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vendor/github.com/coreos/etcd/README.md

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+# etcd
+
+[![Go Report Card](https://goreportcard.com/badge/github.com/coreos/etcd)](https://goreportcard.com/report/github.com/coreos/etcd)
+[![Build Status](https://travis-ci.org/coreos/etcd.svg?branch=master)](https://travis-ci.org/coreos/etcd)
+[![Build Status](https://semaphoreci.com/api/v1/coreos/etcd/branches/master/shields_badge.svg)](https://semaphoreci.com/coreos/etcd)
+[![Docker Repository on Quay.io](https://quay.io/repository/coreos/etcd-git/status "Docker Repository on Quay.io")](https://quay.io/repository/coreos/etcd-git)
+
+**Note**: The `master` branch may be in an *unstable or even broken state* during development. Please use [releases][github-release] instead of the `master` branch in order to get stable binaries.
+
+*the etcd v2 [documentation](Documentation/v2/README.md) has moved*
+
+![etcd Logo](logos/etcd-horizontal-color.png)
+
+etcd is a distributed, consistent key-value store for shared configuration and service discovery, with a focus on being:
+
+* *Simple*: well-defined, user-facing API (gRPC)
+* *Secure*: automatic TLS with optional client cert authentication
+* *Fast*: benchmarked 10,000 writes/sec
+* *Reliable*: properly distributed using Raft
+
+etcd is written in Go and uses the [Raft][raft] consensus algorithm to manage a highly-available replicated log.
+
+etcd is used [in production by many companies](./Documentation/production-users.md), and the development team stands behind it in critical deployment scenarios, where etcd is frequently teamed with applications such as [Kubernetes][k8s], [fleet][fleet], [locksmith][locksmith], [vulcand][vulcand], [Doorman][doorman], and many others. Reliability is further ensured by rigorous [testing][etcd-tests].
+
+See [etcdctl][etcdctl] for a simple command line client.
+
+[raft]: https://raft.github.io/
+[k8s]: http://kubernetes.io/
+[doorman]: https://github.com/youtube/doorman
+[fleet]: https://github.com/coreos/fleet
+[locksmith]: https://github.com/coreos/locksmith
+[vulcand]: https://github.com/vulcand/vulcand
+[etcdctl]: https://github.com/coreos/etcd/tree/master/etcdctl
+[etcd-tests]: http://dash.etcd.io
+
+## Getting started
+
+### Getting etcd
+
+The easiest way to get etcd is to use one of the pre-built release binaries which are available for OSX, Linux, Windows, [rkt][rkt], and Docker. Instructions for using these binaries are on the [GitHub releases page][github-release].
+
+For those wanting to try the very latest version, you can [build the latest version of etcd][dl-build] from the `master` branch.
+You will first need [*Go*](https://golang.org/) installed on your machine (version 1.7+ is required).
+All development occurs on `master`, including new features and bug fixes.
+Bug fixes are first targeted at `master` and subsequently ported to release branches, as described in the [branch management][branch-management] guide.
+
+[rkt]: https://github.com/coreos/rkt/releases/
+[github-release]: https://github.com/coreos/etcd/releases/
+[branch-management]: ./Documentation/branch_management.md
+[dl-build]: ./Documentation/dl_build.md#build-the-latest-version
+
+### Running etcd
+
+First start a single-member cluster of etcd:
+
+```sh
+./bin/etcd
+```
+
+This will bring up etcd listening on port 2379 for client communication and on port 2380 for server-to-server communication.
+
+Next, let's set a single key, and then retrieve it:
+
+```
+ETCDCTL_API=3 etcdctl put mykey "this is awesome"
+ETCDCTL_API=3 etcdctl get mykey
+```
+
+That's it! etcd is now running and serving client requests. For more
+
+- [Animated quick demo][demo-gif]
+- [Interactive etcd playground][etcd-play]
+
+[demo-gif]: ./Documentation/demo.md
+[etcd-play]: http://play.etcd.io/
+
+### etcd TCP ports
+
+The [official etcd ports][iana-ports] are 2379 for client requests, and 2380 for peer communication. 
+
+[iana-ports]: https://www.iana.org/assignments/service-names-port-numbers/service-names-port-numbers.xhtml?search=etcd
+
+### Running a local etcd cluster
+
+First install [goreman](https://github.com/mattn/goreman), which manages Procfile-based applications.
+
+Our [Procfile script](./Procfile) will set up a local example cluster. Start it with:
+
+```sh
+goreman start
+```
+
+This will bring up 3 etcd members `infra1`, `infra2` and `infra3` and etcd proxy `proxy`, which runs locally and composes a cluster.
+
+Every cluster member and proxy accepts key value reads and key value writes.
+
+### Running etcd on Kubernetes
+
+If you want to run etcd cluster on Kubernetes, try [etcd operator](https://github.com/coreos/etcd-operator).
+
+### Next steps
+
+Now it's time to dig into the full etcd API and other guides.
+
+- Read the full [documentation][fulldoc].
+- Explore the full gRPC [API][api].
+- Set up a [multi-machine cluster][clustering].
+- Learn the [config format, env variables and flags][configuration].
+- Find [language bindings and tools][libraries-and-tools].
+- Use TLS to [secure an etcd cluster][security].
+- [Tune etcd][tuning].
+
+[fulldoc]: ./Documentation/docs.md
+[api]: ./Documentation/dev-guide/api_reference_v3.md
+[clustering]: ./Documentation/op-guide/clustering.md
+[configuration]: ./Documentation/op-guide/configuration.md
+[libraries-and-tools]: ./Documentation/libraries-and-tools.md
+[security]: ./Documentation/op-guide/security.md
+[tuning]: ./Documentation/tuning.md
+
+## Contact
+
+- Mailing list: [etcd-dev](https://groups.google.com/forum/?hl=en#!forum/etcd-dev)
+- IRC: #[etcd](irc://irc.freenode.org:6667/#etcd) on freenode.org
+- Planning/Roadmap: [milestones](https://github.com/coreos/etcd/milestones), [roadmap](./ROADMAP.md)
+- Bugs: [issues](https://github.com/coreos/etcd/issues)
+
+## Contributing
+
+See [CONTRIBUTING](CONTRIBUTING.md) for details on submitting patches and the contribution workflow.
+
+## Reporting bugs
+
+See [reporting bugs](Documentation/reporting_bugs.md) for details about reporting any issue you may encounter.
+
+### License
+
+etcd is under the Apache 2.0 license. See the [LICENSE](LICENSE) file for details.
+
+