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51 lines
2.9 KiB
Markdown
51 lines
2.9 KiB
Markdown
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# OpenTelemetry-Go Jaeger Exporter
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[](https://pkg.go.dev/go.opentelemetry.io/otel/exporters/jaeger)
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[OpenTelemetry span exporter for Jaeger](https://github.com/open-telemetry/opentelemetry-specification/blob/main/specification/trace/sdk_exporters/jaeger.md) implementation.
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## Installation
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```
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go get -u go.opentelemetry.io/otel/exporters/jaeger
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```
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## Example
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See [../../example/jaeger](../../example/jaeger).
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## Configuration
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The exporter can be used to send spans to:
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- Jaeger agent using `jaeger.thrift` over compact thrift protocol via
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[`WithAgentEndpoint`](https://pkg.go.dev/go.opentelemetry.io/otel/exporters/jaeger#WithAgentEndpoint) option.
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- Jaeger collector using `jaeger.thrift` over HTTP via
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[`WithCollectorEndpoint`](https://pkg.go.dev/go.opentelemetry.io/otel/exporters/jaeger#WithCollectorEndpoint) option.
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### Environment Variables
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The following environment variables can be used
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(instead of options objects) to override the default configuration.
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| Environment variable | Option | Default value |
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| --------------------------------- | --------------------------------------------------------------------------------------------- | ----------------------------------- |
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| `OTEL_EXPORTER_JAEGER_AGENT_HOST` | [`WithAgentHost`](https://pkg.go.dev/go.opentelemetry.io/otel/exporters/jaeger#WithAgentHost) | `localhost` |
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| `OTEL_EXPORTER_JAEGER_AGENT_PORT` | [`WithAgentPort`](https://pkg.go.dev/go.opentelemetry.io/otel/exporters/jaeger#WithAgentPort) | `6831` |
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| `OTEL_EXPORTER_JAEGER_ENDPOINT` | [`WithEndpoint`](https://pkg.go.dev/go.opentelemetry.io/otel/exporters/jaeger#WithEndpoint) | `http://localhost:14268/api/traces` |
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| `OTEL_EXPORTER_JAEGER_USER` | [`WithUsername`](https://pkg.go.dev/go.opentelemetry.io/otel/exporters/jaeger#WithUsername) | |
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| `OTEL_EXPORTER_JAEGER_PASSWORD` | [`WithPassword`](https://pkg.go.dev/go.opentelemetry.io/otel/exporters/jaeger#WithPassword) | |
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Configuration using options have precedence over the environment variables.
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## Contributing
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This exporter uses a vendored copy of the Apache Thrift library (v0.14.1) at a custom import path.
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When re-generating Thrift code in the future, please adapt import paths as necessary.
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## References
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- [Jaeger](https://www.jaegertracing.io/)
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- [OpenTelemetry to Jaeger Transformation](https://github.com/open-telemetry/opentelemetry-specification/blob/main/specification/trace/sdk_exporters/jaeger.md)
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- [OpenTelemetry Environment Variable Specification](https://github.com/open-telemetry/opentelemetry-specification/blob/main/specification/sdk-environment-variables.md)
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