So I am using the nginx ingress and installed it trough the helm chart:

helm install --set controller.kind=DaemonSet --set controller.service.annotations."service\.beta\.kubernetes\.io/do-loadbalancer-size-slug"="lb-large" --set controller.service.annotations."service\.beta\.kubernetes\.io/do-loadbalancer-hostname"="some\.url\.com" ingress-nginx ingress-nginx/ingress-nginx

This automatically created a loadbalancer on digital ocean as well.

As far as I understand until now, referencing this i have to:

1. Create a docker image which will act as default backend, like this.
2. Have to set the following things in the helm chart:
   • defaultBackend.enable => true
   • defaultBackend.image => The image created in step 1.
   • controller.config.custom-http-errors => [404, 503, ..] (all the errors i want to be handled by the default backend (config values reference).
3. Upgrade the helm chart.

Would this be the right and also easiest approach or is there a simpler way?

Also would upgrading the helm chart, remove the old loadbalancer and create a new one?