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107 lines
5.3 KiB
Markdown
107 lines
5.3 KiB
Markdown
# OpenTelemetry-Go
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[](https://github.com/open-telemetry/opentelemetry-go/actions?query=workflow%3Aci+branch%3Amain)
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[](https://app.codecov.io/gh/open-telemetry/opentelemetry-go?branch=main)
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[](https://pkg.go.dev/go.opentelemetry.io/otel)
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[](https://goreportcard.com/report/go.opentelemetry.io/otel)
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[](https://cloud-native.slack.com/archives/C01NPAXACKT)
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OpenTelemetry-Go is the [Go](https://golang.org/) implementation of [OpenTelemetry](https://opentelemetry.io/).
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It provides a set of APIs to directly measure performance and behavior of your software and send this data to observability platforms.
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## Project Status
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**Warning**: this project is currently in a pre-GA phase. Backwards
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incompatible changes may be introduced in subsequent minor version releases as
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we work to track the evolving OpenTelemetry specification and user feedback.
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Our progress towards a GA release candidate is tracked in [this project
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board](https://github.com/orgs/open-telemetry/projects/5). This release
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candidate will follow semantic versioning and will be released with a major
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version greater than zero.
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Progress and status specific to this repository is tracked in our local
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[project boards](https://github.com/open-telemetry/opentelemetry-go/projects)
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and
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[milestones](https://github.com/open-telemetry/opentelemetry-go/milestones).
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Project versioning information and stability guarantees can be found in the
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[versioning documentation](./VERSIONING.md).
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| Signal | Status |
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| --- | --- |
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| Traces | Stable [release](https://github.com/orgs/open-telemetry/projects/5) is primary focus |
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| Metrics | Development paused [1] |
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| Logs | Frozen [2] |
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- [1]: The development of the metrics API and SDK has paused due to limited development resources, prioritization of a stable Traces release, and instability of the official overall design from the OpenTelemetry specification.
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Pull Requests for metrics related issues are not being accepted currently outside of security vulnerability mitigations.
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- [2]: The Logs signal development is halted for this project while we develop both Traces and Metrics.
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No Logs Pull Requests are currently being accepted.
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### Compatibility
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This project is tested on the following systems.
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| OS | Go Version | Architecture |
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| ------- | ---------- | ------------ |
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| Ubuntu | 1.16 | amd64 |
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| Ubuntu | 1.15 | amd64 |
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| Ubuntu | 1.16 | 386 |
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| Ubuntu | 1.15 | 386 |
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| MacOS | 1.16 | amd64 |
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| MacOS | 1.15 | amd64 |
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| Windows | 1.16 | amd64 |
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| Windows | 1.15 | amd64 |
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| Windows | 1.16 | 386 |
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| Windows | 1.15 | 386 |
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While this project should work for other systems, no compatibility guarantees
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are made for those systems currently.
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## Getting Started
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You can find a getting started guide on [opentelemetry.io](https://opentelemetry.io/docs/go/getting-started/).
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OpenTelemetry's goal is to provide a single set of APIs to capture distributed
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traces and metrics from your application and send them to an observability
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platform. This project allows you to do just that for applications written in
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Go. There are two steps to this process: instrument your application, and
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configure an exporter.
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### Instrumentation
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To start capturing distributed traces and metric events from your application
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it first needs to be instrumented. The easiest way to do this is by using an
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instrumentation library for your code. Be sure to check out [the officially
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supported instrumentation
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libraries](https://github.com/open-telemetry/opentelemetry-go-contrib/tree/main/instrumentation).
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If you need to extend the telemetry an instrumentation library provides or want
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to build your own instrumentation for your application directly you will need
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to use the
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[go.opentelemetry.io/otel/api](https://pkg.go.dev/go.opentelemetry.io/otel/api)
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package. The included [examples](./example/) are a good way to see some
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practical uses of this process.
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### Export
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Now that your application is instrumented to collect telemetry, it needs an
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export pipeline to send that telemetry to an observability platform.
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All officially supported exporters for the OpenTelemetry project are contained in the [exporters directory](./exporters).
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| Exporter | Metrics | Traces |
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| :-----------------------------------: | :-----: | :----: |
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| [Jaeger](./exporters/jaeger/) | | ✓ |
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| [OTLP](./exporters/otlp/) | ✓ | ✓ |
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| [Prometheus](./exporters/prometheus/) | ✓ | |
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| [stdout](./exporters/stdout/) | ✓ | ✓ |
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| [Zipkin](./exporters/zipkin/) | | ✓ |
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Additionally, OpenTelemetry community supported exporters can be found in the [contrib repository](https://github.com/open-telemetry/opentelemetry-go-contrib/tree/main/exporters).
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## Contributing
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See the [contributing documentation](CONTRIBUTING.md).
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