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cli: add otel sdk tracing and metric providers to the core cli This adds the code used by buildx and compose into the default CLI program to help normalize the usage of these APIs and allow code reuse between projects. It also allows these projects to benefit from improvements or changes that may be made by another team. At the moment, these APIs are a pretty thin layer on the OTEL SDK. It configures an additional exporter to a docker endpoint that's used for usage collection and is only active if the option is configured in docker desktop. This also upgrades the OTEL version to v1.19 which is the one being used by buildkit, buildx, compose, etc. Signed-off-by: Jonathan A. Sternberg <jonathan.sternberg@docker.com>
2024-02-20 10:42:33 -05:00
# Exponential Backoff [![GoDoc][godoc image]][godoc] [![Build Status][travis image]][travis] [![Coverage Status][coveralls image]][coveralls]
This is a Go port of the exponential backoff algorithm from [Google's HTTP Client Library for Java][google-http-java-client].
[Exponential backoff][exponential backoff wiki]
is an algorithm that uses feedback to multiplicatively decrease the rate of some process,
in order to gradually find an acceptable rate.
The retries exponentially increase and stop increasing when a certain threshold is met.
## Usage
Import path is `github.com/cenkalti/backoff/v4`. Please note the version part at the end.
Use https://pkg.go.dev/github.com/cenkalti/backoff/v4 to view the documentation.
## Contributing
* I would like to keep this library as small as possible.
* Please don't send a PR without opening an issue and discussing it first.
* If proposed change is not a common use case, I will probably not accept it.
[godoc]: https://pkg.go.dev/github.com/cenkalti/backoff/v4
[godoc image]: https://godoc.org/github.com/cenkalti/backoff?status.png
[travis]: https://travis-ci.org/cenkalti/backoff
[travis image]: https://travis-ci.org/cenkalti/backoff.png?branch=master
[coveralls]: https://coveralls.io/github/cenkalti/backoff?branch=master
[coveralls image]: https://coveralls.io/repos/github/cenkalti/backoff/badge.svg?branch=master
[google-http-java-client]: https://github.com/google/google-http-java-client/blob/da1aa993e90285ec18579f1553339b00e19b3ab5/google-http-client/src/main/java/com/google/api/client/util/ExponentialBackOff.java
[exponential backoff wiki]: http://en.wikipedia.org/wiki/Exponential_backoff
[advanced example]: https://pkg.go.dev/github.com/cenkalti/backoff/v4?tab=doc#pkg-examples