Traefik & Marathon

    See also Marathon user guide.

    Labels

    • Labels are case insensitive.
    • The complete list of labels can be found in the reference page.

    Traefik creates, for each Marathon application, a corresponding service and .

    The Service automatically gets a server per instance of the application, and the router automatically gets a rule defined by defaultRule (if no rule for it was defined in labels).

    Service definition

    In general when configuring a Traefik provider, a service assigned to one (or several) router(s) must be defined as well for the routing to be functional.

    There are, however, exceptions when using label-based configurations:

    1. If a label defines a router (e.g. through a router Rule) and a label defines a service (e.g. implicitly through a loadbalancer server port value), but the router does not specify any service, then that service is automatically assigned to the router.
    2. If a label defines a router (e.g. through a router Rule) but no service is defined, then a service is automatically created and assigned to the router.

    As one would expect, in either of these cases, if in addition a service is specified for the router, then that service is the one assigned, regardless of whether it actually is defined or whatever else other services are defined.

    Automatic service assignment with labels

    Service myservice gets automatically assigned to router myproxy.

    Automatic service creation and assignment with labels

    No service specified or defined, and yet one gets automatically created. and assigned to router myproxy.

    1. labels: {
    2.   "traefik.http.routers.myproxy.rule": "Host(`example.net`)"
    3. }

    Routers

    To update the configuration of the Router automatically attached to the application, add labels starting with traefik.http.routers.{router-name-of-your-choice}. and followed by the option you want to change.

    For example, to change the routing rule, you could add the label "traefik.http.routers.routername.rule": "Host(`example.com`)".

    The character @ is not authorized in the router name <router_name>.

    traefik.http.routers.<router_name>.rule

    See rule for more information.

    1. "traefik.http.routers.myrouter.rule": "Host(`example.com`)"

    traefik.http.routers.<router_name>.entrypoints

    See for more information.

    1. "traefik.http.routers.myrouter.entrypoints": "ep1,ep2"

    traefik.http.routers.<router_name>.middlewares

    See middlewares and for more information.

    1. "traefik.http.routers.myrouter.middlewares": "auth,prefix,cb"

    traefik.http.routers.<router_name>.service

    See rule for more information.

    1. "traefik.http.routers.myrouter.service": "myservice"

    traefik.http.routers.<router_name>.tls

    See for more information.

    1. "traefik.http.routers.myrouter.tls": "true"

    traefik.http.routers.<router_name>.tls.certresolver

    See certResolver for more information.

    1. "traefik.http.routers.myrouter.tls.certresolver": "myresolver"

    traefik.http.routers.<router_name>.tls.domains[n].main

    See for more information.

      traefik.http.routers.<router_name>.tls.domains[n].sans

      See domains for more information.

      1. "traefik.http.routers.myrouter.tls.domains[0].sans": "test.example.org,dev.example.org"

      traefik.http.routers.<router_name>.tls.options

      See for more information.

      1. "traefik.http.routers.myrouter.tls.options": "foobar"

      traefik.http.routers.<router_name>.priority

      See priority for more information.

      1. "traefik.http.routers.myrouter.priority": "42"

      To update the configuration of the Service automatically attached to the container, add labels starting with traefik.http.services.{service-name-of-your-choice}., followed by the option you want to change.

      For example, to change the passHostHeader behavior, you’d add the label "traefik.http.services.servicename.loadbalancer.passhostheader": "false".

      The character @ is not authorized in the service name <service_name>.

      traefik.http.services.<service_name>.loadbalancer.server.port

      Registers a port. Useful when the container exposes multiples ports.

      1. "traefik.http.services.myservice.loadbalancer.server.port": "8080"

      traefik.http.services.<service_name>.loadbalancer.server.scheme

      1. "traefik.http.services.myservice.loadbalancer.server.scheme": "http"

      traefik.http.services.<service_name>.loadbalancer.serverstransport

      Allows to reference a ServersTransport resource that is defined either with the File provider or the Kubernetes CRD one. See serverstransport for more information.

      1. "traefik.http.services.<service_name>.loadbalancer.serverstransport": "[email protected]"

      traefik.http.services.<service_name>.loadbalancer.passhostheader

      See for more information.

      1. "traefik.http.services.myservice.loadbalancer.passhostheader": "true"

      traefik.http.services.<service_name>.loadbalancer.healthcheck.headers.<header_name>

      See health check for more information.

      1. "traefik.http.services.myservice.loadbalancer.healthcheck.headers.X-Foo": "foobar"

      See for more information.

      traefik.http.services.<service_name>.loadbalancer.healthcheck.interval

      See health check for more information.

      1. "traefik.http.services.myservice.loadbalancer.healthcheck.interval": "10"

      traefik.http.services.<service_name>.loadbalancer.healthcheck.path

      See for more information.

      1. "traefik.http.services.myservice.loadbalancer.healthcheck.path": "/foo"

      traefik.http.services.<service_name>.loadbalancer.healthcheck.method

      See health check for more information.

      1. "traefik.http.services.myservice.loadbalancer.healthcheck.method": "foobar"

      traefik.http.services.<service_name>.loadbalancer.healthcheck.port

      See for more information.

      1. "traefik.http.services.myservice.loadbalancer.healthcheck.port": "42"

      traefik.http.services.<service_name>.loadbalancer.healthcheck.scheme

      See health check for more information.

      1. "traefik.http.services.myservice.loadbalancer.healthcheck.scheme": "http"

      traefik.http.services.<service_name>.loadbalancer.healthcheck.timeout

      See for more information.

      1. "traefik.http.services.myservice.loadbalancer.healthcheck.timeout": "10"

      traefik.http.services.<service_name>.loadbalancer.healthcheck.followredirects

      See health check for more information.

      1. "traefik.http.services.myservice.loadbalancer.healthcheck.followredirects": "true"

      traefik.http.services.<service_name>.loadbalancer.sticky.cookie

      See for more information.

      1. "traefik.http.services.myservice.loadbalancer.sticky.cookie": "true"

      traefik.http.services.<service_name>.loadbalancer.sticky.cookie.httponly

      See sticky sessions for more information.

      1. "traefik.http.services.myservice.loadbalancer.sticky.cookie.httponly": "true"

      traefik.http.services.<service_name>.loadbalancer.sticky.cookie.name

      See for more information.

      1. "traefik.http.services.myservice.loadbalancer.sticky.cookie.name": "foobar"

      traefik.http.services.<service_name>.loadbalancer.sticky.cookie.secure

      See sticky sessions for more information.

      1. "traefik.http.services.myservice.loadbalancer.sticky.cookie.secure": "true"

      traefik.http.services.<service_name>.loadbalancer.sticky.cookie.samesite

      See for more information.

      1. "traefik.http.services.myservice.loadbalancer.sticky.cookie.samesite": "none"

      traefik.http.services.<service_name>.loadbalancer.responseforwarding.flushinterval

      See response forwarding for more information.

      1. "traefik.http.services.myservice.loadbalancer.responseforwarding.flushinterval": "10"

      Middleware

      You can declare pieces of middleware using labels starting with traefik.http.middlewares.{middleware-name-of-your-choice}., followed by the middleware type/options.

      For example, to declare a middleware redirectscheme named my-redirect, you’d write "traefik.http.middlewares.my-redirect.redirectscheme.scheme": "https".

      More information about available middlewares in the dedicated .

      The character @ is not authorized in the middleware name.

      Declaring and Referencing a Middleware

      1. {
      2.     ...
      3.     "labels": {
      4.         "traefik.http.middlewares.my-redirect.redirectscheme.scheme": "https",
      5.         "traefik.http.routers.my-container.middlewares": "my-redirect"
      6.     }
      7. }

      Conflicts in Declaration

      You can declare TCP Routers and/or Services using labels.

      Declaring TCP Routers and Services

      1.     ...
      2.     "labels": {
      3.         "traefik.tcp.routers.my-router.rule": "HostSNI(`example.com`)",
      4.         "traefik.tcp.routers.my-router.tls": "true",
      6.     }
      7. }

      TCP and HTTP

      If you declare a TCP Router/Service, it will prevent Traefik from automatically creating an HTTP Router/Service (like it does by default if no TCP Router/Service is defined). You can declare both a TCP Router/Service and an HTTP Router/Service for the same container (but you have to do so manually).

      TCP Routers

      traefik.tcp.routers.<router_name>.entrypoints

      See entry points for more information.

      1. "traefik.tcp.routers.mytcprouter.entrypoints": "ep1,ep2"

      traefik.tcp.routers.<router_name>.rule

      See for more information.

      traefik.tcp.routers.<router_name>.service

      See service for more information.

      1. "traefik.tcp.routers.mytcprouter.service": "myservice"

      traefik.tcp.routers.<router_name>.tls

      See for more information.

      1. "traefik.tcp.routers.mytcprouter.tls": "true

      traefik.tcp.routers.<router_name>.tls.certresolver

      See certResolver for more information.

      1. "traefik.tcp.routers.mytcprouter.tls.certresolver": "myresolver"

      traefik.tcp.routers.<router_name>.tls.domains[n].main

      See for more information.

      1. "traefik.tcp.routers.mytcprouter.tls.domains[0].main": "example.org"

      traefik.tcp.routers.<router_name>.tls.domains[n].sans

      See domains for more information.

      1. "traefik.tcp.routers.mytcprouter.tls.domains[0].sans": "test.example.org,dev.example.org"

      traefik.tcp.routers.<router_name>.tls.options

      See for more information.

      1. "traefik.tcp.routers.mytcprouter.tls.options": "mysoptions"

      traefik.tcp.routers.<router_name>.tls.passthrough

      See TLS for more information.

      1. "traefik.tcp.routers.mytcprouter.tls.passthrough": "true"

      traefik.tcp.routers.<router_name>.priority

      See for more information.

      1. "traefik.tcp.routers.myrouter.priority": "42"

      TCP Services

      traefik.tcp.services.<service_name>.loadbalancer.server.port

      Registers a port of the application.

      1. "traefik.tcp.services.mytcpservice.loadbalancer.server.port": "423"

      traefik.tcp.services.<service_name>.loadbalancer.terminationdelay

      See for more information.

      1. "traefik.tcp.services.mytcpservice.loadbalancer.terminationdelay": "100"

      traefik.tcp.services.<service_name>.loadbalancer.proxyprotocol.version

      See PROXY protocol for more information.

      1. "traefik.tcp.services.mytcpservice.loadbalancer.proxyprotocol.version": "1"

      UDP

      You can declare UDP Routers and/or Services using labels.

      Declaring UDP Routers and Services

      1. {
      2.     ...
      3.     "labels": {
      4.         "traefik.udp.routers.my-router.entrypoints": "udp",
      5.         "traefik.udp.services.my-service.loadbalancer.server.port": "4123"
      6.     }
      7. }

      UDP and HTTP

      If you declare a UDP Router/Service, it will prevent Traefik from automatically creating an HTTP Router/Service (like it does by default if no UDP Router/Service is defined). You can declare both a UDP Router/Service and an HTTP Router/Service for the same container (but you have to do so manually).

      UDP Routers

      traefik.udp.routers.<router_name>.entrypoints

      See for more information.

      1. "traefik.udp.routers.myudprouter.entrypoints": "ep1,ep2"

      traefik.udp.routers.<router_name>.service

      See service for more information.

      1. "traefik.udp.routers.myudprouter.service": "myservice"

      UDP Services

      traefik.udp.services.<service_name>.loadbalancer.server.port

      Registers a port of the application.

        traefik.enable

        1. "traefik.enable": "true"

        traefik.marathon.ipadressidx

        If a task has several IP addresses, this option specifies which one, in the list of available addresses, to select.