jakman85andClaude Opus 5
08fbe85638
Node 1's SSD failed and was replaced; Debian was reinstalled, so node 1 is now a
JOINING node with no cluster state. It was still listed in [k3s_prod_primary],
and that group decides two things at once:
1. which play gets k3s_server_mode: primary -> --cluster-init, which FOUNDS A
NEW CLUSTER, and
2. what k3s_api_host resolves to -- the --server join target.
So re-provisioning node 1 unchanged would have pointed a rebuilt, empty node at
ITSELF and founded a second cluster beside the live one. The role's
`creates: /etc/rancher/k3s/k3s.yaml` guard does not help: on a fresh install that
file is absent, so cluster-init WOULD have run.
Node 2 is the senior surviving server (up since 2026-09-01) and takes the founder
slot. Its own cluster-init task is inert precisely because k3s.yaml already exists
there. Verified after the change: k3s_api_host renders 192.168.2.11, and
groups[k3s_primary_group][0] is k3s-prod-2.
This is a latent gap the role documented but did not handle -- its comment assumes
the founder is always alive ('On a WARM single-node rejoin the founder is up and
answering too'). Rebuilding the founder itself was not covered.
Co-Authored-By: Claude Opus 5 <[email protected]>
infra/ — node provisioning and the toolchain
OpenTofu (Proxmox VE) + cloud-init + Ansible bring up the 3-node k3s/Cilium dev cluster.
Spec: ../home-network-k3s/docs/02-environments-and-provisioning.md.
| Path | What |
|---|---|
tofu/ |
The "Create" stage: 3 cloud-init'd VMs on the Proxmox box (bpg/proxmox provider) |
cloud-init/ |
First-boot baseline shipped as a Proxmox user-data snippet |
ansible/ |
The "Baseline"/"Configure" stages: k3s HA, Cilium, kube-vip, the VPN egress gateway |
devcontainer/ |
The pinned toolchain (tofu, ansible, sops, age, flux, kubectl, helm and the whole CI gate toolchain) |
cluster.sh |
RETIRED — drove the old libvirt VMs; does not work against Proxmox |
PHASE1-STATUS.md |
Current state of the cluster and how to reconnect to it |
PHASE1-SCOPE.md |
Historical Phase-1 scoping doc (libvirt era — superseded) |
Where the cluster actually lives
The dev cluster is not on this workstation. It runs on a Proxmox VE host; the nodes sit on the Proxmox LAN and are reached across a pfSense NAT:
| Nodes | k3s-dev-1/2/3 at 192.168.1.50/.51/.52 — 6 vCPU, 24 GiB, Debian 13, k3s v1.36.4 |
| kube-API | kube-vip VIP 192.168.1.49:6443, reached from the workstation via NAT 192.168.2.50:6443 |
| Node SSH | pfSense NAT 192.168.2.102:2250/2251/2252 → node :22 (Ansible only) |
| Ingress VIP | 192.168.1.53 (Cilium L2, shared Gateway); .53–.60 reserved for LB VIPs |
The earlier libvirt/KVM cluster on 10.73.0.0/24 is retired. Any doc or command referencing
virsh, qemu:///system, or 10.73.0.x for the cluster is historical.