mirror of https://github.com/goharbor/harbor.git
138 lines
4.5 KiB
Go
138 lines
4.5 KiB
Go
// Copyright Project Harbor 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 trace
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import (
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"context"
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"time"
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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/exporters/jaeger"
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"go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp"
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"go.opentelemetry.io/otel/propagation"
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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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"go.opentelemetry.io/otel/trace/noop"
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"github.com/goharbor/harbor/src/lib/log"
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"github.com/goharbor/harbor/src/pkg/version"
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)
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func initExporter(ctx context.Context) (tracesdk.SpanExporter, error) {
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var err error
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var exp tracesdk.SpanExporter
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cfg := GetGlobalConfig()
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if len(cfg.Jaeger.Endpoint) != 0 {
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// Jaeger collector exporter
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log.Infof("init trace provider jaeger collector on %s with user %s", cfg.Jaeger.Endpoint, cfg.Jaeger.Username)
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exp, err = jaeger.New(jaeger.WithCollectorEndpoint(
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jaeger.WithEndpoint(cfg.Jaeger.Endpoint),
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jaeger.WithUsername(cfg.Jaeger.Username),
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jaeger.WithPassword(cfg.Jaeger.Password),
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))
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} else if len(cfg.Jaeger.AgentHost) != 0 {
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// Jaeger agent exporter
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log.Infof("init trace provider jaeger agent on %s", cfg.Jaeger.AgentHost)
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exp, err = jaeger.New(jaeger.WithAgentEndpoint(
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jaeger.WithAgentHost(cfg.Jaeger.AgentHost),
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jaeger.WithAgentPort(cfg.Jaeger.AgentPort),
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))
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} else if len(cfg.Otel.Endpoint) != 0 {
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// Otel exporter
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log.Infof("init trace provider otel on %s/%s", cfg.Otel.Endpoint, cfg.Otel.URLPath)
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opts := []otlptracehttp.Option{
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otlptracehttp.WithEndpoint(cfg.Otel.Endpoint),
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otlptracehttp.WithURLPath(cfg.Otel.URLPath),
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otlptracehttp.WithTimeout(time.Duration(cfg.Otel.Timeout) * time.Second),
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}
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if cfg.Otel.Compression {
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opts = append(opts, otlptracehttp.WithCompression(otlptracehttp.GzipCompression))
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}
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if cfg.Otel.Insecure {
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opts = append(opts, otlptracehttp.WithInsecure())
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}
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exp, err = otlptracehttp.New(ctx, opts...)
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} else {
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log.Fatalf("Trace is enabled but no tracer provider is specified")
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}
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return exp, err
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}
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func initProvider(exp tracesdk.SpanExporter) *tracesdk.TracerProvider {
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cfg := GetGlobalConfig()
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// prepare attribute resources
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attriSlice := []attribute.KeyValue{
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semconv.ServiceNameKey.String(cfg.ServiceName),
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}
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if len(version.ReleaseVersion) != 0 {
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attriSlice = append(attriSlice, semconv.ServiceVersionKey.String(version.ReleaseVersion))
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}
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if cfg.Namespace != "" {
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attriSlice = append(attriSlice, semconv.ServiceNamespaceKey.String(cfg.Namespace))
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}
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if cfg.Attributes != nil {
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for i, a := range cfg.Attributes {
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attriSlice = append(attriSlice, attribute.String(i, a))
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}
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}
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// prepare tp options
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ops := make([]tracesdk.TracerProviderOption, 0, 4)
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ops = append(ops,
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// Always be sure to batch in production.
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// tracesdk.WithBatcher(exp),
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tracesdk.WithBatcher(exp),
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// Record information about this application in an Resource.
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tracesdk.WithResource(resource.NewWithAttributes(semconv.SchemaURL, attriSlice...)),
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tracesdk.WithSampler(tracesdk.TraceIDRatioBased(cfg.SampleRate)),
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)
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// init trace provider
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return tracesdk.NewTracerProvider(ops...)
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}
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// ShutdownFunc is a function to shutdown the trace provider
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type ShutdownFunc func()
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// Shutdown shutdown the trace provider
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func (s ShutdownFunc) Shutdown() {
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s()
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}
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// Init initializes the trace provider
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func InitGlobalTracer(ctx context.Context) ShutdownFunc {
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if !Enabled() {
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otel.SetTracerProvider(noop.NewTracerProvider())
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return func() {}
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}
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exp, err := initExporter(ctx)
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handleErr(err, "fail in exporter initialization")
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tp := initProvider(exp)
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otel.SetTracerProvider(tp)
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otel.SetTextMapPropagator(propagation.NewCompositeTextMapPropagator(propagation.TraceContext{}, propagation.Baggage{}))
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return func() {
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log.Infof("shutdown trace provider")
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handleErr(tp.Shutdown(ctx), "fail in tracer shutdown")
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}
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}
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func handleErr(err error, message string) {
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if err != nil {
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log.Fatalf("%s: %v", message, err)
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}
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}
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