85 lines
2.1 KiB
Go
85 lines
2.1 KiB
Go
package bootstrap
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import (
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"errors"
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"go.opentelemetry.io/otel/exporters/jaeger"
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"go.opentelemetry.io/otel/exporters/zipkin"
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"github.com/tx7do/kratos-bootstrap/gen/api/go/conf/v1"
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"go.opentelemetry.io/otel"
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"go.opentelemetry.io/otel/attribute"
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"go.opentelemetry.io/otel/sdk/resource"
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traceSdk "go.opentelemetry.io/otel/sdk/trace"
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semConv "go.opentelemetry.io/otel/semconv/v1.4.0"
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)
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// NewJaegerExporter 创建一个jaeger导出器
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func NewJaegerExporter(endpoint string) (traceSdk.SpanExporter, error) {
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return jaeger.New(jaeger.WithCollectorEndpoint(jaeger.WithEndpoint(endpoint)))
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}
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// NewZipkinExporter 创建一个zipkin导出器
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func NewZipkinExporter(endpoint string) (traceSdk.SpanExporter, error) {
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return zipkin.New(endpoint)
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}
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// NewTracerExporter 创建一个导出器，支持：jaeger和zipkin
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func NewTracerExporter(exporterName, endpoint string) (traceSdk.SpanExporter, error) {
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if exporterName == "" {
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exporterName = "jaeger"
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}
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switch exporterName {
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case "jaeger":
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return NewJaegerExporter(endpoint)
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case "zipkin":
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return NewZipkinExporter(endpoint)
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default:
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return nil, errors.New("exporter type not support")
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}
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}
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// NewTracerProvider 创建一个链路追踪器
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func NewTracerProvider(cfg *conf.Tracer, serviceInfo *ServiceInfo) error {
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if cfg == nil {
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return errors.New("tracer config is nil")
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}
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if cfg.Sampler == 0 {
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cfg.Sampler = 1.0
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}
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if cfg.Env == "" {
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cfg.Env = "dev"
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}
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opts := []traceSdk.TracerProviderOption{
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traceSdk.WithSampler(traceSdk.ParentBased(traceSdk.TraceIDRatioBased(cfg.Sampler))),
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traceSdk.WithResource(resource.NewSchemaless(
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semConv.ServiceNameKey.String(serviceInfo.Name),
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semConv.ServiceVersionKey.String(serviceInfo.Version),
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semConv.ServiceInstanceIDKey.String(serviceInfo.Id),
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attribute.String("env", cfg.Env),
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)),
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}
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if len(cfg.Endpoint) > 0 {
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exp, err := NewTracerExporter(cfg.Batcher, cfg.Endpoint)
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if err != nil {
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panic(err)
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}
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opts = append(opts, traceSdk.WithBatcher(exp))
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}
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tp := traceSdk.NewTracerProvider(opts...)
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if tp == nil {
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return errors.New("create tracer provider failed")
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}
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otel.SetTracerProvider(tp)
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return nil
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}
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