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observabilityzap.go
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observabilityzap.go
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// Copyright 2020-2023 Buf Technologies, Inc.
//
// Licensed 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 observabilityzap
import (
"go.opentelemetry.io/otel"
"go.opentelemetry.io/otel/propagation"
"go.opentelemetry.io/otel/sdk/trace"
"go.uber.org/zap"
)
// Start creates a Zap logging exporter for Opentelemetry traces and returns
// the exporter. The exporter implements io.Closer for clean-up.
func Start(logger *zap.Logger) *tracerProviderCloser {
exporter := newZapExporter(logger)
tracerProviderOptions := []trace.TracerProviderOption{
trace.WithSampler(trace.AlwaysSample()),
trace.WithSpanProcessor(trace.NewBatchSpanProcessor(exporter)),
}
tracerProvider := newTracerProviderCloser(trace.NewTracerProvider(tracerProviderOptions...))
otel.SetTracerProvider(tracerProvider)
otel.SetTextMapPropagator(propagation.TraceContext{})
return tracerProvider
}