67 lines
1.8 KiB
Go
67 lines
1.8 KiB
Go
/*
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Copyright The containerd Authors.
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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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http://www.apache.org/licenses/LICENSE-2.0
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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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*/
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package tracing
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import (
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"github.com/sirupsen/logrus"
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"go.opentelemetry.io/otel/attribute"
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"go.opentelemetry.io/otel/trace"
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)
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// NewLogrusHook creates a new logrus hook
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func NewLogrusHook() *LogrusHook {
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return &LogrusHook{}
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}
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// LogrusHook is a logrus hook which adds logrus events to active spans.
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// If the span is not recording or the span context is invalid, the hook is a no-op.
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type LogrusHook struct{}
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// Levels returns the logrus levels that this hook is interested in.
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func (h *LogrusHook) Levels() []logrus.Level {
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return logrus.AllLevels
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}
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// Fire is called when a log event occurs.
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func (h *LogrusHook) Fire(entry *logrus.Entry) error {
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span := trace.SpanFromContext(entry.Context)
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if span == nil {
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return nil
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}
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if !span.SpanContext().IsValid() || !span.IsRecording() {
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return nil
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}
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span.AddEvent(
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entry.Message,
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trace.WithAttributes(logrusDataToAttrs(entry.Data)...),
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trace.WithAttributes(attribute.String("level", entry.Level.String())),
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trace.WithTimestamp(entry.Time),
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)
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return nil
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}
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func logrusDataToAttrs(data logrus.Fields) []attribute.KeyValue {
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attrs := make([]attribute.KeyValue, 0, len(data))
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for k, v := range data {
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attrs = append(attrs, any(k, v))
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}
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return attrs
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}
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