feat: initial version

.editorconfig

@@ -0,0 +1,11 @@
+root = true
+
+[*]
+end_of_line = lf
+insert_final_newline = true
+charset = utf-8
+trim_trailing_whitespace = true
+
+[*.go]
+indent_style = tab
+indent_size = 2

.gitignore

@@ -0,0 +1,2 @@
+.idea
+/release

.gitlab-ci.yml

@@ -0,0 +1,38 @@
+include:
+- template: 'Workflows/MergeRequest-Pipelines.gitlab-ci.yml'
+- project: unboundsoftware/ci-templates
+  file: Defaults.gitlab-ci.yml
+- project: unboundsoftware/ci-templates
+  file: Release.gitlab-ci.yml
+- project: unboundsoftware/ci-templates
+  file: Pre-Commit-Go.gitlab-ci.yml
+
+image: amd64/golang:1.24.3@sha256:f255a7d417e3733c9514bf8dd9c708b15b0ccd2543a850bed1d1198f42e476e2
+
+stages:
+- deps
+- test
+
+deps:
+  stage: deps
+  script:
+  - go mod download
+
+test:
+  stage: test
+  dependencies:
+  - deps
+  script:
+  - CGO_ENABLED=1 go test -mod=readonly -race -coverprofile=coverage.txt -covermode=atomic -coverpkg=$(go list ./... | tr '\n' , | sed 's/,$//') ./...
+  - go tool cover -html=coverage.txt -o coverage.html
+  - go tool cover -func=coverage.txt
+  - curl -Os https://uploader.codecov.io/latest/linux/codecov
+  - chmod +x codecov
+  - ./codecov -t ${CODECOV_TOKEN} -R $CI_PROJECT_DIR -C $CI_COMMIT_SHA -r $CI_PROJECT_PATH
+
+vulnerabilities:
+  stage: test
+  image: amd64/golang:1.24.3@sha256:f255a7d417e3733c9514bf8dd9c708b15b0ccd2543a850bed1d1198f42e476e2
+  script:
+  - go install golang.org/x/vuln/cmd/govulncheck@latest
+  - govulncheck ./...

.golangci.yml

@@ -0,0 +1,22 @@
+version: "2"
+run:
+  allow-parallel-runners: true
+linters:
+  exclusions:
+    generated: lax
+    presets:
+      - comments
+      - common-false-positives
+      - legacy
+      - std-error-handling
+    paths:
+      - third_party$
+      - builtin$
+      - examples$
+formatters:
+  exclusions:
+    generated: lax
+    paths:
+      - third_party$
+      - builtin$
+      - examples$

.pre-commit-config.yaml

@@ -0,0 +1,46 @@
+# See https://pre-commit.com for more information
+# See https://pre-commit.com/hooks.html for more hooks
+repos:
+- repo: https://github.com/pre-commit/pre-commit-hooks
+  rev: v5.0.0
+  hooks:
+  - id: trailing-whitespace
+  - id: end-of-file-fixer
+  - id: check-yaml
+    args:
+    - --allow-multiple-documents
+  - id: check-added-large-files
+- repo: https://gitlab.com/devopshq/gitlab-ci-linter
+  rev: v1.0.6
+  hooks:
+  - id: gitlab-ci-linter
+    args:
+    - --project
+    - unboundsoftware/shiny/sentrysetup
+- repo: https://github.com/alessandrojcm/commitlint-pre-commit-hook
+  rev: v9.22.0
+  hooks:
+  - id: commitlint
+    stages: [ commit-msg ]
+    additional_dependencies: [ '@commitlint/config-conventional' ]
+- repo: https://github.com/dnephin/pre-commit-golang
+  rev: v0.5.1
+  hooks:
+  - id: go-mod-tidy
+  - id: go-imports
+    args:
+    - -local
+    - gitlab.com/unboundsoftware/shiny/sentrysetup
+- repo: https://github.com/lietu/go-pre-commit
+  rev: v0.1.0
+  hooks:
+  - id: go-test
+  - id: gofumpt
+- repo: https://github.com/golangci/golangci-lint
+  rev: v2.1.6
+  hooks:
+  - id: golangci-lint-full
+- repo: https://github.com/gitleaks/gitleaks
+  rev: v8.26.0
+  hooks:
+  - id: gitleaks

README.md

@@ -0,0 +1,4 @@
+# Shiny otelsetup
+
+[![Build Status](https://gitlab.com/unboundsoftware/shiny/otelsetup/badges/main/pipeline.svg)](https://gitlab.com/unboundsoftware/shiny/otelsetup/commits/main)
+[![codecov](https://codecov.io/gl/unboundsoftware:shiny/otelsetup/branch/main/graph/badge.svg?token=I3FNYTXUPU)](https://codecov.io/gl/unboundsoftware:shiny/otelsetup)

go.mod

@@ -0,0 +1,37 @@
+module gitlab.com/unboundsoftware/shiny/otelsetup
+
+go 1.24.3
+
+require (
+	github.com/99designs/gqlgen v0.17.73
+	go.opentelemetry.io/otel v1.36.0
+	go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetrichttp v1.36.0
+	go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp v1.36.0
+	go.opentelemetry.io/otel/exporters/stdout/stdoutlog v0.12.2
+	go.opentelemetry.io/otel/log v0.12.2
+	go.opentelemetry.io/otel/sdk v1.36.0
+	go.opentelemetry.io/otel/sdk/log v0.12.2
+	go.opentelemetry.io/otel/sdk/metric v1.36.0
+	go.opentelemetry.io/otel/trace v1.36.0
+)
+
+require (
+	github.com/cenkalti/backoff/v5 v5.0.2 // indirect
+	github.com/go-logr/logr v1.4.2 // indirect
+	github.com/go-logr/stdr v1.2.2 // indirect
+	github.com/google/uuid v1.6.0 // indirect
+	github.com/grpc-ecosystem/grpc-gateway/v2 v2.26.3 // indirect
+	github.com/sosodev/duration v1.3.1 // indirect
+	github.com/vektah/gqlparser/v2 v2.5.26 // indirect
+	go.opentelemetry.io/auto/sdk v1.1.0 // indirect
+	go.opentelemetry.io/otel/exporters/otlp/otlptrace v1.36.0 // indirect
+	go.opentelemetry.io/otel/metric v1.36.0 // indirect
+	go.opentelemetry.io/proto/otlp v1.6.0 // indirect
+	golang.org/x/net v0.40.0 // indirect
+	golang.org/x/sys v0.33.0 // indirect
+	golang.org/x/text v0.25.0 // indirect
+	google.golang.org/genproto/googleapis/api v0.0.0-20250519155744-55703ea1f237 // indirect
+	google.golang.org/genproto/googleapis/rpc v0.0.0-20250519155744-55703ea1f237 // indirect
+	google.golang.org/grpc v1.72.1 // indirect
+	google.golang.org/protobuf v1.36.6 // indirect
+)

go.sum

@@ -0,0 +1,77 @@
+github.com/99designs/gqlgen v0.17.73 h1:A3Ki+rHWqKbAOlg5fxiZBnz6OjW3nwupDHEG15gEsrg=
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+github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
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+gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
+gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

graphql.go

@@ -0,0 +1,41 @@
+package otelsetup
+
+import (
+	"context"
+	"fmt"
+
+	"github.com/99designs/gqlgen/graphql"
+	"go.opentelemetry.io/otel/trace"
+)
+
+func AroundOperations(ctx context.Context, next graphql.OperationHandler) graphql.ResponseHandler {
+	op := graphql.GetOperationContext(ctx)
+	spanName := fmt.Sprintf("graphql:operation:%s", op.OperationName)
+	// Span always injected in the http handler above
+	sp := trace.SpanFromContext(ctx)
+	if sp != nil {
+		sp.SetName(spanName)
+	}
+	return next(ctx)
+}
+
+func AroundRootFields(ctx context.Context, next graphql.RootResolver) graphql.Marshaler {
+	oc := graphql.GetRootFieldContext(ctx)
+	spanCtx, span := StartSpan(ctx, fmt.Sprintf("graphql:rootfield:%s", oc.Field.Name))
+	defer span.Finish()
+	return next(spanCtx)
+}
+
+func AroundFields(ctx context.Context, next graphql.Resolver) (res any, err error) {
+	oc := graphql.GetFieldContext(ctx)
+	var span Span
+	if oc.IsResolver {
+		ctx, span = StartSpan(ctx, fmt.Sprintf("graphql:field:%s", oc.Field.Name))
+	}
+	defer func() {
+		if span != nil {
+			span.Finish()
+		}
+	}()
+	return next(ctx)
+}

otel.go

@@ -0,0 +1,100 @@
+package otelsetup
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"net/http"
+	"os"
+	"time"
+
+	"go.opentelemetry.io/otel"
+	"go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetrichttp"
+	"go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp"
+	"go.opentelemetry.io/otel/exporters/stdout/stdoutlog"
+	"go.opentelemetry.io/otel/log/global"
+	"go.opentelemetry.io/otel/propagation"
+	"go.opentelemetry.io/otel/sdk/log"
+	"go.opentelemetry.io/otel/sdk/metric"
+	"go.opentelemetry.io/otel/sdk/trace"
+)
+
+// SetupOTelSDK bootstraps the OpenTelemetry pipeline.
+func SetupOTelSDK(ctx context.Context, enabled bool, serviceName string, buildVersion string) (func(context.Context) error, error) {
+	if os.Getenv("OTEL_RESOURCE_ATTRIBUTES") == "" {
+		if err := os.Setenv("OTEL_RESOURCE_ATTRIBUTES", fmt.Sprintf("service.name=%s,service.version=%s", serviceName, buildVersion)); err != nil {
+			return func(context.Context) error {
+				return nil
+			}, err
+		}
+	}
+	var shutdownFuncs []func(context.Context) error
+	if !enabled {
+		return func(context.Context) error {
+			return nil
+		}, nil
+	}
+	shutdown := func(ctx context.Context) error {
+		var err error
+		for _, fn := range shutdownFuncs {
+			err = errors.Join(err, fn(ctx))
+		}
+		shutdownFuncs = nil
+		return err
+	}
+
+	// handleErr calls shutdown for cleanup and makes sure that all errors are returned.
+	handleErr := func(inErr error) (func(context.Context) error, error) {
+		return nil, errors.Join(inErr, shutdown(ctx))
+	}
+
+	// Set up the propagator.
+	prop := propagation.NewCompositeTextMapPropagator(
+		propagation.TraceContext{},
+		propagation.Baggage{},
+	)
+	otel.SetTextMapPropagator(prop)
+
+	traceExporter, err := otlptracehttp.New(ctx)
+	if err != nil {
+		return handleErr(err)
+	}
+	shutdownFuncs = append(shutdownFuncs, traceExporter.Shutdown)
+
+	tracerProvider := trace.NewTracerProvider(
+		trace.WithBatcher(traceExporter,
+			trace.WithBatchTimeout(5*time.Second)),
+	)
+	shutdownFuncs = append(shutdownFuncs, tracerProvider.Shutdown)
+	otel.SetTracerProvider(tracerProvider)
+
+	logExporter, err := stdoutlog.New()
+	if err != nil {
+		return handleErr(err)
+	}
+	processor := log.NewSimpleProcessor(logExporter)
+	logProvider := log.NewLoggerProvider(log.WithProcessor(processor))
+
+	global.SetLoggerProvider(logProvider)
+	shutdownFuncs = append(shutdownFuncs, logProvider.Shutdown)
+
+	exp, err := otlpmetrichttp.New(ctx)
+	if err != nil {
+		return handleErr(err)
+	}
+	meterProvider := metric.NewMeterProvider(metric.WithReader(metric.NewPeriodicReader(exp)))
+	shutdownFuncs = append(shutdownFuncs, meterProvider.Shutdown)
+
+	otel.SetMeterProvider(meterProvider)
+	return shutdown, err
+}
+
+func Handler(h http.Handler) http.Handler {
+	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		ctx := otel.GetTextMapPropagator().Extract(r.Context(), propagation.HeaderCarrier(r.Header))
+		spanCtx, s := StartSpan(ctx, "http")
+		defer s.Finish()
+
+		h.ServeHTTP(w, r.WithContext(spanCtx))
+	})
+}

renovate.json

@@ -0,0 +1,6 @@
+{
+  "$schema": "https://docs.renovatebot.com/renovate-schema.json",
+  "extends": [
+    "config:recommended"
+  ]
+}

span.go

@@ -0,0 +1,46 @@
+package otelsetup
+
+import (
+	"context"
+
+	"go.opentelemetry.io/otel"
+	"go.opentelemetry.io/otel/trace"
+)
+
+type Span interface {
+	Context() context.Context
+	Finish()
+}
+
+type span struct {
+	otelSpan trace.Span
+	ctx      context.Context
+}
+
+func (s *span) Finish() {
+	s.otelSpan.End()
+}
+
+func (s *span) Context() context.Context {
+	return s.ctx
+}
+
+func StartSpan(ctx context.Context, name string, opts ...trace.SpanStartOption) (context.Context, Span) {
+	ctx, otelSpan := otel.Tracer("").Start(ctx, name, opts...)
+
+	return ctx, &span{
+		otelSpan: otelSpan,
+		ctx:      ctx,
+	}
+}
+
+type TraceHandlerFunc func(ctx context.Context, name string) (context.Context, func())
+
+func (t TraceHandlerFunc) Trace(tx context.Context, name string) (context.Context, func()) {
+	return t(tx, name)
+}
+
+func Trace(ctx context.Context, name string) (context.Context, func()) {
+	ctx, s := StartSpan(ctx, name)
+	return ctx, s.Finish
+}