +74,30 @@ require (
github.com/rcrowley/go-metrics v0.0.0-20250401214520-65e299d6c5c9 // indirect
github.com/richardartoul/molecule v1.0.1-0.20240531184615-7ca0df43c0b3 // indirect
github.com/rs/xid v1.6.0 // indirect
github.com/secure-systems-lab/go-securesystemslib v0.9.0 // indirect
github.com/segmentio/asm v1.2.1 // indirect
github.com/shirou/gopsutil/v4 v4.25.3 // indirect
github.com/sirupsen/logrus v1.9.4 // indirect
github.com/spaolacci/murmur3 v1.1.0 // indirect
github.com/stretchr/testify v1.11.1 // indirect
github.com/tchap/go-patricia/v2 v2.3.3 // indirect
github.com/theckman/httpforwarded v0.4.0 // indirect
github.com/tinylib/msgp v1.6.1 // indirect
github.com/tklauser/go-sysconf v0.3.15 // indirect
github.com/tklauser/numcpus v0.10.0 // indirect
github.com/valyala/fastjson v1.6.7 // indirect
github.com/vektah/gqlparser/v2 v2.5.32 // indirect
github.com/xeipuuv/gojsonpointer v0.0.0-20190905194746-02993c407bfb // indirect
github.com/xeipuuv/gojsonreference v0.0.0-20180127040603-bd5ef7bd5415 // indirect
github.com/yashtewari/glob-intersection v0.2.0 // indirect
github.com/yusufpapurcu/wmi v1.2.4 // indirect
go.opentelemetry.io/auto/sdk v1.2.1 // indirect
go.opentelemetry.io/collector/component v1.31.0 // indirect
go.opentelemetry.io/collector/featuregate v1.31.0 // indirect
go.opentelemetry.io/collector/internal/telemetry v0.125.0 // indirect
go.opentelemetry.io/collector/pdata v1.31.0 // indirect
go.opentelemetry.io/collector/semconv v0.125.0 // indirect
go.opentelemetry.io/contrib/bridges/otelzap v0.10.0 // indirect
go.opentelemetry.io/otel/log v0.11.0 // indirect
go.opentelemetry.io/otel/trace v1.43.0 // indirect
go.opentelemetry.io/otel/exporters/otlp/otlptrace v1.40.0 // indirect
go.opentelemetry.io/proto/otlp v1.10.0 // indirect
go.uber.org/atomic v1.11.0 // indirect
go.uber.org/multierr v1.11.0 // indirect
go.uber.org/zap v1.27.0 // indirect
go.yaml.in/yaml/v2 v2.4.4 // indirect
go.yaml.in/yaml/v3 v3.0.4 // indirect
golang.org/x/crypto v0.49.0 // indirect
golang.org/x/exp v0.0.0-20250606033433-dcc06ee1d476 // indirect
golang.org/x/net v0.52.0 // indirect
golang.org/x/sys v0.42.0 // indirect
golang.org/x/text v0.35.0 // indirect
golang.org/x/time v0.15.0 // indirect
golang.org/x/xerrors v0.0.0-20231012003039-104605ab7028 // indirect
google.golang.org/genproto/googleapis/api v0.0.0-20260401024825-9d38bb4040a9 // indirect
google.golang.org/genproto/googleapis/rpc v0.0.0-20260401024825-9d38bb4040a9 // indirect
google.golang.org/grpc v1.80.0 // indirect
google.golang.org/protobuf v1.36.11 // indirect
gopkg.in/ini.v1 v1.67.1 // indirect
gopkg.in/yaml.v3 v3.0.1 // indirect
sigs.k8s.io/yaml v1.6.0 // indirect
)
Expand Down
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