ekko: add gzip, move recover middleware to run early

(for pkg.go.dev)

LICENSE

@@ -0,0 +1,10 @@
+Copyright (c) 2012-2024 Develooper LLC
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without modification, are permitted (subject to the limitations in the disclaimer below) provided that the following conditions are met:
+
+* Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
+* Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
+* Neither the name of Develooper LLC nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.
+
+NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

ekko/ekko.go

@@ -0,0 +1,154 @@
+package ekko
+
+import (
+	"context"
+	"fmt"
+	"net"
+	"net/http"
+	"time"
+
+	"github.com/labstack/echo-contrib/echoprometheus"
+	"github.com/labstack/echo/v4"
+	"github.com/labstack/echo/v4/middleware"
+	slogecho "github.com/samber/slog-echo"
+	"go.ntppool.org/common/logger"
+	"go.ntppool.org/common/version"
+	"go.opentelemetry.io/contrib/instrumentation/github.com/labstack/echo/otelecho"
+	"go.opentelemetry.io/otel/attribute"
+	"go.opentelemetry.io/otel/trace"
+	"golang.org/x/sync/errgroup"
+)
+
+func New(name string, options ...func(*Ekko)) (*Ekko, error) {
+	ek := &Ekko{}
+	for _, o := range options {
+		o(ek)
+	}
+	return ek, nil
+}
+
+// Setup Echo; only intended for testing
+func (ek *Ekko) SetupEcho(ctx context.Context) (*echo.Echo, error) {
+	return ek.setup(ctx)
+}
+
+// Setup Echo and start the server. Will return if the http server
+// returns or the context is done.
+func (ek *Ekko) Start(ctx context.Context) error {
+	log := logger.Setup()
+
+	e, err := ek.setup(ctx)
+	if err != nil {
+		return err
+	}
+
+	g, ctx := errgroup.WithContext(ctx)
+	g.Go(func() error {
+		e.Server.Addr = fmt.Sprintf(":%d", ek.port)
+		log.Info("server starting", "port", ek.port)
+		err := e.Server.ListenAndServe()
+		if err == http.ErrServerClosed {
+			return nil
+		}
+		return err
+	})
+
+	g.Go(func() error {
+		<-ctx.Done()
+		shutdownCtx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
+		defer cancel()
+		return e.Shutdown(shutdownCtx)
+	})
+
+	return g.Wait()
+}
+
+func (ek *Ekko) setup(ctx context.Context) (*echo.Echo, error) {
+	log := logger.Setup()
+
+	e := echo.New()
+
+	// todo: make these an option?
+	e.Server.ReadTimeout = 30 * time.Second
+	e.Server.WriteTimeout = 60 * time.Second
+
+	e.Server.BaseContext = func(_ net.Listener) context.Context {
+		return ctx
+	}
+
+	trustOptions := []echo.TrustOption{
+		echo.TrustLoopback(true),
+		echo.TrustLinkLocal(false),
+		echo.TrustPrivateNet(true),
+	}
+	e.IPExtractor = echo.ExtractIPFromXFFHeader(trustOptions...)
+
+	if ek.otelmiddleware == nil {
+		e.Use(otelecho.Middleware(ek.name))
+	} else {
+		e.Use(ek.otelmiddleware)
+	}
+
+	e.Use(middleware.RecoverWithConfig(middleware.RecoverConfig{
+		LogErrorFunc: func(c echo.Context, err error, stack []byte) error {
+			log.ErrorContext(c.Request().Context(), err.Error(), "stack", string(stack))
+			fmt.Println(string(stack))
+			return err
+		},
+	}))
+
+	e.Use(slogecho.NewWithConfig(log,
+		slogecho.Config{
+			WithTraceID: false, // done by logger already
+		},
+	))
+
+	if ek.prom != nil {
+		e.Use(echoprometheus.NewMiddlewareWithConfig(echoprometheus.MiddlewareConfig{
+			Subsystem:  ek.name,
+			Registerer: ek.prom,
+		}))
+	}
+
+	e.Use(middleware.Gzip())
+
+	e.Use(middleware.Secure())
+
+	e.Use(
+		func(next echo.HandlerFunc) echo.HandlerFunc {
+			return func(c echo.Context) error {
+				request := c.Request()
+
+				span := trace.SpanFromContext(request.Context())
+				if span.IsRecording() {
+
+					span.SetAttributes(attribute.String("http.real_ip", c.RealIP()))
+					span.SetAttributes(attribute.String("url.path", c.Request().RequestURI))
+					if q := c.QueryString(); len(q) > 0 {
+						span.SetAttributes(attribute.String("url.query", q))
+					}
+					c.Response().Header().Set("Traceparent", span.SpanContext().TraceID().String())
+				}
+				return next(c)
+			}
+		},
+	)
+
+	e.Use(func(next echo.HandlerFunc) echo.HandlerFunc {
+		vinfo := version.VersionInfo()
+		v := ek.name + "/" + vinfo.Version + "+" + vinfo.GitRevShort
+		return func(c echo.Context) error {
+			c.Response().Header().Set(echo.HeaderServer, v)
+			return next(c)
+		}
+	})
+
+	if ek.routeFn != nil {
+		err := ek.routeFn(e)
+		if err != nil {
+			return nil, err
+		}
+	}
+
+	return e, nil
+}

ekko/options.go

@@ -0,0 +1,40 @@
+package ekko
+
+import (
+	"github.com/labstack/echo/v4"
+	"github.com/prometheus/client_golang/prometheus"
+)
+
+type Ekko struct {
+	name           string
+	prom           prometheus.Registerer
+	port           int
+	routeFn        func(e *echo.Echo) error
+	otelmiddleware echo.MiddlewareFunc
+}
+
+type RouteFn func(e *echo.Echo) error
+
+func WithPort(port int) func(*Ekko) {
+	return func(ek *Ekko) {
+		ek.port = port
+	}
+}
+
+func WithPrometheus(reg prometheus.Registerer) func(*Ekko) {
+	return func(ek *Ekko) {
+		ek.prom = reg
+	}
+}
+
+func WithEchoSetup(rfn RouteFn) func(*Ekko) {
+	return func(ek *Ekko) {
+		ek.routeFn = rfn
+	}
+}
+
+func WithOtelMiddleware(mw echo.MiddlewareFunc) func(*Ekko) {
+	return func(ek *Ekko) {
+		ek.otelmiddleware = mw
+	}
+}

go.mod

@@ -1,55 +1,75 @@
 module go.ntppool.org/common
 
-go 1.21.6
+go 1.22.2
 
 require (
 	github.com/abh/certman v0.4.0
-	github.com/labstack/echo/v4 v4.11.4
+	github.com/labstack/echo-contrib v0.17.1
+	github.com/labstack/echo/v4 v4.12.0
 	github.com/oklog/ulid/v2 v2.1.0
-	github.com/prometheus/client_golang v1.18.0
+	github.com/prometheus/client_golang v1.20.4
-	github.com/remychantenay/slog-otel v1.2.3
+	github.com/remychantenay/slog-otel v1.3.2
+	github.com/samber/slog-echo v1.14.7
 	github.com/segmentio/kafka-go v0.4.47
-	github.com/spf13/cobra v1.8.0
+	github.com/spf13/cobra v1.8.1
-	go.opentelemetry.io/otel v1.21.0
+	go.opentelemetry.io/contrib/exporters/autoexport v0.55.0
-	go.opentelemetry.io/otel/exporters/otlp/otlptrace v1.21.0
+	go.opentelemetry.io/contrib/instrumentation/github.com/labstack/echo/otelecho v0.55.0
-	go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp v1.21.0
+	go.opentelemetry.io/otel v1.30.0
-	go.opentelemetry.io/otel/sdk v1.21.0
+	go.opentelemetry.io/otel/exporters/otlp/otlptrace v1.30.0
-	go.opentelemetry.io/otel/trace v1.21.0
+	go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc v1.30.0
-	golang.org/x/mod v0.14.0
+	go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp v1.30.0
-	golang.org/x/sync v0.6.0
+	go.opentelemetry.io/otel/sdk v1.30.0
+	go.opentelemetry.io/otel/trace v1.30.0
+	golang.org/x/mod v0.21.0
+	golang.org/x/sync v0.8.0
+	google.golang.org/grpc v1.67.0
 )
 
 require (
 	github.com/beorn7/perks v1.0.1 // indirect
-	github.com/cenkalti/backoff/v4 v4.2.1 // indirect
+	github.com/cenkalti/backoff/v4 v4.3.0 // indirect
-	github.com/cespare/xxhash/v2 v2.2.0 // indirect
+	github.com/cespare/xxhash/v2 v2.3.0 // indirect
 	github.com/fsnotify/fsnotify v1.7.0 // indirect
-	github.com/go-logr/logr v1.4.1 // indirect
+	github.com/go-logr/logr v1.4.2 // indirect
 	github.com/go-logr/stdr v1.2.2 // indirect
-	github.com/golang/protobuf v1.5.3 // indirect
+	github.com/golang-jwt/jwt v3.2.2+incompatible // indirect
-	github.com/grpc-ecosystem/grpc-gateway/v2 v2.19.0 // indirect
+	github.com/google/uuid v1.6.0 // indirect
+	github.com/grpc-ecosystem/grpc-gateway/v2 v2.22.0 // indirect
 	github.com/inconshreveable/mousetrap v1.1.0 // indirect
-	github.com/klauspost/compress v1.17.4 // indirect
+	github.com/klauspost/compress v1.17.9 // indirect
 	github.com/labstack/gommon v0.4.2 // indirect
 	github.com/mattn/go-colorable v0.1.13 // indirect
 	github.com/mattn/go-isatty v0.0.20 // indirect
-	github.com/matttproud/golang_protobuf_extensions/v2 v2.0.0 // indirect
+	github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822 // indirect
 	github.com/pierrec/lz4/v4 v4.1.21 // indirect
 	github.com/pkg/errors v0.9.1 // indirect
-	github.com/prometheus/client_model v0.5.0 // indirect
+	github.com/prometheus/client_model v0.6.1 // indirect
-	github.com/prometheus/common v0.45.0 // indirect
+	github.com/prometheus/common v0.59.1 // indirect
-	github.com/prometheus/procfs v0.12.0 // indirect
+	github.com/prometheus/procfs v0.15.1 // indirect
+	github.com/samber/lo v1.47.0 // indirect
 	github.com/spf13/pflag v1.0.5 // indirect
 	github.com/valyala/bytebufferpool v1.0.0 // indirect
 	github.com/valyala/fasttemplate v1.2.2 // indirect
-	go.opentelemetry.io/otel/metric v1.21.0 // indirect
+	go.opentelemetry.io/contrib/bridges/prometheus v0.55.0 // indirect
-	go.opentelemetry.io/proto/otlp v1.0.0 // indirect
+	go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploggrpc v0.6.0 // indirect
-	golang.org/x/crypto v0.18.0 // indirect
+	go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploghttp v0.6.0 // indirect
-	golang.org/x/net v0.20.0 // indirect
+	go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetricgrpc v1.30.0 // indirect
-	golang.org/x/sys v0.16.0 // indirect
+	go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetrichttp v1.30.0 // indirect
-	golang.org/x/text v0.14.0 // indirect
+	go.opentelemetry.io/otel/exporters/prometheus v0.52.0 // indirect
-	google.golang.org/genproto/googleapis/api v0.0.0-20240108191215-35c7eff3a6b1 // indirect
+	go.opentelemetry.io/otel/exporters/stdout/stdoutlog v0.6.0 // indirect
-	google.golang.org/genproto/googleapis/rpc v0.0.0-20240108191215-35c7eff3a6b1 // indirect
+	go.opentelemetry.io/otel/exporters/stdout/stdoutmetric v1.30.0 // indirect
-	google.golang.org/grpc v1.60.1 // indirect
+	go.opentelemetry.io/otel/exporters/stdout/stdouttrace v1.30.0 // indirect
-	google.golang.org/protobuf v1.32.0 // indirect
+	go.opentelemetry.io/otel/log v0.6.0 // indirect
+	go.opentelemetry.io/otel/metric v1.30.0 // indirect
+	go.opentelemetry.io/otel/sdk/log v0.6.0 // indirect
+	go.opentelemetry.io/otel/sdk/metric v1.30.0 // indirect
+	go.opentelemetry.io/proto/otlp v1.3.1 // indirect
+	golang.org/x/crypto v0.27.0 // indirect
+	golang.org/x/net v0.29.0 // indirect
+	golang.org/x/sys v0.25.0 // indirect
+	golang.org/x/text v0.18.0 // indirect
+	golang.org/x/time v0.6.0 // indirect
+	google.golang.org/genproto/googleapis/api v0.0.0-20240903143218-8af14fe29dc1 // indirect
+	google.golang.org/genproto/googleapis/rpc v0.0.0-20240903143218-8af14fe29dc1 // indirect
+	google.golang.org/protobuf v1.34.2 // indirect
 )

go.sum

@@ -2,46 +2,40 @@ github.com/abh/certman v0.4.0 h1:XHoDtb0YyRQPclaHMrBDlKTVZpNjTK6vhB0S3Bd/Sbs=
 github.com/abh/certman v0.4.0/go.mod h1:x8QhpKVZifmV1Hdiwdg9gLo2GMPAxezz1s3zrVnPs+I=
 github.com/beorn7/perks v1.0.1 h1:VlbKKnNfV8bJzeqoa4cOKqO6bYr3WgKZxO8Z16+hsOM=
 github.com/beorn7/perks v1.0.1/go.mod h1:G2ZrVWU2WbWT9wwq4/hrbKbnv/1ERSJQ0ibhJ6rlkpw=
-github.com/cenkalti/backoff/v4 v4.2.1 h1:y4OZtCnogmCPw98Zjyt5a6+QwPLGkiQsYW5oUqylYbM=
+github.com/cenkalti/backoff/v4 v4.3.0 h1:MyRJ/UdXutAwSAT+s3wNd7MfTIcy71VQueUuFK343L8=
-github.com/cenkalti/backoff/v4 v4.2.1/go.mod h1:Y3VNntkOUPxTVeUxJ/G5vcM//AlwfmyYozVcomhLiZE=
+github.com/cenkalti/backoff/v4 v4.3.0/go.mod h1:Y3VNntkOUPxTVeUxJ/G5vcM//AlwfmyYozVcomhLiZE=
-github.com/cespare/xxhash/v2 v2.2.0 h1:DC2CZ1Ep5Y4k3ZQ899DldepgrayRUGE6BBZ/cd9Cj44=
+github.com/cespare/xxhash/v2 v2.3.0 h1:UL815xU9SqsFlibzuggzjXhog7bL6oX9BbNZnL2UFvs=
-github.com/cespare/xxhash/v2 v2.2.0/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
+github.com/cespare/xxhash/v2 v2.3.0/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
-github.com/cpuguy83/go-md2man/v2 v2.0.3/go.mod h1:tgQtvFlXSQOSOSIRvRPT7W67SCa46tRHOmNcaadrF8o=
+github.com/cpuguy83/go-md2man/v2 v2.0.4/go.mod h1:tgQtvFlXSQOSOSIRvRPT7W67SCa46tRHOmNcaadrF8o=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/fsnotify/fsnotify v1.7.0 h1:8JEhPFa5W2WU7YfeZzPNqzMP6Lwt7L2715Ggo0nosvA=
 github.com/fsnotify/fsnotify v1.7.0/go.mod h1:40Bi/Hjc2AVfZrqy+aj+yEI+/bRxZnMJyTJwOpGvigM=
 github.com/go-logr/logr v1.2.2/go.mod h1:jdQByPbusPIv2/zmleS9BjJVeZ6kBagPoEUsqbVz/1A=
-github.com/go-logr/logr v1.3.0 h1:2y3SDp0ZXuc6/cjLSZ+Q3ir+QB9T/iG5yYRXqsagWSY=
+github.com/go-logr/logr v1.4.2 h1:6pFjapn8bFcIbiKo3XT4j/BhANplGihG6tvd+8rYgrY=
-github.com/go-logr/logr v1.3.0/go.mod h1:9T104GzyrTigFIr8wt5mBrctHMim0Nb2HLGrmQ40KvY=
+github.com/go-logr/logr v1.4.2/go.mod h1:9T104GzyrTigFIr8wt5mBrctHMim0Nb2HLGrmQ40KvY=
-github.com/go-logr/logr v1.4.1 h1:pKouT5E8xu9zeFC39JXRDukb6JFQPXM5p5I91188VAQ=
-github.com/go-logr/logr v1.4.1/go.mod h1:9T104GzyrTigFIr8wt5mBrctHMim0Nb2HLGrmQ40KvY=
 github.com/go-logr/stdr v1.2.2 h1:hSWxHoqTgW2S2qGc0LTAI563KZ5YKYRhT3MFKZMbjag=
 github.com/go-logr/stdr v1.2.2/go.mod h1:mMo/vtBO5dYbehREoey6XUKy/eSumjCCveDpRre4VKE=
-github.com/golang/protobuf v1.5.0/go.mod h1:FsONVRAS9T7sI+LIUmWTfcYkHO4aIWwzhcaSAoJOfIk=
+github.com/golang-jwt/jwt v3.2.2+incompatible h1:IfV12K8xAKAnZqdXVzCZ+TOjboZ2keLg81eXfW3O+oY=
-github.com/golang/protobuf v1.5.3 h1:KhyjKVUg7Usr/dYsdSqoFveMYd5ko72D+zANwlG1mmg=
+github.com/golang-jwt/jwt v3.2.2+incompatible/go.mod h1:8pz2t5EyA70fFQQSrl6XZXzqecmYZeUEB8OUGHkxJ+I=
-github.com/golang/protobuf v1.5.3/go.mod h1:XVQd3VNwM+JqD3oG2Ue2ip4fOMUkwXdXDdiuN0vRsmY=
-github.com/google/go-cmp v0.5.5/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
 github.com/google/go-cmp v0.6.0 h1:ofyhxvXcZhMsU5ulbFiLKl/XBFqE1GSq7atu8tAmTRI=
 github.com/google/go-cmp v0.6.0/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
-github.com/grpc-ecosystem/grpc-gateway/v2 v2.18.1 h1:6UKoz5ujsI55KNpsJH3UwCq3T8kKbZwNZBNPuTTje8U=
+github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
-github.com/grpc-ecosystem/grpc-gateway/v2 v2.18.1/go.mod h1:YvJ2f6MplWDhfxiUC3KpyTy76kYUZA4W3pTv/wdKQ9Y=
+github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
-github.com/grpc-ecosystem/grpc-gateway/v2 v2.19.0 h1:Wqo399gCIufwto+VfwCSvsnfGpF/w5E9CNxSwbpD6No=
+github.com/grpc-ecosystem/grpc-gateway/v2 v2.22.0 h1:asbCHRVmodnJTuQ3qamDwqVOIjwqUPTYmYuemVOx+Ys=
-github.com/grpc-ecosystem/grpc-gateway/v2 v2.19.0/go.mod h1:qmOFXW2epJhM0qSnUUYpldc7gVz2KMQwJ/QYCDIa7XU=
+github.com/grpc-ecosystem/grpc-gateway/v2 v2.22.0/go.mod h1:ggCgvZ2r7uOoQjOyu2Y1NhHmEPPzzuhWgcza5M1Ji1I=
 github.com/inconshreveable/mousetrap v1.1.0 h1:wN+x4NVGpMsO7ErUn/mUI3vEoE6Jt13X2s0bqwp9tc8=
 github.com/inconshreveable/mousetrap v1.1.0/go.mod h1:vpF70FUmC8bwa3OWnCshd2FqLfsEA9PFc4w1p2J65bw=
 github.com/klauspost/compress v1.15.9/go.mod h1:PhcZ0MbTNciWF3rruxRgKxI5NkcHHrHUDtV4Yw2GlzU=
-github.com/klauspost/compress v1.17.3 h1:qkRjuerhUU1EmXLYGkSH6EZL+vPSxIrYjLNAK4slzwA=
+github.com/klauspost/compress v1.17.9 h1:6KIumPrER1LHsvBVuDa0r5xaG0Es51mhhB9BQB2qeMA=
-github.com/klauspost/compress v1.17.3/go.mod h1:/dCuZOvVtNoHsyb+cuJD3itjs3NbnF6KH9zAO4BDxPM=
+github.com/klauspost/compress v1.17.9/go.mod h1:Di0epgTjJY877eYKx5yC51cX2A2Vl2ibi7bDH9ttBbw=
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@@ -170,10 +173,8 @@ golang.org/x/sys v0.5.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
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@@ -186,38 +187,23 @@ golang.org/x/text v0.3.8/go.mod h1:E6s5w1FMmriuDzIBO73fBruAKo1PCIq6d2Q6DHfQ8WQ=
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-google.golang.org/grpc v1.60.1/go.mod h1:OlCHIeLYqSSsLi6i49B5QGdzaMZK9+M7LXN2FKz4eGM=
-google.golang.org/protobuf v1.26.0-rc.1/go.mod h1:jlhhOSvTdKEhbULTjvd4ARK9grFBp09yW+WbY/TyQbw=
-google.golang.org/protobuf v1.26.0/go.mod h1:9q0QmTI4eRPtz6boOQmLYwt+qCgq0jsYwAQnmE0givc=
-google.golang.org/protobuf v1.31.0 h1:g0LDEJHgrBl9N9r17Ru3sqWhkIx2NB67okBHPwC7hs8=
-google.golang.org/protobuf v1.31.0/go.mod h1:HV8QOd/L58Z+nl8r43ehVNZIU/HEI6OcFqwMG9pJV4I=
-google.golang.org/protobuf v1.32.0 h1:pPC6BG5ex8PDFnkbrGU3EixyhKcQ2aDuBS36lqK/C7I=
-google.golang.org/protobuf v1.32.0/go.mod h1:c6P6GXX6sHbq/GpV6MGZEdwhWPcYBgnhAHhKbcUYpos=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=

health/health_server.go

@@ -32,7 +32,7 @@ func (srv *Server) SetLogger(log *slog.Logger) {
 }
 
 func (srv *Server) Listen(ctx context.Context, port int) error {
-	srv.log.Info("Starting health listener", "port", port)
+	srv.log.Info("starting health listener", "port", port)
 
 	serveMux := http.NewServeMux()
 

scripts/run-goreleaser

@@ -2,9 +2,9 @@
 
 set -euo pipefail
 
-go install github.com/goreleaser/goreleaser@v1.23.0
+go install github.com/goreleaser/goreleaser@v1.26.2
 
-if [ ! -z "${harbor_username:-}"]; then
+if [ ! -z "${harbor_username:-}" ]; then
   DOCKER_FILE=~/.docker/config.json
   if [ ! -e $DOCKER_FILE ]; then
     mkdir -p ~/.docker/

tracing/tracing.go

@@ -7,21 +7,37 @@ import (
 	"context"
 	"crypto/tls"
 	"crypto/x509"
+	"errors"
 	"os"
+	"time"
 
 	"go.ntppool.org/common/logger"
 	"go.ntppool.org/common/version"
+	"google.golang.org/grpc/credentials"
+
+	"go.opentelemetry.io/contrib/exporters/autoexport"
 	"go.opentelemetry.io/otel"
 	"go.opentelemetry.io/otel/attribute"
 	"go.opentelemetry.io/otel/exporters/otlp/otlptrace"
+	"go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc"
 	"go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp"
 	"go.opentelemetry.io/otel/propagation"
 	"go.opentelemetry.io/otel/sdk/resource"
 	otelsdktrace "go.opentelemetry.io/otel/sdk/trace"
-	semconv "go.opentelemetry.io/otel/semconv/v1.21.0"
+	semconv "go.opentelemetry.io/otel/semconv/v1.26.0"
 	"go.opentelemetry.io/otel/trace"
 )
 
+const (
+	// svcNameKey is the environment variable name that Service Name information will be read from.
+	svcNameKey = "OTEL_SERVICE_NAME"
+
+	otelExporterOTLPProtoEnvKey       = "OTEL_EXPORTER_OTLP_PROTOCOL"
+	otelExporterOTLPTracesProtoEnvKey = "OTEL_EXPORTER_OTLP_TRACES_PROTOCOL"
+)
+
+var errInvalidOTLPProtocol = errors.New("invalid OTLP protocol - should be one of ['grpc', 'http/protobuf']")
+
 // https://github.com/open-telemetry/opentelemetry-go/blob/main/exporters/otlp/otlptrace/otlptracehttp/example_test.go
 
 type TpShutdownFunc func(ctx context.Context) error
@@ -41,107 +57,194 @@ type TracerConfig struct {
 	ServiceName string
 	Environment string
 	Endpoint    string
+	EndpointURL string
 
 	CertificateProvider GetClientCertificate
 	RootCAs             *x509.CertPool
 }
 
-var emptyTpShutdownFunc = func(_ context.Context) error {
+func InitTracer(ctx context.Context, cfg *TracerConfig) (TpShutdownFunc, error) {
-	return nil
+	// todo: setup environment from cfg
+	return SetupSDK(ctx, cfg)
 }
 
-func InitTracer(ctx context.Context, cfg *TracerConfig) (TpShutdownFunc, error) {
+func SetupSDK(ctx context.Context, cfg *TracerConfig) (shutdown TpShutdownFunc, err error) {
 
 	log := logger.Setup()
 
-	// exporter, err := srv.newStdoutExporter(os.Stdout)
+	if serviceName := os.Getenv(svcNameKey); len(serviceName) == 0 {
+		if len(cfg.ServiceName) > 0 {
+			os.Setenv(svcNameKey, cfg.ServiceName)
+		}
+	}
+
+	resources := []resource.Option{
+		resource.WithFromEnv(),      // Discover and provide attributes from OTEL_RESOURCE_ATTRIBUTES and OTEL_SERVICE_NAME environment variables.
+		resource.WithTelemetrySDK(), // Discover and provide information about the OpenTelemetry SDK used.
+		resource.WithProcess(),      // Discover and provide process information.
+		resource.WithOS(),           // Discover and provide OS information.
+		resource.WithContainer(),    // Discover and provide container information.
+		resource.WithHost(),         // Discover and provide host information.
+
+		// set above via os.Setenv() for WithFromEnv to find
+		// resource.WithAttributes(semconv.ServiceNameKey.String(cfg.ServiceName)),
+
+		resource.WithAttributes(semconv.ServiceVersionKey.String(version.Version())),
+	}
+
+	if len(cfg.Environment) > 0 {
+		resources = append(resources,
+			resource.WithAttributes(attribute.String("environment", cfg.Environment)),
+		)
+	}
+
+	res, err := resource.New(
+		context.Background(),
+		resources...,
+	)
+	if errors.Is(err, resource.ErrPartialResource) || errors.Is(err, resource.ErrSchemaURLConflict) {
+		log.Warn("otel resource setup", "err", err) // Log non-fatal issues.
+	} else if err != nil {
+		log.Error("otel resource setup", "err", err)
+		return
+	}
+
+	var shutdownFuncs []func(context.Context) error
+	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) {
+		err = errors.Join(inErr, shutdown(ctx))
+	}
+
+	prop := newPropagator()
+	otel.SetTextMapPropagator(prop)
 
-	var err error
 	var exporter otelsdktrace.SpanExporter
 
-	if otlpEndPoint := os.Getenv("OTEL_EXPORTER_OTLP_ENDPOINT"); len(otlpEndPoint) > 0 || len(cfg.Endpoint) > 0 {
+	switch os.Getenv("OTEL_TRACES_EXPORTER") {
+	case "":
 		exporter, err = newOLTPExporter(ctx, cfg)
+	case "otlp":
+		exporter, err = newOLTPExporter(ctx, cfg)
+	default:
+		exporter, err = autoexport.NewSpanExporter(ctx)
 	}
-
 	if err != nil {
-		return emptyTpShutdownFunc, err
+		handleErr(err)
+		return
 	}
+	shutdownFuncs = append(shutdownFuncs, exporter.Shutdown)
 
 	if exporter == nil {
 		log.Warn("tracing not configured")
-		return emptyTpShutdownFunc, nil
+		return
 	}
 
-	tp := otelsdktrace.NewTracerProvider(
+	// Set up trace provider.
-		otelsdktrace.WithSampler(otelsdktrace.AlwaysSample()),
+	tracerProvider, err := newTraceProvider(exporter, res)
-		otelsdktrace.WithBatcher(exporter),
+	if err != nil {
-		otelsdktrace.WithResource(newResource(cfg)),
+		handleErr(err)
-	)
+		return
+	}
+	shutdownFuncs = append(shutdownFuncs, tracerProvider.Shutdown)
+	otel.SetTracerProvider(tracerProvider)
 
-	otel.SetTracerProvider(tp)
+	if err != nil {
+		handleErr(err)
+		return
+	}
 
-	otel.SetTextMapPropagator(
+	return
-		propagation.NewCompositeTextMapPropagator(
-			propagation.TraceContext{}, // W3C Trace Context format; https://www.w3.org/TR/trace-context/
-			propagation.Baggage{},
-		),
-	)
-
-	return tp.Shutdown, nil
 }
 
 func newOLTPExporter(ctx context.Context, cfg *TracerConfig) (otelsdktrace.SpanExporter, error) {
 
-	logger.Setup().Warn("newOLTPExporter")
+	log := logger.Setup()
 
-	opts := []otlptracehttp.Option{otlptracehttp.WithCompression(otlptracehttp.GzipCompression)}
+	var tlsConfig *tls.Config
 
 	if cfg.CertificateProvider != nil {
-		logger.Setup().Info("setting up cert provider")
+		tlsConfig = &tls.Config{
-		opts = append(opts, otlptracehttp.WithTLSClientConfig(&tls.Config{
 			GetClientCertificate: cfg.CertificateProvider,
 			RootCAs:              cfg.RootCAs,
-		}))
+		}
-	} else {
-		logger.Setup().Info("no cert provider")
 	}
 
-	if len(cfg.Endpoint) > 0 {
+	proto := os.Getenv(otelExporterOTLPTracesProtoEnvKey)
-		opts = append(opts, otlptracehttp.WithEndpoint(cfg.Endpoint))
+	if proto == "" {
+		proto = os.Getenv(otelExporterOTLPProtoEnvKey)
+	}
+
+	// Fallback to default, http/protobuf.
+	if proto == "" {
+		proto = "http/protobuf"
+	}
+
+	var client otlptrace.Client
+
+	switch proto {
+	case "grpc":
+		opts := []otlptracegrpc.Option{
+			otlptracegrpc.WithCompressor("gzip"),
+		}
+		if tlsConfig != nil {
+			opts = append(opts, otlptracegrpc.WithTLSCredentials(credentials.NewTLS(tlsConfig)))
+		}
+		if len(cfg.Endpoint) > 0 {
+			opts = append(opts, otlptracegrpc.WithEndpoint(cfg.Endpoint))
+		}
+		if len(cfg.EndpointURL) > 0 {
+			opts = append(opts, otlptracegrpc.WithEndpointURL(cfg.EndpointURL))
+		}
+
+		client = otlptracegrpc.NewClient(opts...)
+	case "http/protobuf":
+		opts := []otlptracehttp.Option{
+			otlptracehttp.WithCompression(otlptracehttp.GzipCompression),
+		}
+		if tlsConfig != nil {
+			opts = append(opts, otlptracehttp.WithTLSClientConfig(tlsConfig))
+		}
+		if len(cfg.Endpoint) > 0 {
+			opts = append(opts, otlptracehttp.WithEndpoint(cfg.Endpoint))
+		}
+		if len(cfg.EndpointURL) > 0 {
+			opts = append(opts, otlptracehttp.WithEndpointURL(cfg.EndpointURL))
+		}
+
+		client = otlptracehttp.NewClient(opts...)
+	default:
+		return nil, errInvalidOTLPProtocol
 	}
 
-	client := otlptracehttp.NewClient(opts...)
 	exporter, err := otlptrace.New(ctx, client)
 	if err != nil {
-		logger.Setup().Error("creating OTLP trace exporter", "err", err)
+		log.ErrorContext(ctx, "creating OTLP trace exporter", "err", err)
 	}
 	return exporter, err
 }
 
-// func (srv *Server) newStdoutExporter(w io.Writer) (sdktrace.SpanExporter, error) {
+func newTraceProvider(traceExporter otelsdktrace.SpanExporter, res *resource.Resource) (*otelsdktrace.TracerProvider, error) {
-// 	return stdouttrace.New(
+	traceProvider := otelsdktrace.NewTracerProvider(
-// 		stdouttrace.WithWriter(w),
+		otelsdktrace.WithResource(res),
-// 		// Use human-readable output.
+		otelsdktrace.WithBatcher(traceExporter,
-// 		stdouttrace.WithPrettyPrint(),
+			otelsdktrace.WithBatchTimeout(time.Second*3),
-// 		// Do not print timestamps for the demo.
-// 		stdouttrace.WithoutTimestamps(),
-// 	)
-// }
-
-// newResource returns a resource describing this application.
-func newResource(cfg *TracerConfig) *resource.Resource {
-	r, err := resource.Merge(
-		resource.Default(),
-		resource.NewWithAttributes(
-			semconv.SchemaURL,
-			semconv.ServiceNameKey.String(cfg.ServiceName),
-			semconv.ServiceVersionKey.String(version.Version()),
-			attribute.String("environment", cfg.Environment),
 		),
 	)
-	if err != nil {
+	return traceProvider, nil
-		panic(err)
+}
-	}
+
-
+func newPropagator() propagation.TextMapPropagator {
-	return r
+	return propagation.NewCompositeTextMapPropagator(
+		propagation.TraceContext{},
+		propagation.Baggage{},
+	)
 }

tracing/tracing_test.go

@@ -0,0 +1,22 @@
+package tracing
+
+import (
+	"context"
+	"os"
+	"testing"
+)
+
+func TestInit(t *testing.T) {
+
+	ctx, cancel := context.WithCancel(context.Background())
+	defer cancel()
+
+	os.Setenv("OTEL_EXPORTER_OTLP_ENDPOINT", "localhost")
+
+	shutdownFn, err := InitTracer(ctx, &TracerConfig{})
+	if err != nil {
+		t.FailNow()
+	}
+	defer shutdownFn(ctx)
+
+}

version/version.go

@@ -92,6 +92,7 @@ func VersionCmd(name string) *cobra.Command {
 
 func RegisterMetric(name string, registry prometheus.Registerer) {
 	if len(name) > 0 {
+		name = strings.ReplaceAll(name, "-", "_")
 		name = name + "_build_info"
 	} else {
 		name = "build_info"
@@ -152,3 +153,14 @@ func Version() string {
 	v = fmt.Sprintf("%s (%s)", v, strings.Join(extra, ", "))
 	return v
 }
+
+func CheckVersion(version, minimumVersion string) bool {
+	if version == "dev-snapshot" {
+		return true
+	}
+	if semver.Compare(version, minimumVersion) < 0 {
+		// log.Debug("version too old", "v", cl.Version.Version)
+		return false
+	}
+	return true
+}