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Viktor Barzin 69fbd0ffd6 [docs] Update auto-upgrade docs — new HTTP auth path + n8n expression gotcha 
Replaces the stale "Dev VM SSH key" secret entry with the current
`claude-agent-service` bearer token path (synced to both consumer +
caller namespaces). Adds an "n8n workflow gotchas" section documenting:

1. The workflow is DB-state, not Terraform-managed — the JSON in the
   repo is a backup, not authoritative.
2. Header-expression syntax: `=Bearer {{ $env.X }}` works, JS concat
   `='Bearer ' + $env.X` does NOT — costs silent 401s.
3. `N8N_BLOCK_ENV_ACCESS_IN_NODE=false` requirement.
4. 401-troubleshooting steps and the UPDATE pattern for in-place
   workflow patches.

Follow-up to 99180bec which fixed the actual pipeline break.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-04-18 10:42:11 +00:00
..
architecture [docs] Update auto-upgrade docs — new HTTP auth path + n8n expression gotcha 2026-04-18 10:42:11 +00:00
plans [docs] Update anti-AI and rybbit docs after rewrite-body removal 2026-04-17 21:43:13 +00:00
post-mortems docs: update post-mortem follow-up implementation [PM-2026-04-14] [ci skip] 2026-04-14 18:09:11 +00:00
runbooks feat: add per-database backups for PostgreSQL and MySQL 2026-04-14 22:39:33 +00:00
README.md add architecture documentation for all infrastructure subsystems [ci skip] 2026-03-24 00:55:25 +02:00

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 TrueNAS NFS, democratic-csi, 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