Add OTLP HTTP exporter (#10)

* Add OTLP HTTP exporter

* Increase lint timeout

* Add suggestions

Author: mapno

examples/param/docker-compose.yml

@@ -24,4 +24,5 @@ services:
       - "14268:14268"
       - "55678-55679:55678-55679"
       - "4317:4317"
+      - "4318:4318"
       - "9411:9411"

examples/shared/collector-config.yaml

@@ -2,6 +2,7 @@ receivers:
   otlp:
     protocols:
       grpc:
+      http:
   jaeger:
     protocols:
       grpc:

examples/template/docker-compose.yml

@@ -24,4 +24,5 @@ services:
       - "14268:14268"
       - "55678-55679:55678-55679"
       - "4317:4317"
+      - "4318:4318"
       - "9411:9411"

go.mod

@@ -21,6 +21,7 @@ require (
 	github.com/davecgh/go-spew v1.1.1 // indirect
 	github.com/dlclark/regexp2 v1.7.0 // indirect
 	github.com/fatih/color v1.13.0 // indirect
+	github.com/felixge/httpsnoop v1.0.3 // indirect
 	github.com/go-logr/logr v1.2.3 // indirect
 	github.com/go-logr/stdr v1.2.2 // indirect
 	github.com/go-sourcemap/sourcemap v2.1.4-0.20211119122758-180fcef48034+incompatible // indirect
@@ -47,6 +48,7 @@ require (
 	github.com/opentracing/opentracing-go v1.2.0 // indirect
 	github.com/oxtoacart/bpool v0.0.0-20190530202638-03653db5a59c // indirect
 	github.com/pmezard/go-difflib v1.0.0 // indirect
+	github.com/rs/cors v1.8.2 // indirect
 	github.com/serenize/snaker v0.0.0-20201027110005-a7ad2135616e // indirect
 	github.com/sirupsen/logrus v1.9.0 // indirect
 	github.com/spf13/afero v1.8.2 // indirect
@@ -55,6 +57,7 @@ require (
 	go.opencensus.io v0.23.0 // indirect
 	go.opentelemetry.io/collector/semconv v0.62.1 // indirect
 	go.opentelemetry.io/contrib/instrumentation/google.golang.org/grpc/otelgrpc v0.36.1 // indirect
+	go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.36.1 // indirect
 	go.opentelemetry.io/otel v1.11.1 // indirect
 	go.uber.org/atomic v1.10.0 // indirect
 	go.uber.org/multierr v1.8.0 // indirect

go.sum

@@ -111,6 +111,8 @@ github.com/fatih/color v1.9.0/go.mod h1:eQcE1qtQxscV5RaZvpXrrb8Drkc3/DdQ+uUYCNjL
 github.com/fatih/color v1.13.0 h1:8LOYc1KYPPmyKMuN8QV2DNRWNbLo6LZ0iLs8+mlH53w=
 github.com/fatih/color v1.13.0/go.mod h1:kLAiJbzzSOZDVNGyDpeOxJ47H46qBXwg5ILebYFFOfk=
 github.com/fatih/structs v1.1.0/go.mod h1:9NiDSp5zOcgEDl+j00MP/WkGVPOlPRLejGD8Ga6PJ7M=
+github.com/felixge/httpsnoop v1.0.3 h1:s/nj+GCswXYzN5v2DpNMuMQYe+0DDwt5WVCU6CWBdXk=
+github.com/felixge/httpsnoop v1.0.3/go.mod h1:m8KPJKqk1gH5J9DgRY2ASl2lWCfGKXixSwevea8zH2U=
 github.com/frankban/quicktest v1.14.0/go.mod h1:NeW+ay9A/U67EYXNFA1nPE8e/tnQv/09mUdL/ijj8og=
 github.com/fsnotify/fsnotify v1.4.9/go.mod h1:znqG4EE+3YCdAaPaxE2ZRY/06pZUdp0tY4IgpuI1SZQ=
 github.com/fsnotify/fsnotify v1.5.4 h1:jRbGcIw6P2Meqdwuo0H1p6JVLbL5DHKAKlYndzMwVZI=
@@ -384,6 +386,8 @@ github.com/rogpeppe/fastuuid v1.2.0/go.mod h1:jVj6XXZzXRy/MSR5jhDC/2q6DgLz+nrA6L
 github.com/rogpeppe/go-internal v1.3.0/go.mod h1:M8bDsm7K2OlrFYOpmOWEs/qY81heoFRclV5y23lUDJ4=
 github.com/rogpeppe/go-internal v1.6.1/go.mod h1:xXDCJY+GAPziupqXw64V24skbSoqbTEfhy4qGm1nDQc=
 github.com/rogpeppe/go-internal v1.6.2 h1:aIihoIOHCiLZHxyoNQ+ABL4NKhFTgKLBdMLyEAh98m0=
+github.com/rs/cors v1.8.2 h1:KCooALfAYGs415Cwu5ABvv9n9509fSiG5SQJn/AQo4U=
+github.com/rs/cors v1.8.2/go.mod h1:XyqrcTp5zjWr1wsJ8PIRZssZ8b/WMcMf71DJnit4EMU=
 github.com/ryanuber/columnize v0.0.0-20160712163229-9b3edd62028f/go.mod h1:sm1tb6uqfes/u+d4ooFouqFdy9/2g9QGwK3SQygK0Ts=
 github.com/ryanuber/columnize v2.1.0+incompatible/go.mod h1:sm1tb6uqfes/u+d4ooFouqFdy9/2g9QGwK3SQygK0Ts=
 github.com/ryanuber/go-glob v1.0.0/go.mod h1:807d1WSdnB0XRJzKNil9Om6lcp/3a0v4qIHxIXzX/Yc=
@@ -444,6 +448,8 @@ go.opentelemetry.io/collector/semconv v0.62.1 h1:tfld9R7V/aMYyq0VJ8uwaMDL+WCJr6Q
 go.opentelemetry.io/collector/semconv v0.62.1/go.mod h1:aRkHuJ/OshtDFYluKEtnG5nkKTsy1HZuvZVHmakx+Vo=
 go.opentelemetry.io/contrib/instrumentation/google.golang.org/grpc/otelgrpc v0.36.1 h1:RQxI9u7XGv+E9x35YWa3jZhdpsphaV7VvBArNSiDtMw=
 go.opentelemetry.io/contrib/instrumentation/google.golang.org/grpc/otelgrpc v0.36.1/go.mod h1:ylJH0hLC6Bp40dYp8rctk9HIuEM/xQRbV05d9HGTktQ=
+go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.36.1 h1:ledXJmnPfXGbE/gO4/PWSBsJGonnq6czWLrdHfQxeTU=
+go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.36.1/go.mod h1:W6/Lb2w3nD2K/l+4SzaqJUr2Ibj2uHA+PdFZlO5cWus=
 go.opentelemetry.io/otel v1.11.1 h1:4WLLAmcfkmDk2ukNXJyq3/kiz/3UzCaYq6PskJsaou4=
 go.opentelemetry.io/otel v1.11.1/go.mod h1:1nNhXBbWSD0nsL38H6btgnFN2k4i0sNLHNNMZMSbUGE=
 go.opentelemetry.io/otel/metric v0.32.1 h1:ftff5LSBCIDwL0UkhBuDg8j9NNxx2IusvJ18q9h6RC4=

golangci.yml

@@ -1,4 +1,6 @@
 run:
+  timeout: 2m
+
   issues-exit-code: 1
   tests: true
 

tracing.go

@@ -17,8 +17,10 @@ import (
 	"go.opentelemetry.io/collector/component/componenttest"
 	"go.opentelemetry.io/collector/config"
 	"go.opentelemetry.io/collector/config/configgrpc"
+	"go.opentelemetry.io/collector/config/confighttp"
 	"go.opentelemetry.io/collector/config/configtls"
 	"go.opentelemetry.io/collector/exporter/otlpexporter"
+	"go.opentelemetry.io/collector/exporter/otlphttpexporter"
 	"go.opentelemetry.io/collector/pdata/ptrace"
 	"go.opentelemetry.io/otel/metric"
 	"go.opentelemetry.io/otel/trace"
@@ -29,9 +31,10 @@ import (
 type exporterType string
 
 const (
-	exporterNone   exporterType = ""
-	exporterOTLP   exporterType = "otlp"
-	exporterJaeger exporterType = "jaeger"
+	exporterNone     exporterType = ""
+	exporterOTLP     exporterType = "otlp"
+	exporterOTLPHTTP exporterType = "otlphttp"
+	exporterJaeger   exporterType = "jaeger"
 )
 
 var (
@@ -66,10 +69,11 @@ func (ct *TracingModule) Exports() modules.Exports {
 	return modules.Exports{
 		Named: map[string]interface{}{
 			// constants
-			"SEMANTICS_HTTP":  tracegen.SemanticsHTTP,
-			"SEMANTICS_DB":    tracegen.SemanticsDB,
-			"EXPORTER_OTLP":   exporterOTLP,
-			"EXPORTER_JAEGER": exporterJaeger,
+			"SEMANTICS_HTTP":     tracegen.SemanticsHTTP,
+			"SEMANTICS_DB":       tracegen.SemanticsDB,
+			"EXPORTER_OTLP":      exporterOTLP,
+			"EXPORTER_OTLP_HTTP": exporterOTLPHTTP,
+			"EXPORTER_JAEGER":    exporterJaeger,
 			// constructors
 			"Client":                 ct.newClient,
 			"ParameterizedGenerator": ct.newParameterizedGenerator,
@@ -188,6 +192,18 @@ func NewClient(cfg *ClientConfig, vu modules.VU) (*Client, error) {
 				"Authorization": "Basic " + base64.StdEncoding.EncodeToString([]byte(cfg.Authentication.User+":"+cfg.Authentication.Password)),
 			}, cfg.Headers),
 		}
+	case exporterOTLPHTTP:
+		factory = otlphttpexporter.NewFactory()
+		exporterCfg = factory.CreateDefaultConfig()
+		exporterCfg.(*otlphttpexporter.Config).HTTPClientSettings = confighttp.HTTPClientSettings{
+			Endpoint: cfg.Endpoint,
+			TLSSetting: configtls.TLSClientSetting{
+				Insecure: cfg.Insecure,
+			},
+			Headers: util.MergeMaps(map[string]string{
+				"Authorization": "Basic " + base64.StdEncoding.EncodeToString([]byte(cfg.Authentication.User+":"+cfg.Authentication.Password)),
+			}, cfg.Headers),
+		}
 	default:
 		return nil, errors.Errorf("failed to init exporter: unknown exporter type %s", cfg.Exporter)
 	}