2019-08-05 22:58:24 +02:00
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# OpenTelemetry-Go
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2021-02-04 21:13:25 +02:00
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[![CI](https://github.com/open-telemetry/opentelemetry-go/workflows/ci/badge.svg)](https://github.com/open-telemetry/opentelemetry-go/actions?query=workflow%3Aci+branch%3Amain)
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2021-05-24 18:27:43 +02:00
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[![codecov.io](https://codecov.io/gh/open-telemetry/opentelemetry-go/coverage.svg?branch=main)](https://app.codecov.io/gh/open-telemetry/opentelemetry-go?branch=main)
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2020-11-12 17:33:04 +02:00
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[![PkgGoDev](https://pkg.go.dev/badge/go.opentelemetry.io/otel)](https://pkg.go.dev/go.opentelemetry.io/otel)
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2019-11-01 20:40:29 +02:00
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[![Go Report Card](https://goreportcard.com/badge/go.opentelemetry.io/otel)](https://goreportcard.com/report/go.opentelemetry.io/otel)
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2021-02-22 18:38:12 +02:00
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[![Slack](https://img.shields.io/badge/slack-@cncf/otel--go-brightgreen.svg?logo=slack)](https://cloud-native.slack.com/archives/C01NPAXACKT)
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2021-05-03 20:42:32 +02:00
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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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2019-06-14 20:37:05 +02:00
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2020-10-29 18:23:13 +02:00
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## Project Status
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2021-09-20 22:02:46 +02:00
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| Signal | Status | Project |
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| ------- | ---------- | ------- |
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| Traces | Stable | N/A |
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| Metrics | Alpha | N/A |
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| Logs | Frozen [1] | N/A |
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2020-10-29 18:23:13 +02:00
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2021-09-20 22:02:46 +02:00
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- [1]: The Logs signal development is halted for this project while we develop both Traces and Metrics.
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2021-06-18 17:55:09 +02:00
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No Logs Pull Requests are currently being accepted.
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2020-10-29 18:23:13 +02:00
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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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2020-12-29 20:34:46 +02:00
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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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2021-03-01 18:38:23 +02:00
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### Compatibility
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2022-08-10 17:57:01 +02:00
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OpenTelemetry-Go ensures compatibility with the current supported versions of
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the [Go language](https://golang.org/doc/devel/release#policy):
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2021-11-22 18:09:42 +02:00
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2022-08-10 17:57:01 +02:00
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> Each major Go release is supported until there are two newer major releases.
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> For example, Go 1.5 was supported until the Go 1.7 release, and Go 1.6 was supported until the Go 1.8 release.
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2021-11-22 18:09:42 +02:00
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2022-08-10 17:57:01 +02:00
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For versions of Go that are no longer supported upstream, opentelemetry-go will
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stop ensuring compatibility with these versions in the following manner:
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- A minor release of opentelemetry-go will be made to add support for the new
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supported release of Go.
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- The following minor release of opentelemetry-go will remove compatibility
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testing for the oldest (now archived upstream) version of Go. This, and
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future, releases of opentelemetry-go may include features only supported by
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the currently supported versions of Go.
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Currently, this project supports the following environments.
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2021-03-01 18:38:23 +02:00
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| OS | Go Version | Architecture |
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| ------- | ---------- | ------------ |
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| Ubuntu | 1.19 | amd64 |
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2022-03-18 18:36:16 +02:00
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| Ubuntu | 1.18 | amd64 |
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2021-10-05 19:42:29 +02:00
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| Ubuntu | 1.17 | amd64 |
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2022-08-10 17:45:14 +02:00
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| Ubuntu | 1.19 | 386 |
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| Ubuntu | 1.18 | 386 |
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| Ubuntu | 1.17 | 386 |
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2022-08-10 17:45:14 +02:00
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| MacOS | 1.19 | amd64 |
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2022-03-18 18:36:16 +02:00
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| MacOS | 1.18 | amd64 |
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2021-10-05 19:42:29 +02:00
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| MacOS | 1.17 | amd64 |
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2022-08-10 17:45:14 +02:00
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| Windows | 1.19 | amd64 |
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2022-03-18 18:36:16 +02:00
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| Windows | 1.18 | amd64 |
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2021-10-05 19:42:29 +02:00
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| Windows | 1.17 | amd64 |
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2022-08-10 17:45:14 +02:00
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| Windows | 1.19 | 386 |
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2022-03-18 18:36:16 +02:00
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| Windows | 1.18 | 386 |
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2021-10-05 19:42:29 +02:00
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| Windows | 1.17 | 386 |
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2021-03-01 18:38:23 +02:00
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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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2020-08-27 21:14:37 +02:00
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## Getting Started
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2019-10-02 07:43:06 +02:00
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2020-12-17 20:00:34 +02:00
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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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2020-08-27 21:14:37 +02:00
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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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2019-10-02 07:43:06 +02:00
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2020-08-27 21:14:37 +02:00
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### Instrumentation
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2020-08-27 21:14:37 +02:00
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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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2019-10-02 07:43:06 +02:00
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2020-08-27 21:14:37 +02:00
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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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2022-03-25 19:49:48 +02:00
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[Go otel](https://pkg.go.dev/go.opentelemetry.io/otel)
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2020-08-27 21:14:37 +02:00
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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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2020-03-12 18:52:12 +02:00
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2020-08-27 21:14:37 +02:00
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### Export
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2019-10-02 07:43:06 +02:00
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2020-08-27 21:14:37 +02:00
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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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2019-10-02 07:43:06 +02:00
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2021-06-12 20:39:22 +02:00
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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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2019-10-01 18:16:45 +02:00
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## Contributing
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2020-08-27 21:14:37 +02:00
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See the [contributing documentation](CONTRIBUTING.md).
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