Add a post-join control-plane readiness gate so a half-succeeded server
join on a degraded etcd can no longer pass as success. Retry the MetalLB
IPAddressPool/L2Advertisement applies to ride out the validating-webhook
startup race. Narrow the k3sup cleanup glob, quiet the final k3sup ready
tip, and clarify two comments.
README: add networking caveats (VIP/LB outside the DHCP pool, same-subnet
ARP/L2, interface naming), certName key placement, a post-run verification
section, machine-count/admin-box notes, and fix the RAW_BASE description.
- join all nodes to --server-ip $vip (the readiness-gated VIP) so no single
master is the registration SPOF; drop the dead --server-user on joins
(a --node-token is already supplied, so k3sup doesn't SSH the server)
- add --tls-san=$vip to every server's args (not just master1's install) so
master2/3 declare the VIP SAN uniformly
- pin --flannel-iface/--node-ip on workers too (correct on multi-NIC nodes)
- filter k3sup's repeated 'slicervm.com' promo tip on install/join (sed, so
pipefail still surfaces a real failure)
- guard 'kubectl expose' with || true so a re-run doesn't abort on AlreadyExists
Re-validated on the 6-VM Multipass e2e: 5 nodes Ready, VIP serves the API,
MetalLB LoadBalancer reachable.
- match the global README.md convention; update the reference in k3s.sh
- pad the options table so it reads cleanly in raw and rendered views,
kept under the 80-col markdownlint limit
Found running the deploy end-to-end on a multi-node cluster:
- k3sup: get.k3sup.dev leaves an arch-suffixed binary (k3sup-arm64) when
run unprivileged; install whichever binary it produced, not a literal
'k3sup' that may not exist.
- kube-vip: scp landed the manifest in the ssh user's home, but the mv
ran as root (sudo bash -s) where ~ is /root; scp to /tmp and mv from
the absolute path instead.
- rewrite only the server URL (https://master1:6443 -> VIP) instead of a
global regex substitution whose dots could over-match cert data
- poll the VIP /readyz after repointing the kubeconfig, so a broken
kube-vip fails early with a clear message instead of downstream
The kubeadm default mounts /etc/kubernetes/admin.conf, which does not
exist on k3s. --inCluster uses the kube-vip ServiceAccount (provided by
the applied rbac.yaml) instead, which is the correct mode for k3s.
- added the variable for the ssh config file
- check if the file exist
- if file exist, look for the StrictHostKeyChecking value and update if needed, otherwise add the line
- if file does not exist, create it, change file permissions and add the setting
