[feature] Support OTLP HTTP, drop Jaeger (#2184)

* [feature] Add http trace exporter, drop Jaeger

Jaeger supports ingesting traces using the OpenTelemetry gRPC or HTTP
methods. The Jaeger project has deprecated the old jaeger transport.

* Add support for submitting traces over HTTP
* Drop support for the old Jaeger protocol
* Upgrade the trace libraries to v1.17

Fixes: #2176
Fixes: #2179

3 files changed, 13 insertions, 7 deletions

diff --git a/internal/config/config.go b/internal/config/config.go
index 5da226237..16ef32a8b 100644
--- a/internal/config/config.go
+++ b/internal/config/config.go
@@ -131,9 +131,9 @@ type Configuration struct {
 	OIDCAdminGroups      []string `name:"oidc-admin-groups" usage:"Membership of one of the listed groups makes someone a GtS admin"`
 
 	TracingEnabled           bool   `name:"tracing-enabled" usage:"Enable OTLP Tracing"`
-	TracingTransport         string `name:"tracing-transport" usage:"grpc or jaeger"`
-	TracingEndpoint          string `name:"tracing-endpoint" usage:"Endpoint of your trace collector. Eg., 'localhost:4317' for gRPC, 'http://localhost:14268/api/traces' for jaeger"`
-	TracingInsecureTransport bool   `name:"tracing-insecure" usage:"Disable HTTPS for the gRPC transport protocol"`
+	TracingTransport         string `name:"tracing-transport" usage:"grpc or http"`
+	TracingEndpoint          string `name:"tracing-endpoint" usage:"Endpoint of your trace collector. Eg., 'localhost:4317' for gRPC, 'localhost:4318' for http"`
+	TracingInsecureTransport bool   `name:"tracing-insecure-transport" usage:"Disable TLS for the gRPC or HTTP transport protocol"`
 
 	SMTPHost               string `name:"smtp-host" usage:"Host of the smtp server. Eg., 'smtp.eu.mailgun.org'"`
 	SMTPPort               int    `name:"smtp-port" usage:"Port of the smtp server. Eg., 587"`
diff --git a/internal/config/helpers.gen.go b/internal/config/helpers.gen.go
index a515da200..f232d37a3 100644
--- a/internal/config/helpers.gen.go
+++ b/internal/config/helpers.gen.go
@@ -1991,7 +1991,7 @@ func (st *ConfigState) SetTracingInsecureTransport(v bool) {
 }
 
 // TracingInsecureTransportFlag returns the flag name for the 'TracingInsecureTransport' field
-func TracingInsecureTransportFlag() string { return "tracing-insecure" }
+func TracingInsecureTransportFlag() string { return "tracing-insecure-transport" }
 
 // GetTracingInsecureTransport safely fetches the value for global configuration 'TracingInsecureTransport' field
 func GetTracingInsecureTransport() bool { return global.GetTracingInsecureTransport() }
diff --git a/internal/tracing/tracing.go b/internal/tracing/tracing.go
index 16e5a5eb5..a0b25f487 100644
--- a/internal/tracing/tracing.go
+++ b/internal/tracing/tracing.go
@@ -29,8 +29,8 @@ import (
 	"github.com/uptrace/bun/extra/bunotel"
 	"go.opentelemetry.io/otel"
 	"go.opentelemetry.io/otel/attribute"
-	"go.opentelemetry.io/otel/exporters/jaeger"
 	"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"
 	"go.opentelemetry.io/otel/sdk/trace"
@@ -69,8 +69,14 @@ func Initialize() error {
 			return fmt.Errorf("building tracing exporter: %w", err)
 		}
 		tpo = trace.WithBatcher(exp)
-	case "jaeger":
-		exp, err := jaeger.New(jaeger.WithCollectorEndpoint(jaeger.WithEndpoint(config.GetTracingEndpoint())))
+	case "http":
+		opts := []otlptracehttp.Option{
+			otlptracehttp.WithEndpoint(config.GetTracingEndpoint()),
+		}
+		if insecure {
+			opts = append(opts, otlptracehttp.WithInsecure())
+		}
+		exp, err := otlptracehttp.New(context.Background(), opts...)
 		if err != nil {
 			return fmt.Errorf("building tracing exporter: %w", err)
 		}