mirror of
https://github.com/open-telemetry/opentelemetry-go.git
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bd0bba43b5
to provide consistent naming across the code base, deprecate pusher in favor of exporter naming convention. Signed-off-by: ldelossa <ldelossa@redhat.com> Co-authored-by: Tyler Yahn <MrAlias@users.noreply.github.com>
127 lines
3.4 KiB
Go
127 lines
3.4 KiB
Go
// Copyright The OpenTelemetry Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package main
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import (
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"context"
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"log"
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"math/rand"
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"net/http"
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"time"
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"google.golang.org/grpc"
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"go.opentelemetry.io/otel/attribute"
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"go.opentelemetry.io/otel/exporters/metric/prometheus"
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"go.opentelemetry.io/otel/exporters/otlp"
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"go.opentelemetry.io/otel/exporters/otlp/otlpgrpc"
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"go.opentelemetry.io/otel/metric"
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"go.opentelemetry.io/otel/metric/global"
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"go.opentelemetry.io/otel/sdk/metric/aggregator/histogram"
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controller "go.opentelemetry.io/otel/sdk/metric/controller/basic"
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processor "go.opentelemetry.io/otel/sdk/metric/processor/basic"
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"go.opentelemetry.io/otel/sdk/metric/selector/simple"
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"go.opentelemetry.io/otel/sdk/resource"
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)
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func initMeter() {
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ctx := context.Background()
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res, err := resource.New(
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ctx,
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resource.WithAttributes(attribute.String("R", "V")),
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)
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if err != nil {
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log.Fatal("could not initialize resource:", err)
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}
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driver := otlpgrpc.NewDriver(
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otlpgrpc.WithInsecure(),
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otlpgrpc.WithEndpoint("localhost:30080"),
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otlpgrpc.WithDialOption(grpc.WithBlock()), // useful for testing
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)
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otlpExporter, err := otlp.NewExporter(ctx, driver)
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if err != nil {
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log.Fatal("could not initialize OTLP:", err)
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}
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cont := controller.New(
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processor.New(
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simple.NewWithHistogramDistribution(
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histogram.WithExplicitBoundaries([]float64{
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0.001, 0.01, 0.1, 1, 10, 100, 1000,
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}),
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),
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otlpExporter, // otlpExporter is an ExportKindSelector
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processor.WithMemory(true),
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),
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controller.WithResource(res),
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controller.WithExporter(otlpExporter),
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)
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if err := cont.Start(context.Background()); err != nil {
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log.Fatal("could not start controller:", err)
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}
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promExporter, err := prometheus.NewExporter(prometheus.Config{}, cont)
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if err != nil {
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log.Fatal("could not initialize prometheus:", err)
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}
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http.HandleFunc("/", promExporter.ServeHTTP)
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go func() {
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log.Fatal(http.ListenAndServe(":17000", nil))
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}()
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global.SetMeterProvider(cont.MeterProvider())
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log.Println("Prometheus server running on :17000")
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log.Println("Exporting OTLP to :30080")
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}
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func main() {
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initMeter()
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labels := []attribute.KeyValue{
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attribute.String("label1", "value1"),
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}
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meter := global.Meter("ex.com/prom-collector")
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_ = metric.Must(meter).NewFloat64ValueObserver(
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"randval",
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func(_ context.Context, result metric.Float64ObserverResult) {
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result.Observe(
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rand.Float64(),
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labels...,
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)
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},
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metric.WithDescription("A random value"),
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)
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temperature := metric.Must(meter).NewFloat64ValueRecorder("temperature")
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interrupts := metric.Must(meter).NewInt64Counter("interrupts")
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ctx := context.Background()
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log.Println("Example is running, please visit :17000")
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for {
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temperature.Record(ctx, 100+10*rand.NormFloat64(), labels...)
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interrupts.Add(ctx, int64(rand.Intn(100)), labels...)
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time.Sleep(time.Second * time.Duration(rand.Intn(10)))
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}
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}
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