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opentelemetry-go/exporters/otlp/example_test.go
2020-03-11 08:23:32 -07:00

104 lines
3.0 KiB
Go

// Copyright 2020, OpenTelemetry Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package otlp_test
import (
"context"
"fmt"
"log"
"time"
"google.golang.org/grpc/credentials"
"go.opentelemetry.io/otel/api/global"
"go.opentelemetry.io/otel/exporters/otlp"
sdktrace "go.opentelemetry.io/otel/sdk/trace"
)
func Example_insecure() {
exp, err := otlp.NewExporter(otlp.WithInsecure())
if err != nil {
log.Fatalf("Failed to create the collector exporter: %v", err)
}
defer func() {
_ = exp.Stop()
}()
tp, _ := sdktrace.NewProvider(
sdktrace.WithConfig(sdktrace.Config{DefaultSampler: sdktrace.AlwaysSample()}),
sdktrace.WithBatcher(exp, // add following two options to ensure flush
sdktrace.WithScheduleDelayMillis(5),
sdktrace.WithMaxExportBatchSize(10),
))
if err != nil {
log.Fatalf("error creating trace provider: %v\n", err)
}
global.SetTraceProvider(tp)
tracer := global.Tracer("test-tracer")
// Then use the OpenTelemetry tracing library, like we normally would.
ctx, span := tracer.Start(context.Background(), "CollectorExporter-Example")
defer span.End()
for i := 0; i < 10; i++ {
_, iSpan := tracer.Start(ctx, fmt.Sprintf("Sample-%d", i))
<-time.After(6 * time.Millisecond)
iSpan.End()
}
}
func Example_withTLS() {
// Please take at look at https://godoc.org/google.golang.org/grpc/credentials#TransportCredentials
// for ways on how to initialize gRPC TransportCredentials.
creds, err := credentials.NewClientTLSFromFile("my-cert.pem", "")
if err != nil {
log.Fatalf("failed to create gRPC client TLS credentials: %v", err)
}
exp, err := otlp.NewExporter(otlp.WithTLSCredentials(creds))
if err != nil {
log.Fatalf("failed to create the collector exporter: %v", err)
}
defer func() {
_ = exp.Stop()
}()
tp, err := sdktrace.NewProvider(
sdktrace.WithConfig(sdktrace.Config{DefaultSampler: sdktrace.AlwaysSample()}),
sdktrace.WithBatcher(exp, // add following two options to ensure flush
sdktrace.WithScheduleDelayMillis(5),
sdktrace.WithMaxExportBatchSize(10),
))
if err != nil {
log.Fatalf("error creating trace provider: %v\n", err)
}
global.SetTraceProvider(tp)
tracer := global.Tracer("test-tracer")
// Then use the OpenTelemetry tracing library, like we normally would.
ctx, span := tracer.Start(context.Background(), "Securely-Talking-To-Collector-Span")
defer span.End()
for i := 0; i < 10; i++ {
_, iSpan := tracer.Start(ctx, fmt.Sprintf("Sample-%d", i))
<-time.After(6 * time.Millisecond)
iSpan.End()
}
}