hello everyone, I have for sure a dumb ass question, but honestly a bit confused on how to look the answer, I want to create a HA Cluster using my private network, the public network is over interface eno1 and private over eno2 I saw options like --node-ip and --node-external-ip, are those the one I need to use to allow my cluster to communicate over private network? I want communication like for e.g.: Ingress -> service -> pod going through private network

do you mean an HA cluster that rancher will run on, or an HA cluster that rancher will manage? The former is referred to as

airgap

. The latter, it sounds like you’ve the right idea. As long as your rancher server can access the internal network you’re referring to for the downstream nodes/cluster, just omit the external-ip setting when provisioning. You’ll need to make sure that your rancher-server-url is reachable by any nodes that rancher will manage (i.e. if that is set to a public IP that isn’t reachable by your private nodes, you won’t be able to manage said nodes).

I mean a HA cluster run by my self on my own hardware, not the one managed by rancher. I'm using k3s product to run it

that sounds a lot like an airgap setup (just without rancher, which is fine). if you have 2 networks, one for private and one for public, you should be able to configure all of your nodes to use the private network. Since this is on your own hardware though, I’m not sure what else would be required other than general stuff you could google on how to use private networks for clusters.

well based on k3s docs this is an airgap