Hi there,

What I could suggest here is to encrypt the traffic to your Kubernetes cluster by using an SSL certificate with the DigitalOcean Load Balancer. You can follow the steps on how to do that here:

https://www.digitalocean.com/docs/kubernetes/how-to/configure-load-balancers/#ssl-annotation

If you are not using a DigitalOcean Load Balancer, another option would be to try out this tutorial here on how to set up an Nginx Ingress with Cert-Manager on DigitalOcean Kubernetes:

https://www.digitalocean.com/community/tutorials/how-to-set-up-an-nginx-ingress-with-cert-manager-on-digitalocean-kubernetes

Hope that this helps!
Regards,
Bobby