/
observability.go
45 lines (41 loc) · 1.19 KB
/
observability.go
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// Copyright 2020 Anapaya Systems
//
// 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 main
import (
"github.com/opentracing/opentracing-go"
"github.com/scionproto/scion/pkg/log"
"github.com/scionproto/scion/private/env"
)
func setupTracer(componentName, agent string) (func(), error) {
if len(agent) == 0 {
return func() {}, nil
}
cfg := &env.Tracing{
Enabled: true,
Debug: true,
Agent: agent,
}
cfg.InitDefaults()
tr, closer, err := cfg.NewTracer(componentName)
if err != nil {
return nil, err
}
opentracing.SetGlobalTracer(tr)
closeTracer := func() {
if err := closer.Close(); err != nil {
log.Error("Unable to close tracer", "err", err)
}
}
return closeTracer, nil
}