Træfik (pronounced like traffic) is a modern HTTP reverse proxy and load balancer made to deploy microservices with ease. It supports several backends (Docker, Swarm mode, Kubernetes, Marathon, Consul, Etcd, Rancher, Amazon ECS, and a lot more) to manage its configuration automatically and dynamically.

. Overview . Features . Supported backends . Quickstart . Web UI . Test it . Documentation .

. Support . Release cycle . Contributing . Maintainers . Plumbing . Credits .

Overview

Imagine that you have deployed a bunch of microservices on your infrastructure. You probably used a service registry (like etcd or consul) and/or an orchestrator (swarm, Mesos/Marathon) to manage all these services. If you want your users to access some of your microservices from the Internet, you will have to use a reverse proxy and configure it using virtual hosts or prefix paths:

domain api.domain.com will point the microservice api in your private network
path domain.com/web will point the microservice web in your private network
domain backoffice.domain.com will point the microservices backoffice in your private network, load-balancing between your multiple instances

Microservices are often deployed in dynamic environments where services are added, removed, killed, upgraded or scaled many times a day.

Traditional reverse-proxies are not natively dynamic. You can't change their configuration and hot-reload easily.

Here enters Træfik.

Træfik can listen to your service registry/orchestrator API, and knows each time a microservice is added, removed, killed or upgraded, and can generate its configuration automatically. Routes to your services will be created instantly.

Run it and forget it!

Features

It's fast
No dependency hell, single binary made with go
Tiny official docker image
Rest API
Hot-reloading of configuration. No need to restart the process
Circuit breakers, retry
Round Robin, rebalancer load-balancers
Metrics (Rest, Prometheus, Datadog, Statsd, InfluxDB)
Clean AngularJS Web UI
Websocket, HTTP/2, GRPC ready
Access Logs (JSON, CLF)
Let's Encrypt support (Automatic HTTPS with renewal)
Proxy Protocol support
High Availability with cluster mode (beta)

Supported backends

Quickstart

You can have a quick look at Træfik in this Katacoda tutorial that shows how to load balance requests between multiple Docker containers. If you are looking for a more comprehensive and real use-case example, you can also check Play-With-Docker to see how to load balance between multiple nodes.

Here is a talk given by Emile Vauge at GopherCon 2017. You will learn Træfik basics in less than 10 minutes.

Here is a talk given by Ed Robinson at ContainerCamp UK conference. You will learn fundamental Træfik features and see some demos with Kubernetes.

Web UI

You can access the simple HTML frontend of Træfik.

Test it

The simple way: grab the latest binary from the releases page and just run it with the sample configuration file:

./traefik --configFile=traefik.toml

Use the tiny Docker image and just run it with the sample configuration file:

docker run -d -p 8080:8080 -p 80:80 -v $PWD/traefik.toml:/etc/traefik/traefik.toml traefik

From sources:

git clone https://github.com/containous/traefik

Documentation

You can find the complete documentation at https://docs.traefik.io. A collection of contributions around Træfik can be found at https://awesome.traefik.io.

Support

To get basic support, you can:

join the Træfik community Slack channel:
use Stack Overflow (using the traefik tag)

If you prefer commercial support, please contact containo.us by mail: mailto:support@containo.us.

Release cycle

Release: We try to release a new version every 2 months
- i.e.: 1.3.0, 1.4.0, 1.5.0
Release candidate: we do RC (1.x.0-rcy) before the final release (1.x.0)
- i.e.: 1.1.0-rc1 -> 1.1.0-rc2 -> 1.1.0-rc3 -> 1.1.0-rc4 -> 1.1.0
Bug-fixes: For each version we release bug fixes
- i.e.: 1.1.1, 1.1.2, 1.1.3
- those versions contain only bug-fixes
- no additional features are delivered in those versions
Each version is supported until the next one is released
- i.e.: 1.1.x will be supported until 1.2.0 is out
We use Semantic Versioning

Contributing

Please refer to contributing documentation.

Code of Conduct

Please note that this project is released with a Contributor Code of Conduct. By participating in this project you agree to abide by its terms.

Maintainers

Information about process and maintainers

Plumbing

Oxy: an awesome proxy library made by Mailgun folks
Gorilla mux: famous request router
Negroni: web middlewares made simple
Lego: the best Let's Encrypt library in go

Credits

Kudos to Peka for his awesome work on the logo . Traefik's logo licensed under the Creative Commons 3.0 Attributions license.

Traefik's logo was inspired by the gopher stickers made by Takuya Ueda (https://twitter.com/tenntenn). The original Go gopher was designed by Renee French (http://reneefrench.blogspot.com/).

License

dreadbird/traefik

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