2015-09-14 11:41:50 +02:00

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Træfɪk is a modern HTTP reverse proxy and load balancer made to deploy microservices with ease. It supports several backends (Docker, Mesos/Marathon, Consul, Etcd, Rest API, file...) to manage its configuration automatically and dynamically (hot-reload).

Features

No dependency hell, single binary made with go
Simple json Rest API
Simple TOML file configuration
Multiple backends supported: Docker, Mesos/Marathon, Consul, Etcd, and more to come
Watchers for backends, can listen change in backends to apply a new configuration automatically
Hot-reloading of configuration. No need to restart the process
Graceful shutdown http connections during hot-reloads
Rest Metrics
Tiny docker image included
SSL backends support
SSL frontend support

Plumbing

Oxy: an awsome proxy library made by Mailgun guys
Gorilla mux: famous request router
Negroni: web middlewares made simple
Graceful: graceful shutdown of http.Handler servers

Quick start

The simple way: go to the releases page and get a binary.
Or simply execute:

go get github.com/emilevauge/traefik

Just run it!

./traefik traefik.toml

Configuration

Global configuration

# traefik.toml
port = ":80"
graceTimeOut = 10
logLevel = "DEBUG"
traefikLogsStdout = true
# traefikLogsFile = "log/traefik.log"
# accessLogsFile = "log/access.log"
# CertFile = "traefik.crt"
# KeyFile = "traefik.key"

File backend

Like any other reverse proxy, Træfɪk can be configured with a file. You have two choices:

simply add your configuration at the end of the global configuration file traefik.tml :

# traefik.toml
port = ":80"
graceTimeOut = 10
logLevel = "DEBUG"
traefikLogsStdout = true
# traefikLogsFile = "log/traefik.log"
# accessLogsFile = "log/access.log"
# CertFile = "traefik.crt"
# KeyFile = "traefik.key"

[file]

[backends]
  [backends.backend1]
    [backends.backend1.servers.server1]
    url = "http://172.17.0.2:80"
    weight = 10
    [backends.backend1.servers.server2]
    url = "http://172.17.0.3:80"
    weight = 1
  [backends.backend2]
    [backends.backend2.servers.server1]
    url = "http://172.17.0.4:80"
    weight = 1

[routes]
  [routes.route1]
  backend = "backend2"
    [routes.route1.rules.test1]
    category = "Host"
    value = "test.localhost"
  [routes.route2]
  backend = "backend1"
    [routes.route2.rules.test2]
    category = "Path"
    value = "/test"

or put your configuration in a separate file, for example rules.tml:

# traefik.toml
port = ":80"
graceTimeOut = 10
logLevel = "DEBUG"
traefikLogsStdout = true
# traefikLogsFile = "log/traefik.log"
# accessLogsFile = "log/access.log"
# CertFile = "traefik.crt"
# KeyFile = "traefik.key"

[file]
filename = "rules.toml"

# rules.toml
[backends]
  [backends.backend1]
    [backends.backend1.servers.server1]
    url = "http://172.17.0.2:80"
    weight = 10
    [backends.backend1.servers.server2]
    url = "http://172.17.0.3:80"
    weight = 1
  [backends.backend2]
    [backends.backend2.servers.server1]
    url = "http://172.17.0.4:80"
    weight = 1

[routes]
  [routes.route1]
  backend = "backend2"
    [routes.route1.rules.test1]
    category = "Host"
    value = "test.localhost"
  [routes.route2]
  backend = "backend1"
    [routes.route2.rules.test2]
    category = "Path"
    value = "/test"

If you want Træfɪk to watch file changes automatically, just add:

[file]
watch = true

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