As today (8 jan 2021) I’m using the 1.19.3-do.3 version of the DigitalOcean-Kubernetes cluster.
The command’s in the tutorial to install the NGINX Ingress Controller are for an older version.
So please specify in your side note that if you’re using a different DigitalOcean-Kubernetes cluster as you have used, you need to use the command specified in
https://kubernetes.github.io/ingress-nginx/deploy/
