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Viktor Barzin 6504911a77 matrix: open (tokenless) registration + bot mitigations + #security alert 
User-chosen fully-open registration on tuwunel (no CAPTCHA support; browser
challenges break native clients). Bot defense is layered instead:
- Traefik rate-limit Middleware on a path-scoped /register ingress carve-out,
  keyed on request Host (GLOBAL /register cap) not source IP — the host is
  reachable via both Cloudflare-IPv4 (CF-Connecting-IP) and IPv6-direct (HE
  tunnel, no CF header), so a per-source key let IPv6 bots bypass. 10/min,
  burst 20, per replica; CrowdSec is the hard backstop on both paths.
- Loki ruler rule MatrixNewUserRegistered -> lane=security -> existing
  #security Slack receiver (matches "registered on this server", never the
  rejection line). tuwunel's admin bot also posts signups to the admin room.

Dropped the REGISTRATION_TOKEN env (secret/matrix + ESO kept for revert).
Applied via scripts/tg (matrix tier-1 + targeted monitoring configmap), so
[ci skip] to avoid CI full-applying monitoring (unrelated grafana-acl drift).

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-06-08 13:27:02 +00:00
..
architecture matrix/authentik: remove orphaned Matrix OAuth2 app + provider (post-tuwunel) 2026-06-08 12:32:49 +00:00
benchmarks infra/llama-cpp: benchmark report + -fa flag fix 2026-05-10 15:03:16 +00:00
plans matrix: open (tokenless) registration + bot mitigations + #security alert 2026-06-08 13:27:02 +00:00
post-mortems immich: set MACHINE_LEARNING_MODEL_TTL 0->600 to stop GPU VRAM hog 2026-06-02 20:16:11 +00:00
runbooks vault-token-renew: version the devvm renewer + user units in the repo 2026-06-07 22:10:06 +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