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Migration Guide: From v1 to v2¶

How to Migrate from Traefik v1 to Traefik v2.

The version 2 of Traefik introduces a number of breaking changes, which require one to update their configuration when they migrate from v1 to v2. The goal of this page is to recapitulate all of these changes, and in particular to give examples, feature by feature, of how the configuration looked like in v1, and how it now looks like in v2.

Migration Helper

We created a tool to help during the migration: traefik-migration-tool

This tool allows to:

convert Ingress to Traefik IngressRoute resources.
convert acme.json file from v1 to v2 format.
migrate the static configuration contained in the file traefik.toml to a Traefik v2 file.

Frontends and Backends Are Dead...
... Long Live Routers, Middlewares, and Services¶

During the transition from v1 to v2, a number of internal pieces and components of Traefik were rewritten and reorganized. As such, the combination of core notions such as frontends and backends has been replaced with the combination of routers, services, and middlewares.

Typically, a router replaces a frontend, and a service assumes the role of a backend, with each router referring to a service. However, even though a backend was in charge of applying any desired modification on the fly to the incoming request, the router defers that responsibility to another component. Instead, a dedicated middleware is now defined for each kind of such modification. Then any router can refer to an instance of the wanted middleware.

One frontend with basic auth and one backend, become one router, one service, and one basic auth middleware.

v1

Docker

labels:
  - "traefik.frontend.rule=Host:test.localhost;PathPrefix:/test"
  - "traefik.frontend.auth.basic.users=test:$$apr1$$H6uskkkW$$IgXLP6ewTrSuBkTrqE8wj/,test2:$$apr1$$d9hr9HBB$$4HxwgUir3HP4EsggP/QNo0"

K8s Ingress

apiVersion: networking.k8s.io/v1beta1
kind: Ingress
metadata:
  name: traefik
  namespace: kube-system
  annotations:
    kubernetes.io/ingress.class: traefik
    traefik.ingress.kubernetes.io/rule-type: PathPrefix
spec:
  rules:
  - host: test.localhost
    http:
      paths:
      - path: /test
        backend:
          serviceName: server0
          servicePort: 80
      - path: /test
        backend:
          serviceName: server1
          servicePort: 80

File (TOML)

[frontends]
  [frontends.frontend1]
    entryPoints = ["http"]
    backend = "backend1"

    [frontends.frontend1.routes]
      [frontends.frontend1.routes.route0]
        rule = "Host:test.localhost"
      [frontends.frontend1.routes.route0]
        rule = "PathPrefix:/test"

    [frontends.frontend1.auth]
      [frontends.frontend1.auth.basic]
        users = [
          "test:$apr1$H6uskkkW$IgXLP6ewTrSuBkTrqE8wj/",
          "test2:$apr1$d9hr9HBB$4HxwgUir3HP4EsggP/QNo0",
        ]

[backends]
  [backends.backend1]
    [backends.backend1.servers.server0]
      url = "http://10.10.10.1:80"
    [backends.backend1.servers.server1]
      url = "http://10.10.10.2:80"

    [backends.backend1.loadBalancer]
      method = "wrr"

v2

Docker

labels:
  - "traefik.http.routers.router0.rule=Host(`test.localhost`) && PathPrefix(`/test`)"
  - "traefik.http.routers.router0.middlewares=auth"
  - "traefik.http.middlewares.auth.basicauth.users=test:$$apr1$$H6uskkkW$$IgXLP6ewTrSuBkTrqE8wj/,test2:$$apr1$$d9hr9HBB$$4HxwgUir3HP4EsggP/QNo0"

K8s IngressRoute

# The definitions below require the definitions for the Middleware and IngressRoute kinds.
# https://doc.traefik.io/traefik/v2.2/reference/dynamic-configuration/kubernetes-crd/#definitions
apiVersion: traefik.containo.us/v1alpha1
kind: Middleware
metadata:
  name: basicauth
  namespace: foo

spec:
  basicAuth:
    users:
      - test:$apr1$H6uskkkW$IgXLP6ewTrSuBkTrqE8wj/
      - test2:$apr1$d9hr9HBB$4HxwgUir3HP4EsggP/QNo0

---
apiVersion: traefik.containo.us/v1alpha1
kind: IngressRoute
metadata:
  name: ingressroutebar

spec:
  entryPoints:
    - http
  routes:
  - match: Host(`test.localhost`) && PathPrefix(`/test`)
    kind: Rule
    services:
    - name: server0
      port: 80
    - name: server1
      port: 80
    middlewares:
    - name: basicauth
      namespace: foo

File (TOML)

[http.routers]
  [http.routers.router0]
    rule = "Host(`test.localhost`) && PathPrefix(`/test`)"
    middlewares = ["auth"]
    service = "my-service"

[http.services]
  [[http.services.my-service.loadBalancer.servers]]
    url = "http://10.10.10.1:80"
  [[http.services.my-service.loadBalancer.servers]]
    url = "http://10.10.10.2:80"

[http.middlewares]
  [http.middlewares.auth.basicAuth]
    users = [
      "test:$apr1$H6uskkkW$IgXLP6ewTrSuBkTrqE8wj/",
      "test2:$apr1$d9hr9HBB$4HxwgUir3HP4EsggP/QNo0",
    ]

File (YAML)

http:
  routers:
    router0:
      rule: "Host(`test.localhost`) && PathPrefix(`/test`)"
      service: my-service
      middlewares:
        - auth

  services:
    my-service:
      loadBalancer:
        servers:
          - url: http://10.10.10.1:80
          - url: http://10.10.10.2:80

  middlewares:
    auth:
      basicAuth:
        users:
          - "test:$apr1$H6uskkkW$IgXLP6ewTrSuBkTrqE8wj/"
          - "test2:$apr1$d9hr9HBB$4HxwgUir3HP4EsggP/QNo0"

TLS Configuration is Now Dynamic, per Router.¶

TLS parameters used to be specified in the static configuration, as an entryPoint field. With Traefik v2, a new dynamic TLS section at the root contains all the desired TLS configurations. Then, a router's TLS field can refer to one of the TLS configurations defined at the root, hence defining the TLS configuration for that router.

TLS on websecure entryPoint becomes TLS option on Router-1

v1

File (TOML)

# static configuration
[entryPoints]
  [entryPoints.websecure]
    address = ":443"

    [entryPoints.websecure.tls]
      minVersion = "VersionTLS12"
      cipherSuites = [
        "TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256",
        "TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384",
        "TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256",
        "TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256",
        "TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256",
        "TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256",
      ]
      [[entryPoints.websecure.tls.certificates]]
        certFile = "path/to/my.cert"
        keyFile = "path/to/my.key"

CLI

--entryPoints='Name:websecure Address::443 TLS:path/to/my.cert,path/to/my.key TLS.MinVersion:VersionTLS12 TLS.CipherSuites:TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256,TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256,TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256'

v2

File (TOML)

# dynamic configuration
[http.routers]
  [http.routers.Router-1]
    rule = "Host(`example.com`)"
    service = "service-id"
    # will terminate the TLS request
    [http.routers.Router-1.tls]
      options = "myTLSOptions"

[[tls.certificates]]
  certFile = "/path/to/domain.cert"
  keyFile = "/path/to/domain.key"

[tls.options]
  [tls.options.myTLSOptions]
    minVersion = "VersionTLS12"
    cipherSuites = [
      "TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256",
      "TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384",
      "TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256",
      "TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256",
      "TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256",
      "TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256",
    ]

File (YAML)

http:
  routers:
    Router-1:
      rule: "Host(`example.com`)"
      service: service-id
      # will terminate the TLS request
      tls:
        options: myTLSOptions

tls:
  certificates:
    - certFile: /path/to/domain.cert
      keyFile: /path/to/domain.key
  options:
    myTLSOptions:
      minVersion: VersionTLS12
      cipherSuites:
        - TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384
        - TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256
        - TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256
        - TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256
        - TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256

K8s IngressRoute

# The definitions below require the definitions for the TLSOption and IngressRoute kinds.
# https://doc.traefik.io/traefik/v2.2/reference/dynamic-configuration/kubernetes-crd/#definitions
apiVersion: traefik.containo.us/v1alpha1
kind: TLSOption
metadata:
  name: mytlsoption
  namespace: default

spec:
  minVersion: VersionTLS12
  cipherSuites:
    - TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384
    - TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256
    - TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256
    - TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256
    - TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256

---
apiVersion: traefik.containo.us/v1alpha1
kind: IngressRoute
metadata:
  name: ingressroutebar

spec:
  entryPoints:
    - web
  routes:
    - match: Host(`example.com`)
      kind: Rule
      services:
        - name: whoami
          port: 80
  tls:
    options:
      name: mytlsoption
      namespace: default

Docker

labels:
  # myTLSOptions must be defined by another provider, in this instance in the File Provider.
  # see the cross provider section
  - "traefik.http.routers.router0.tls.options=myTLSOptions@file"

HTTP to HTTPS Redirection is Now Configured on Routers¶

Previously on Traefik v1, the redirection was applied on an entry point or on a frontend. With Traefik v2 it is applied on an entry point or a Router.

To apply a redirection:

on an entry point, the HTTP redirection has to be configured.
on a router, one of the redirect middlewares, RedirectRegex or RedirectScheme, has to be configured and added to the router middlewares list.

Global HTTP to HTTPS redirection

v1

File (TOML)

# static configuration
defaultEntryPoints = ["web", "websecure"]

[entryPoints]
  [entryPoints.web]
    address = ":80"
    [entryPoints.web.redirect]
      entryPoint = "websecure"

  [entryPoints.websecure]
    address = ":443"
    [entryPoints.websecure.tls]

CLI

--entrypoints=Name:web Address::80 Redirect.EntryPoint:websecure
--entryPoints='Name:websecure Address::443 TLS'

v2

CLI

## static configuration

--entrypoints.web.address=:80
--entrypoints.web.http.redirections.entrypoint.to=websecure
--entrypoints.web.http.redirections.entrypoint.scheme=https
--entrypoints.websecure.address=:443
--providers.docker=true

File (TOML)

# traefik.toml
## static configuration

[entryPoints.web]
  address = ":80"
  [entryPoints.web.http.redirections.entryPoint]
    to = "websecure"
    scheme = "https"

[entryPoints.websecure]
  address = ":443"

File (YAML)

# traefik.yaml
## static configuration

entryPoints:
  web:
    address: 80
    http:
      redirections:
        entrypoint:
          to: websecure
          scheme: https

  websecure:
    address: 443

HTTP to HTTPS redirection per domain

v1

File (TOML)

[entryPoints]
  [entryPoints.web]
    address = ":80"

  [entryPoints.websecure]
    address = ":443"
    [entryPoints.websecure.tls]

[file]

[frontends]
  [frontends.frontend1]
    entryPoints = ["web", "websecure"]
    [frontends.frontend1.routes]
      [frontends.frontend1.routes.route0]
        rule = "Host:example.net"
    [frontends.frontend1.redirect]
      entryPoint = "websecure"

v2

Docker

labels:
  traefik.http.routers.app.rule: Host(`example.net`)
  traefik.http.routers.app.entrypoints: web
  traefik.http.routers.app.middlewares: https_redirect

  traefik.http.routers.appsecured.rule: Host(`example.net`)
  traefik.http.routers.appsecured.entrypoints: websecure
  traefik.http.routers.appsecured.tls: true

  traefik.http.middlewares.https_redirect.redirectscheme.scheme: https
  traefik.http.middlewares.https_redirect.redirectscheme.permanent: true

K8s IngressRoute

apiVersion: traefik.containo.us/v1alpha1
kind: IngressRoute
metadata:
  name: http-redirect-ingressRoute

spec:
  entryPoints:
    - web
  routes:
    - match: Host(`example.net`)
      kind: Rule
      services:
        - name: whoami
          port: 80
      middlewares:
        - name: https-redirect

---
apiVersion: traefik.containo.us/v1alpha1
kind: IngressRoute
metadata:
  name: https-ingressRoute

spec:
  entryPoints:
    - websecure
  routes:
    - match: Host(`foo`)
      kind: Rule
      services:
        - name: whoami
          port: 80
  tls: {}

---
apiVersion: traefik.containo.us/v1alpha1
kind: Middleware
metadata:
  name: https-redirect
spec:
  redirectScheme:
    scheme: https
    permanent: true

File (TOML)

## dynamic configuration
# dynamic-conf.toml

[http.routers]
  [http.routers.router0]
    rule = "Host(`example.net`)"
    service = "my-service"
    entrypoints = ["web"]
    middlewares = ["https_redirect"]

[http.routers.router1]
    rule = "Host(`example.net`)"
    service = "my-service"
    entrypoints = ["websecure"]
    [http.routers.router1.tls]

[http.middlewares]
  [http.middlewares.https_redirect.redirectScheme]
    scheme = "https"
    permanent = true

File (YAML)

## dynamic configuration
# dynamic-conf.yml

http:
  routers:
    router0:
      rule: "Host(`example.net`)"
      entryPoints:
        - web
      middlewares:
        - https_redirect
      service: my-service

    router1:
      rule: "Host(`example.net`)"
      entryPoints:
        - websecure
      service: my-service
      tls: {}

  middlewares:
    https-redirect:
      redirectScheme:
        scheme: https
        permanent: true

Strip and Rewrite Path Prefixes¶

With the new core notions of v2 (introduced earlier in the section "Frontends and Backends Are Dead... Long Live Routers, Middlewares, and Services"), transforming the URL path prefix of incoming requests is configured with middlewares, after the routing step with router rule PathPrefix.

Use Case: Incoming requests to http://example.org/admin are forwarded to the webapplication "admin", with the path /admin stripped, e.g. to http://<IP>:<port>/. In this case, you must:

First, configure a router named admin with a rule matching at least the path prefix with the PathPrefix keyword,
Then, define a middleware of type stripprefix, which removes the prefix /admin, associated to the router admin.

Strip Path Prefix When Forwarding to Backend

v1

Docker

labels:
  - "traefik.frontend.rule=Host:example.org;PathPrefixStrip:/admin"

Kubernetes Ingress

apiVersion: networking.k8s.io/v1beta1
kind: Ingress
metadata:
  name: traefik
  annotations:
    kubernetes.io/ingress.class: traefik
    traefik.ingress.kubernetes.io/rule-type: PathPrefixStrip
spec:
  rules:
  - host: example.org
    http:
      paths:
      - path: /admin
        backend:
          serviceName: admin-svc
          servicePort: admin

File (TOML)

[frontends.admin]
  [frontends.admin.routes.admin_1]
  rule = "Host:example.org;PathPrefixStrip:/admin"

v2

Docker

labels:
  - "traefik.http.routers.admin.rule=Host(`example.org`) && PathPrefix(`/admin`)"
  - "traefik.http.routers.admin.middlewares=admin-stripprefix"
  - "traefik.http.middlewares.admin-stripprefix.stripprefix.prefixes=/admin"

Kubernetes IngressRoute

---
apiVersion: traefik.containo.us/v1alpha1
kind: IngressRoute
metadata:
  name: http-redirect-ingressRoute
  namespace: admin-web
spec:
  entryPoints:
    - web
  routes:
    - match: Host(`example.org`) && PathPrefix(`/admin`)
      kind: Rule
      services:
        - name: admin-svc
          port: admin
      middlewares:
        - name: admin-stripprefix
---
apiVersion: traefik.containo.us/v1alpha1
kind: Middleware
metadata:
  name: admin-stripprefix
spec:
  stripPrefix:
    prefixes:
      - /admin

File (TOML)

## Dynamic configuration
# dynamic-conf.toml

[http.routers.router1]
    rule = "Host(`example.org`) && PathPrefix(`/admin`)"
    service = "admin-svc"
    entrypoints = ["web"]
    middlewares = ["admin-stripprefix"]

[http.middlewares]
  [http.middlewares.admin-stripprefix.stripPrefix]
  prefixes = ["/admin"]

# ...

File (YAML)

## Dynamic Configuration
# dynamic-conf.yml

# As YAML Configuration File
http:
  routers:
    admin:
      service: admin-svc
      middlewares:
        - "admin-stripprefix"
      rule: "Host(`example.org`) && PathPrefix(`/admin`)"

  middlewares:
    admin-stripprefix:
      stripPrefix:
        prefixes: 
        - "/admin"

# ...

What About Other Path Transformations?

Instead of removing the path prefix with the stripprefix middleware, you can also:

Add a path prefix with the addprefix middleware
Replace the complete path of the request with the replacepath middleware
ReplaceRewrite path using Regexp with the replacepathregex middleware
And a lot more on the middlewares page

ACME (LetsEncrypt)¶

ACME is now a certificate resolver (under a certificatesResolvers section) but remains in the static configuration.

ACME from provider to a specific Certificate Resolver

v1

File (TOML)

# static configuration
defaultEntryPoints = ["websecure","web"]

[entryPoints.web]
address = ":80"
  [entryPoints.web.redirect]
  entryPoint = "webs"
[entryPoints.websecure]
  address = ":443"
  [entryPoints.websecure.tls]

[acme]
  email = "[email protected]"
  storage = "acme.json"
  entryPoint = "websecure"
  onHostRule = true
  [acme.tlsChallenge]

CLI

--defaultentrypoints=websecure,web
--entryPoints=Name:web Address::80 Redirect.EntryPoint:websecure
--entryPoints=Name:websecure Address::443 TLS
[email protected]
--acme.storage=acme.json
--acme.entryPoint=websecure
--acme.onHostRule=true
--acme.tlschallenge=true

v2

File (TOML)

# static configuration
[entryPoints]
  [entryPoints.web]
    address = ":80"

  [entryPoints.websecure]
    address = ":443"
  [entryPoints.websecure.http.tls]
    certResolver = "myresolver"

[certificatesResolvers.myresolver.acme]
  email = "[email protected]"
  storage = "acme.json"
  [certificatesResolvers.myresolver.acme.tlsChallenge]

File (YAML)

entryPoints:
  web:
    address: ":80"

  websecure:
    address: ":443"
    http:
      tls:
        certResolver: myresolver

certificatesResolvers:
  myresolver:
    acme:
      email: [email protected]
      storage: acme.json
      tlsChallenge: {}

CLI

--entrypoints.web.address=:80
--entrypoints.websecure.address=:443
--certificatesresolvers.myresolver.acme.email=your-email@example.com
--certificatesresolvers.myresolver.acme.storage=acme.json
--certificatesresolvers.myresolver.acme.tlschallenge=true

Traefik Logs¶

In the v2, all the log configuration remains in the static part but are unified under a log section. There is no more log configuration at the root level.

Simple log configuration

v1

File (TOML)

# static configuration
logLevel = "DEBUG"

[traefikLog]
  filePath = "/path/to/traefik.log"
  format   = "json"

CLI

--logLevel=DEBUG
--traefikLog.filePath=/path/to/traefik.log
--traefikLog.format=json

v2

File (TOML)

# static configuration
[log]
  level = "DEBUG"
  filePath = "/path/to/log-file.log"
  format = "json"

File (YAML)

# static configuration
log:
  level: DEBUG
  filePath: /path/to/log-file.log
  format: json

CLI

--log.level=DEBUG
--log.filePath=/path/to/traefik.log
--log.format=json

Access Logs¶

Access Logs are configured in the same way as before.

But all request headers are now filtered out by default in Traefik v2. So during migration, you might want to consider enabling some needed fields (see access log configuration).

Tracing¶

Traefik v2 retains OpenTracing support. The backend root option from the v1 is gone, you just have to set your tracing configuration.

Simple Jaeger tracing configuration

v1

File (TOML)

# static configuration
[tracing]
  backend = "jaeger"
  servicename = "tracing"
  [tracing.jaeger]
    samplingParam = 1.0
    samplingServerURL = "http://12.0.0.1:5778/sampling"
    samplingType = "const"
    localAgentHostPort = "12.0.0.1:6831"

CLI

--tracing.backend=jaeger
--tracing.servicename=tracing
--tracing.jaeger.localagenthostport=12.0.0.1:6831
--tracing.jaeger.samplingparam=1.0
--tracing.jaeger.samplingserverurl=http://12.0.0.1:5778/sampling
--tracing.jaeger.samplingtype=const

v2

File (TOML)

# static configuration
[tracing]
  servicename = "tracing"
  [tracing.jaeger]
    samplingParam = 1.0
    samplingServerURL = "http://12.0.0.1:5778/sampling"
    samplingType = "const"
    localAgentHostPort = "12.0.0.1:6831"

File (YAML)

# static configuration
tracing:
  servicename: tracing
  jaeger:
    samplingParam: 1
    samplingServerURL: 'http://12.0.0.1:5778/sampling'
    samplingType: const
    localAgentHostPort: '12.0.0.1:6831'

CLI

--tracing.servicename=tracing
--tracing.jaeger.localagenthostport=12.0.0.1:6831
--tracing.jaeger.samplingparam=1.0
--tracing.jaeger.samplingserverurl=http://12.0.0.1:5778/sampling
--tracing.jaeger.samplingtype=const

Metrics¶

The v2 retains metrics tools and allows metrics to be configured for the entrypoints and/or services. For a basic configuration, the metrics configuration remains the same.

Simple Prometheus metrics configuration

v1

File (TOML)

# static configuration
[metrics.prometheus]
  buckets = [0.1,0.3,1.2,5.0]
  entryPoint = "traefik"

CLI

--metrics.prometheus.buckets=[0.1,0.3,1.2,5.0]
--metrics.prometheus.entrypoint=traefik

v2

File (TOML)

# static configuration
[metrics.prometheus]
  buckets = [0.1,0.3,1.2,5.0]
  entryPoint = "metrics"

File (YAML)

# static configuration
metrics:
  prometheus:
    buckets:
      - 0.1
      - 0.3
      - 1.2
      - 5
    entryPoint: metrics

CLI

--metrics.prometheus.buckets=[0.1,0.3,1.2,5.0]
--metrics.prometheus.entrypoint=metrics

No More Root Level Key/Values¶

To avoid any source of confusion, there are no more configuration at the root level. Each root item has been moved to a related section or removed.

From root to dedicated section

v1

File (TOML)

# static configuration
checkNewVersion = false
sendAnonymousUsage = true
logLevel = "DEBUG"
insecureSkipVerify = true
rootCAs = [ "/mycert.cert" ]
maxIdleConnsPerHost = 200
providersThrottleDuration = "2s"
AllowMinWeightZero = true
debug = true
defaultEntryPoints = ["web", "websecure"]
keepTrailingSlash = false

CLI

--checknewversion=false
--sendanonymoususage=true
--loglevel=DEBUG
--insecureskipverify=true
--rootcas=/mycert.cert
--maxidleconnsperhost=200
--providersthrottleduration=2s
--allowminweightzero=true
--debug=true
--defaultentrypoints=web,websecure
--keeptrailingslash=true

v2

File (TOML)

# static configuration
[global]
  checkNewVersion = true
  sendAnonymousUsage = true

[log]
  level = "DEBUG"

[serversTransport]
  insecureSkipVerify = true
  rootCAs = [ "/mycert.cert" ]
  maxIdleConnsPerHost = 42

[providers]
  providersThrottleDuration = 42

File (YAML)

# static configuration
global:
  checkNewVersion: true
  sendAnonymousUsage: true

log:
  level: DEBUG

serversTransport:
  insecureSkipVerify: true
  rootCAs:
    - /mycert.cert
  maxIdleConnsPerHost: 42

providers:
  providersThrottleDuration: 42

CLI

--global.checknewversion=true
--global.sendanonymoususage=true
--log.level=DEBUG
--serverstransport.insecureskipverify=true
--serverstransport.rootcas=/mycert.cert
--serverstransport.maxidleconnsperhost=42
--providers.providersthrottleduration=42

Dashboard¶

You need to activate the API to access the dashboard.

To activate the dashboard, you can either:

use the secure mode with the api@internal service like in the following examples
or use the insecure mode

Activate and access the dashboard

v1

File (TOML)

## static configuration
# traefik.toml

[entryPoints.websecure]
  address = ":443"
  [entryPoints.websecure.tls]
  [entryPoints.websecure.auth]
    [entryPoints.websecure.auth.basic]
      users = [
        "test:$apr1$H6uskkkW$IgXLP6ewTrSuBkTrqE8wj/"
      ]

[api]
  entryPoint = "websecure"

CLI

--entryPoints='Name:websecure Address::443 TLS Auth.Basic.Users:test:$apr1$H6uskkkW$IgXLP6ewTrSuBkTrqE8wj/'
--api

v2

Docker

# dynamic configuration
labels:
  - "traefik.http.routers.api.rule=Host(`traefik.docker.localhost`)"
  - "traefik.http.routers.api.entrypoints=websecure"
  - "traefik.http.routers.api.service=api@internal"
  - "traefik.http.routers.api.middlewares=myAuth"
  - "traefik.http.routers.api.tls"
  - "traefik.http.middlewares.myAuth.basicauth.users=test:$$apr1$$H6uskkkW$$IgXLP6ewTrSuBkTrqE8wj/"

File (TOML)

## static configuration
# traefik.toml

[entryPoints.websecure]
  address = ":443"

[api]

[providers.file]
  directory = "/path/to/dynamic/config"

##---------------------##

## dynamic configuration
# /path/to/dynamic/config/dynamic-conf.toml

[http.routers.api]
  rule = "Host(`traefik.docker.localhost`)"
  entrypoints = ["websecure"]
  service = "api@internal"
  middlewares = ["myAuth"]
  [http.routers.api.tls]

[http.middlewares.myAuth.basicAuth]
  users = [
    "test:$apr1$H6uskkkW$IgXLP6ewTrSuBkTrqE8wj/"
  ]

File (YAML)

## static configuration
# traefik.yaml

entryPoints:
  websecure:
    address: ':443'

api: {}

providers:
  file:
    directory: /path/to/dynamic/config

##---------------------##

## dynamic configuration
# /path/to/dynamic/config/dynamic-conf.yaml

 http:
  routers:
    api:
      rule: Host(`traefik.docker.localhost`)
      entrypoints:
        - websecure
      service: api@internal
      middlewares:
        - myAuth
      tls: {}

  middlewares:
    myAuth:
      basicAuth:
        users:
          - 'test:$apr1$H6uskkkW$IgXLP6ewTrSuBkTrqE8wj/'

Providers¶

Supported providers, for now:

Some Tips You Should Know¶

Different sources of static configuration (file, CLI flags, ...) cannot be mixed.
Now, configuration elements can be referenced between different providers by using the provider namespace notation: @<provider>. For instance, a router named myrouter in a File Provider can refer to a service named myservice defined in Docker Provider with the following notation: myservice@docker.
Middlewares are applied in the same order as their declaration in router.
If you have any questions feel free to join our community forum.

Migration Guide: From v1 to v2¶

Frontends and Backends Are Dead... ... Long Live Routers, Middlewares, and Services¶

TLS Configuration is Now Dynamic, per Router.¶

HTTP to HTTPS Redirection is Now Configured on Routers¶

Strip and Rewrite Path Prefixes¶

ACME (LetsEncrypt)¶

Traefik Logs¶

Access Logs¶

Tracing¶

Metrics¶

No More Root Level Key/Values¶

Dashboard¶

Providers¶

Some Tips You Should Know¶

Frontends and Backends Are Dead...
... Long Live Routers, Middlewares, and Services¶