http:
  services:
    errorpages-backend:
      loadBalancer:
        servers:
          - url: "http://errorpages:80"
        passHostHeader: false
  middlewares:
    error-404:
      errors:
        status: "400-499"
        service: errorpages-backend
        query: "/{status}.html"
    error-500:
      errors:
        status: "500-599"
        service: errorpages-backend
        query: "/{status}.html"