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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,76 @@ | ||
| package otelgrpc | ||
|
|
||
| import ( | ||
| "context" | ||
| "time" | ||
|
|
||
| "github.com/douyu/jupiter/pkg" | ||
| "github.com/douyu/jupiter/pkg/conf" | ||
| "github.com/douyu/jupiter/pkg/xlog" | ||
| "go.opentelemetry.io/otel" | ||
| "go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc" | ||
| "go.opentelemetry.io/otel/sdk/resource" | ||
| tracesdk "go.opentelemetry.io/otel/sdk/trace" | ||
| semconv "go.opentelemetry.io/otel/semconv/v1.12.0" | ||
| "go.opentelemetry.io/otel/trace" | ||
| "google.golang.org/grpc" | ||
| "google.golang.org/grpc/credentials/insecure" | ||
| ) | ||
|
|
||
| type Config struct { | ||
| Name string | ||
| Endpoint string | ||
| Sampler float64 | ||
| } | ||
|
|
||
| // RawConfig ... | ||
| func RawConfig(key string) *Config { | ||
| var config = DefaultConfig() | ||
| if err := conf.UnmarshalKey(key, config); err != nil { | ||
| xlog.Jupiter().Panic("unmarshal key", xlog.Any("err", err)) | ||
| } | ||
| return config | ||
| } | ||
|
|
||
| // DefaultConfig ... | ||
| func DefaultConfig() *Config { | ||
| return &Config{ | ||
| Name: pkg.Name(), | ||
| Endpoint: "localhost:4317", | ||
| Sampler: 0, | ||
| } | ||
| } | ||
|
|
||
| // Build ... | ||
| func (config *Config) Build() trace.TracerProvider { | ||
|
|
||
| ctx, cancel := context.WithTimeout(context.Background(), time.Second) | ||
| defer cancel() | ||
|
|
||
| conn, err := grpc.DialContext(ctx, config.Endpoint, grpc.WithTransportCredentials(insecure.NewCredentials()), grpc.WithBlock()) | ||
| if err != nil { | ||
| xlog.Jupiter().Panic("new otelgrpc", xlog.FieldMod("build"), xlog.FieldErr(err)) | ||
| return nil | ||
| } | ||
|
|
||
| // Set up a trace exporter | ||
| traceExporter, err := otlptracegrpc.New(ctx, otlptracegrpc.WithGRPCConn(conn)) | ||
| if err != nil { | ||
| xlog.Jupiter().Panic("new otelgrpc", xlog.FieldMod("build"), xlog.FieldErr(err)) | ||
| return nil | ||
| } | ||
|
|
||
| tp := tracesdk.NewTracerProvider( | ||
| // Set the sampling rate based on the parent span to 100% | ||
| tracesdk.WithSampler(tracesdk.ParentBased(tracesdk.TraceIDRatioBased(config.Sampler))), | ||
| // Always be sure to batch in production. | ||
| tracesdk.WithBatcher(traceExporter), | ||
| // Record information about this application in an Resource. | ||
| tracesdk.WithResource(resource.NewSchemaless( | ||
| semconv.TelemetrySDKLanguageGo, | ||
| semconv.ServiceNameKey.String(config.Name), | ||
| )), | ||
| ) | ||
| otel.SetTracerProvider(tp) | ||
| return tp | ||
| } |
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