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opentelemetry-go/exporters/jaeger/env.go
Robert Pająk d0e4a438ef
Handle empty env vars as it they were not set (#3764)
* Handle empty env vars as it they were not set

* Add changelog entry

* Add missing unit test
2023-02-28 12:43:48 -08:00

45 lines
1.6 KiB
Go

// Copyright The OpenTelemetry Authors
//
// 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 jaeger // import "go.opentelemetry.io/otel/exporters/jaeger"
import (
"os"
)
// Environment variable names.
const (
// Hostname for the Jaeger agent, part of address where exporter sends spans
// i.e. "localhost".
envAgentHost = "OTEL_EXPORTER_JAEGER_AGENT_HOST"
// Port for the Jaeger agent, part of address where exporter sends spans
// i.e. 6831.
envAgentPort = "OTEL_EXPORTER_JAEGER_AGENT_PORT"
// The HTTP endpoint for sending spans directly to a collector,
// i.e. http://jaeger-collector:14268/api/traces.
envEndpoint = "OTEL_EXPORTER_JAEGER_ENDPOINT"
// Username to send as part of "Basic" authentication to the collector endpoint.
envUser = "OTEL_EXPORTER_JAEGER_USER"
// Password to send as part of "Basic" authentication to the collector endpoint.
envPassword = "OTEL_EXPORTER_JAEGER_PASSWORD"
)
// envOr returns an env variable's value if it is exists or the default if not.
func envOr(key, defaultValue string) string {
if v := os.Getenv(key); v != "" {
return v
}
return defaultValue
}