mirror of
https://github.com/open-telemetry/opentelemetry-go.git
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d0e4a438ef
* Handle empty env vars as it they were not set * Add changelog entry * Add missing unit test
32 lines
1003 B
Go
32 lines
1003 B
Go
// Copyright The OpenTelemetry 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 zipkin // import "go.opentelemetry.io/otel/exporters/zipkin"
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import "os"
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// Environment variable names.
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const (
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// Endpoint for Zipkin collector.
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envEndpoint = "OTEL_EXPORTER_ZIPKIN_ENDPOINT"
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)
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// envOr returns an env variable's value if it is exists or the default if not.
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func envOr(key, defaultValue string) string {
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if v := os.Getenv(key); v != "" {
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return v
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}
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return defaultValue
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}
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