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Viktor Barzin f5b1fb179a docs: add k8s node auto-upgrade runbook + architecture section 
The OS-side counterpart to the service-upgrade pipeline. Covers
the unattended-upgrades + kured + sentinel-gate + Prometheus
halt-on-alert design landed in c0991f7f8.

Runbook: ops procedures (verify health, halt rollout, restore
config to a re-imaged node, roll back a bad upgrade, investigate
which alert is blocking).

Architecture doc: extends the existing service-upgrade flow with
a "K8s Node OS Upgrades" section (stack, sources of truth, day-2
mechanism, why-this-design rationale tied to the March 2026
post-mortem).

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
2026-05-22 14:16:41 +00:00
..
architecture docs: add k8s node auto-upgrade runbook + architecture section 2026-05-22 14:16:41 +00:00
benchmarks infra/llama-cpp: benchmark report + -fa flag fix 2026-05-22 14:16:41 +00:00
plans docs/plans: 2026-04-20 infra audit design (post-research, post-challenge) 2026-05-22 14:16:41 +00:00
post-mortems docs/authentik: document postgres session backend + close out 2026-04-18 post-mortem items 2026-05-22 14:16:41 +00:00
runbooks docs: add k8s node auto-upgrade runbook + architecture section 2026-05-22 14:16:41 +00:00
README.md [docs] TrueNAS decommission cleanup — remove references from active docs 2026-04-19 16:55:43 +00:00

README.md

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

  1. Review the Overview for a high-level understanding
  2. Read the Networking doc to understand connectivity
  3. Check Compute for resource management patterns
  4. Explore individual architecture docs based on your area of interest