Where is ansible var {{ kubevip_interface }} declared?

[ahgraber]

I'm trying to follow along with the ansible provisioning of the cluster. I can see that k3s_registration_address is being brought in group_vars/kubernetes/k3s.yaml file, but I don't see kubevip_interface declared anywhere.

I can see we declare it as BOOTSTRAP_ANSIBLE_KUBE_VIP_INTERFACE in config.env, and that is picked up in global kube-vip template, but I can't trace the lineage into the ansible template file

Am I missing something?

https://github.com/k8s-at-home/template-cluster-k3s/blob/088c1d9bcf622ce6e522958d106a02b3b15de95d/provision/ansible/playbooks/templates/kube-vip-daemonset.yaml.j2#L41

[onedr0p]

That is used in this file https://github.com/k8s-at-home/template-cluster-k3s/blob/main/tmpl/cluster/kube-vip-daemonset.yaml which gets copied into the right place when you run the configure script.

[ahgraber]

Why have two template files for kube-vip? Is one for k3s init and the other used once flux is installed or something?

[onedr0p]

Yes, I was just writing that

Basically kube vip is installed with k3s at cluster init and then managed by flux afterwards