mirror of
https://github.com/open-telemetry/opentelemetry-go.git
synced 2025-01-26 03:52:03 +02:00
dfece3d2b9
* Push->basic * Repackage * Rename away from push * Make exporter optional; export from a separate goroutine * Move pull_test into controller_test * Precommit pass * New OTLP/Prom example * Precommit * Fix the example * Shorten the example * Test starting controller w/o exporter * Test export timeout * Remove ancient example & lint * go.mod revert & tidy * Comments * Tidy a diff * Tidy a diff * Move export kind selector in the new example * Split this test into its original parts * Reduce diff size * Changelog * Remove extra Add/Done pair * Remove unused stopCh param; document the Stop behavior * Typo * Use ctx * Missed v0.15 * Apply PR feedback * Precommit pass * 0.14 -> 0.15 in new file * Remove diff chunk markers * Fix OTLP example * Upstream * dashpole comments * aneurysm9 feedback * Tidy go.sum
124 lines
3.2 KiB
Go
124 lines
3.2 KiB
Go
// Copyright The 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 main
|
|
|
|
import (
|
|
"context"
|
|
"log"
|
|
"math/rand"
|
|
"net/http"
|
|
"time"
|
|
|
|
"google.golang.org/grpc"
|
|
|
|
"go.opentelemetry.io/otel"
|
|
"go.opentelemetry.io/otel/exporters/metric/prometheus"
|
|
"go.opentelemetry.io/otel/exporters/otlp"
|
|
"go.opentelemetry.io/otel/exporters/otlp/otlpgrpc"
|
|
"go.opentelemetry.io/otel/label"
|
|
"go.opentelemetry.io/otel/metric"
|
|
controller "go.opentelemetry.io/otel/sdk/metric/controller/basic"
|
|
processor "go.opentelemetry.io/otel/sdk/metric/processor/basic"
|
|
"go.opentelemetry.io/otel/sdk/metric/selector/simple"
|
|
"go.opentelemetry.io/otel/sdk/resource"
|
|
)
|
|
|
|
func initMeter() {
|
|
ctx := context.Background()
|
|
|
|
res, err := resource.New(
|
|
ctx,
|
|
resource.WithAttributes(label.String("R", "V")),
|
|
)
|
|
if err != nil {
|
|
log.Fatal("could not initialize resource:", err)
|
|
}
|
|
|
|
driver := otlpgrpc.NewDriver(
|
|
otlpgrpc.WithInsecure(),
|
|
otlpgrpc.WithEndpoint("localhost:30080"),
|
|
otlpgrpc.WithDialOption(grpc.WithBlock()), // useful for testing
|
|
)
|
|
otlpExporter, err := otlp.NewExporter(ctx, driver)
|
|
|
|
if err != nil {
|
|
log.Fatal("could not initialize OTLP:", err)
|
|
}
|
|
|
|
cont := controller.New(
|
|
processor.New(
|
|
simple.NewWithHistogramDistribution([]float64{
|
|
0.001, 0.01, 0.1, 1, 10, 100, 1000,
|
|
}),
|
|
otlpExporter, // otlpExporter is an ExportKindSelector
|
|
processor.WithMemory(true),
|
|
),
|
|
controller.WithResource(res),
|
|
controller.WithPusher(otlpExporter),
|
|
)
|
|
|
|
if err := cont.Start(context.Background()); err != nil {
|
|
log.Fatal("could not start controller:", err)
|
|
}
|
|
|
|
promExporter, err := prometheus.NewExporter(prometheus.Config{}, cont)
|
|
if err != nil {
|
|
log.Fatal("could not initialize prometheus:", err)
|
|
}
|
|
http.HandleFunc("/", promExporter.ServeHTTP)
|
|
go func() {
|
|
log.Fatal(http.ListenAndServe(":17000", nil))
|
|
}()
|
|
|
|
otel.SetMeterProvider(cont.MeterProvider())
|
|
|
|
log.Println("Prometheus server running on :17000")
|
|
log.Println("Exporting OTLP to :30080")
|
|
}
|
|
|
|
func main() {
|
|
initMeter()
|
|
|
|
labels := []label.KeyValue{
|
|
label.String("label1", "value1"),
|
|
}
|
|
|
|
meter := otel.Meter("ex.com/prom-collector")
|
|
_ = metric.Must(meter).NewFloat64ValueObserver(
|
|
"randval",
|
|
func(_ context.Context, result metric.Float64ObserverResult) {
|
|
result.Observe(
|
|
rand.Float64(),
|
|
labels...,
|
|
)
|
|
},
|
|
metric.WithDescription("A random value"),
|
|
)
|
|
|
|
temperature := metric.Must(meter).NewFloat64ValueRecorder("temperature")
|
|
interrupts := metric.Must(meter).NewInt64Counter("interrupts")
|
|
|
|
ctx := context.Background()
|
|
|
|
log.Println("Example is running, please visit :17000")
|
|
|
|
for {
|
|
temperature.Record(ctx, 100+10*rand.NormFloat64(), labels...)
|
|
interrupts.Add(ctx, int64(rand.Intn(100)), labels...)
|
|
|
|
time.Sleep(time.Second * time.Duration(rand.Intn(10)))
|
|
}
|
|
}
|