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The autonomous 1.34.9 version-upgrade chain has been failing its preflight every night. A prior run left k8s-master + k8s-node1 on 1.34.9 while node2-6 stayed on 1.34.8, and preflight's gate-4 runs `kubeadm upgrade plan` on master. On an already-at-target master, kubeadm prints no "kubeadm upgrade apply vX.Y.Z" line, so the parsed target came back empty and the `!= requested` check aborted the whole chain before any worker was touched. Deterministic — it self-cleaned and re-failed identically each night, so it would have failed again tonight, leaving node2-6 stuck on the old patch. Fix: skip the kubeadm-plan-target gate when master is already on TARGET_VERSION — the same at-target self-skip that phase_master and phase_worker already do. The remaining workers are still validated by their own per-node phases, and the detector already confirmed the target is installable via apt-cache. This lets tonight's unattended chain resume and finish node2-6 -> 1.34.9. Runbook updated: node count 5 -> 7, the gate skip note, and a Past Incidents writeup (incl. the collateral apiserver OIDC wipe, restored via the rbac stack). Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> |
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Infrastructure Documentation
This repository contains the configuration and documentation for a homelab Kubernetes cluster running on Proxmox. The infrastructure hosts 70+ services managed declaratively with Terraform and Terragrunt.
Quick Reference
Network Ranges
- Physical Network:
192.168.1.0/24- Physical devices and host network - Management VLAN 10:
10.0.10.0/24- Infrastructure VMs and management - Kubernetes VLAN 20:
10.0.20.0/24- Kubernetes cluster network
Key URLs
- Public:
viktorbarzin.me - Internal:
viktorbarzin.lan
Architecture Documentation
| Document | Description |
|---|---|
| Overview | Infrastructure overview, hardware specs, VM inventory, and service catalog |
| Networking | Network topology, VLANs, routing, and firewall rules |
| VPN | Headscale mesh VPN and Cloudflare Tunnel configuration |
| Storage | Proxmox host NFS, Proxmox CSI (LVM-thin + LUKS2), and persistent volume management |
| Authentication | Authentik SSO, OIDC flows, and service integration |
| Security | CrowdSec IPS, Kyverno policies, and security controls |
| Monitoring | Prometheus, Grafana, Loki, and observability stack |
| Secrets Management | HashiCorp Vault integration and secret rotation |
| CI/CD | Woodpecker CI pipeline and deployment automation |
| Backup & DR | Backup strategy, disaster recovery, and restore procedures |
| Compute | Proxmox VMs, GPU passthrough, K8s resource management, and VPA |
| Databases | PostgreSQL, MySQL, Redis, and database operators |
| Multi-tenancy | Namespace isolation, tier system, and resource quotas |
Operations
- Runbooks - Step-by-step operational procedures
- Plans - Infrastructure change plans and rollout strategies
Getting Started
- Review the Overview for a high-level understanding
- Read the Networking doc to understand connectivity
- Check Compute for resource management patterns
- Explore individual architecture docs based on your area of interest