Bug in bootstrapping

[blackliner]

talos-bootstrap/talos-bootstrap

Line 532 in 29259af

while ! nmap -Pn ${vip_address} -p 50000 | grep -q 'open' && [ ${count} -lt ${max_retries} ]; do

uses the VIP to bootstrap, but I don't think the VIP will be claimed by a non-bootstrapped CP. If that would be the case, then multiple CP would fight for the VIP before even forming a cluster.

Confirmed: https://docs.siderolabs.com/talos/v1.8/networking/vip#caveats

Caveats
Since VIP functionality relies on etcd for elections, the shared IP will not come alive until after you have bootstrapped Kubernetes.
Don’t use the VIP as the endpoint in the talosconfig, as the VIP is bound to etcd and kube-apiserver health, and you will not be able to recover from a failure of either of those components using Talos API.