Im trying to set up a Kubernetes cluster using 3 different machines on the same location (newbie here).
I managed to get it working using a private network for inter-node communication as it is unmetered. The only problem I have is that the cluster doesn't have internet access and can't download any containers from internet registries.
I tried configuring a NAT rule with ufw and iptables but it didn't work. I used this guide https://help.ubuntu.com/lts/serverguide/firewall.html
Can I do this on Vultr?
I could just confugre a vpn to secure the cluster communication, but It's not clear to me if that traffic would count towards the limit per machine.