gotosocial/vendor/go.opentelemetry.io/otel/exporters/jaeger/README.md

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2023-05-09 17:19:48 +00:00
# OpenTelemetry-Go Jaeger Exporter
[![Go Reference](https://pkg.go.dev/badge/go.opentelemetry.io/otel/exporters/jaeger.svg)](https://pkg.go.dev/go.opentelemetry.io/otel/exporters/jaeger)
[OpenTelemetry span exporter for Jaeger](https://github.com/open-telemetry/opentelemetry-specification/blob/v1.20.0/specification/trace/sdk_exporters/jaeger.md) implementation.
2023-05-09 17:19:48 +00:00
## Installation
```
go get -u go.opentelemetry.io/otel/exporters/jaeger
```
## Example
See [../../example/jaeger](../../example/jaeger).
## Configuration
The exporter can be used to send spans to:
- Jaeger agent using `jaeger.thrift` over compact thrift protocol via
[`WithAgentEndpoint`](https://pkg.go.dev/go.opentelemetry.io/otel/exporters/jaeger#WithAgentEndpoint) option.
- Jaeger collector using `jaeger.thrift` over HTTP via
[`WithCollectorEndpoint`](https://pkg.go.dev/go.opentelemetry.io/otel/exporters/jaeger#WithCollectorEndpoint) option.
### Environment Variables
The following environment variables can be used
(instead of options objects) to override the default configuration.
| Environment variable | Option | Default value |
| --------------------------------- | --------------------------------------------------------------------------------------------- | ----------------------------------- |
| `OTEL_EXPORTER_JAEGER_AGENT_HOST` | [`WithAgentHost`](https://pkg.go.dev/go.opentelemetry.io/otel/exporters/jaeger#WithAgentHost) | `localhost` |
| `OTEL_EXPORTER_JAEGER_AGENT_PORT` | [`WithAgentPort`](https://pkg.go.dev/go.opentelemetry.io/otel/exporters/jaeger#WithAgentPort) | `6831` |
| `OTEL_EXPORTER_JAEGER_ENDPOINT` | [`WithEndpoint`](https://pkg.go.dev/go.opentelemetry.io/otel/exporters/jaeger#WithEndpoint) | `http://localhost:14268/api/traces` |
| `OTEL_EXPORTER_JAEGER_USER` | [`WithUsername`](https://pkg.go.dev/go.opentelemetry.io/otel/exporters/jaeger#WithUsername) | |
| `OTEL_EXPORTER_JAEGER_PASSWORD` | [`WithPassword`](https://pkg.go.dev/go.opentelemetry.io/otel/exporters/jaeger#WithPassword) | |
Configuration using options have precedence over the environment variables.
## Contributing
This exporter uses a vendored copy of the Apache Thrift library (v0.14.1) at a custom import path.
When re-generating Thrift code in the future, please adapt import paths as necessary.
## References
- [Jaeger](https://www.jaegertracing.io/)
- [OpenTelemetry to Jaeger Transformation](https://github.com/open-telemetry/opentelemetry-specification/blob/v1.20.0/specification/trace/sdk_exporters/jaeger.md)
- [OpenTelemetry Environment Variable Specification](https://github.com/open-telemetry/opentelemetry-specification/blob/v1.20.0/specification/sdk-environment-variables.md#jaeger-exporter)