| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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 pixiu |
| |
| import ( |
| "net/http" |
| "strconv" |
| ) |
| |
| import ( |
| "go.opentelemetry.io/otel/exporters/prometheus" |
| |
| "go.opentelemetry.io/otel/metric/global" |
| |
| export "go.opentelemetry.io/otel/sdk/export/metric" |
| "go.opentelemetry.io/otel/sdk/metric/aggregator/histogram" |
| controller "go.opentelemetry.io/otel/sdk/metric/controller/basic" |
| processor "go.opentelemetry.io/otel/sdk/metric/processor/basic" |
| selector "go.opentelemetry.io/otel/sdk/metric/selector/simple" |
| "go.opentelemetry.io/otel/sdk/resource" |
| |
| semconv "go.opentelemetry.io/otel/semconv/v1.4.0" |
| ) |
| |
| import ( |
| "github.com/apache/dubbo-go-pixiu/pkg/logger" |
| "github.com/apache/dubbo-go-pixiu/pkg/model" |
| ) |
| |
| func registerOtelMetricMeter(conf model.Metric) { |
| if conf.Enable { |
| config := prometheus.Config{} |
| resources := resource.NewWithAttributes( |
| semconv.SchemaURL, |
| ) |
| c := controller.New( |
| processor.New( |
| selector.NewWithHistogramDistribution( |
| histogram.WithExplicitBoundaries(config.DefaultHistogramBoundaries), |
| ), |
| export.CumulativeExportKindSelector(), |
| processor.WithMemory(true), |
| ), |
| controller.WithResource(resources), |
| ) |
| exporter, err := prometheus.New(config, c) |
| if err != nil { |
| logger.Error("failed to initialize prometheus exporter %v", err) |
| } |
| global.SetMeterProvider(exporter.MeterProvider()) |
| |
| http.HandleFunc("/", exporter.ServeHTTP) |
| addr := ":" + strconv.Itoa(conf.PrometheusPort) |
| go func() { |
| _ = http.ListenAndServe(addr, nil) |
| }() |
| |
| logger.Info("Prometheus server running on " + addr) |
| } |
| } |