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Viktor Barzin 6e9bffb1a3 storage docs: document the per-VM SCSI-LUN cap (proxmox-csi) 
The proxmox-csi-plugin hardcodes a 29-disks-per-VM ceiling in
pkg/csi/utils.go:394 (lun < 30 loop). This is the actual block-
storage scaling bottleneck — NOT QEMU, NOT Proxmox, NOT the kernel.

Adds a "Per-VM SCSI-LUN cap" section to docs/architecture/storage.md
explaining:
  - the source-level hardcode and how to recognise it (FailedAttachVolume
    "no free lun found")
  - why switching scsihw to virtio-scsi-single buys ZERO additional
    capacity (perf-only)
  - levers in leverage-per-effort order (migrate non-DB to NFS,
    add a worker, fork+patch the plugin)
  - the Wave 1 NFS migration (2026-05-26) that took 5 services off
    block and skipped two more on pre-flight (plotting-book SQLite+WAL,
    stirling-pdf H2 .mv.db)

Discovered during the Wave 1 work — see remote memory ids 2788+ for
full context and 2798+ for the related postiz state-drift discovery.
2026-05-26 02:56:27 +00:00
..
architecture storage docs: document the per-VM SCSI-LUN cap (proxmox-csi) 2026-05-26 02:56:27 +00:00
benchmarks infra/llama-cpp: benchmark report + -fa flag fix 2026-05-10 15:03:16 +00:00
plans docs: Technitium DNS IP — 10.0.20.101 → 10.0.20.201 2026-05-23 08:53:52 +00:00
post-mortems nvidia: fix driver install deadlock + extend startup probe 2026-05-25 11:53:44 +00:00
runbooks immich: bulk-import Anca's Elements photo archive into her account 2026-05-24 14:12:30 +00:00
known-issues.md docs: known-issues entry for the Ubuntu 26.04 / NVIDIA driver gap 2026-05-17 11:15:26 +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