ErrorPage

It Has Never Been Easier to Say That Something Went Wrong

The ErrorPage middleware returns a custom page in lieu of the default, according to configured ranges of HTTP Status codes.

Important

The error page itself is not hosted by Traefik.

Configuration Examples

Docker

# Dynamic Custom Error Page for 5XX Status Code
labels:
  - "traefik.http.middlewares.test-errorpage.errors.status=500-599"
  - "traefik.http.middlewares.test-errorpage.errors.service=serviceError"
  - "traefik.http.middlewares.test-errorpage.errors.query=/{status}.html"

Kubernetes

apiVersion: traefik.containo.us/v1alpha1
kind: Middleware
metadata:
  name: test-errorpage
spec:
  errors:
    status:
      - "500-599"
    query: /{status}.html
    service:
      name: whoami
      port: 80

Consul Catalog

# Dynamic Custom Error Page for 5XX Status Code
- "traefik.http.middlewares.test-errorpage.errors.status=500-599"
- "traefik.http.middlewares.test-errorpage.errors.service=serviceError"
- "traefik.http.middlewares.test-errorpage.errors.query=/{status}.html"

Marathon

"labels": {
  "traefik.http.middlewares.test-errorpage.errors.status": "500-599",
  "traefik.http.middlewares.test-errorpage.errors.service": "serviceError",
  "traefik.http.middlewares.test-errorpage.errors.query": "/{status}.html"
}

Rancher

# Dynamic Custom Error Page for 5XX Status Code
labels:
  - "traefik.http.middlewares.test-errorpage.errors.status=500-599"
  - "traefik.http.middlewares.test-errorpage.errors.service=serviceError"
  - "traefik.http.middlewares.test-errorpage.errors.query=/{status}.html"

File (YAML)

# Custom Error Page for 5XX
http:
  middlewares:
    test-errorpage:
      errors:
        status:
          - "500-599"
        service: serviceError
        query: "/{status}.html"

  services:
    # ... definition of error-handler-service and my-service

File (TOML)

# Custom Error Page for 5XX
[http.middlewares]
  [http.middlewares.test-errorpage.errors]
    status = ["500-599"]
    service = "serviceError"
    query = "/{status}.html"

[http.services]
  # ... definition of error-handler-service and my-service

In this example, the error page URL is based on the status code (query=/{status}.html).

Configuration Options

status

The status option defines which status or range of statuses should result in an error page.

The status code ranges are inclusive (500-599 will trigger with every code between 500 and 599, 500 and 599 included).

You can define either a status code as a number (500), as multiple comma-separated numbers (500,502), as ranges by separating two codes with a dash (500-599), or a combination of the two (404,418,500-599).

service

The service that will serve the new requested error page.

In Kubernetes, you need to reference a Kubernetes Service instead of a Traefik service.

query

The URL for the error page (hosted by service). You can use the {status} variable in the query option in order to insert the status code in the URL.