Terraform destroy doesn't destroy the DigitalOcean load balancer

[imgrant]

After following the fix in #3, terraform destroy completes but leaves behind an orphaned DigitalOcean load balancer.

The reason is that load balancer was deployed by adding the Kubernetes resource via flux, not via Terraform.
The solution is to remove the ingress-nginx Kubernetes resources before uninstalling flux (or manually delete the ingress-nginx resources via kubectl after flux has been uninstalled) and before using terraform destroy.