Load Balancers Support Articles
You can configure load balancers that are provisioned by DOKS using Kubernetes service annotations .
If you enable PROXY protocol on a load balancer but the services on the backend Droplets aren’t configured to accept PROXY protocol headers, those Droplets will give a 400 response to the load balancer’s health checks. This means the load balancer will consider them unhealthy and will stop routing traffic to them.