Hi. Need some help 🙂 Is there any way on how to configure Rancher and vsphere to use static IPs for cluster creation? Rancher 2.12 vsphere 8.0.

Sort of. I did it by creating custom clusters and making up the servers separately, then running the registration curl on them. Not as integrated, but it works without DHCP.

I tried creating node by node and configuring static ip via cloud_config. But somehow ubuntu or rancher 20.04 didn't execute network part ;/

Obvious first question is whether the firewalls are open between the two. As mentioned, I set up the servers separately with IP addresses on vSphere, but they are on different networks to the Rancher cluster, so ports 80/443/6443 are opened up for them to communicate, after which the curl command for registration can be run on the new server to give it a role or three in the cluster. The cluster is set up with no reference to any servers at all, hence needing the registration command to run curl.

This can help you deploying virtual machines with static IP from Rancher and vsphere I guess. https://www.virtualthoughts.co.uk/2020/03/29/rancher-vsphere-network-protocol-profiles-and-static-ip-addresses-for-k8s-nodes/