ingress-nginx-helm/docs/examples/customization/custom-errors/custom-default-backend.helm.values.yaml

controller:
  config:
    custom-http-errors: "404,503"
defaultBackend:
  enabled: true
  image:
    registry: registry.k8s.io
    image: ingress-nginx/custom-error-pages
    tag: v1.1.3@sha256:5aeaf5d01470bcc7d73b8846458b00dbc62d54277cd110cec8f28e663c11f93e
  extraVolumes:
  - name: custom-error-pages
    configMap:
      name: custom-error-pages
      items:
      - key: "404"
        path: "404.html"
      - key: "503"
        path: "503.html"
  extraVolumeMounts:
  - name: custom-error-pages
    mountPath: /www