infra/docs
Viktor Barzin c91fa881e6
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docs: design + ADR-0019 — free backup MX via Roller Network secondary MX
Viktor wants inbound email to survive homelab outages without loss;
delayed delivery is acceptable and the budget is zero, which rules out
the previously doc-flagged Dynu option. Design adopts Roller Network's
free Secondary MX (3-week store-and-forward queue, no forced filtering,
catch-all-compatible) with our-side postscreen/rspamd whitelisting,
five validation gates before any DNS change, and a live failover test.
Also records the dangling-MTA-STS finding (TXT published, policy host
absent) as a follow-up. Implementation starts only after Viktor reviews
these docs; account will use rollernet@viktorbarzin.me.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-04 09:59:16 +00:00
..
adr docs: design + ADR-0019 — free backup MX via Roller Network secondary MX 2026-07-04 09:59:16 +00:00
architecture mailserver docs: troubleshooting entry for the postsrsd 100%-CPU spin 2026-07-03 14:39:13 +00:00
benchmarks fix: restore tree dropped by 6d224861; land stem95su gdrive-sync (10m) [ci skip] 2026-06-09 08:45:33 +00:00
plans docs: design + ADR-0019 — free backup MX via Roller Network secondary MX 2026-07-04 09:59:16 +00:00
post-mortems devvm containment: drop the MemoryHigh throttle band, straight to MemoryMax OOM 2026-07-02 16:59:38 +00:00
runbooks vault-token-renew runbook: document the self-heal behavior 2026-07-03 20:20:44 +00:00
known-issues.md fix: restore tree dropped by 6d224861; land stem95su gdrive-sync (10m) [ci skip] 2026-06-09 08:45:33 +00:00
README.md fix: restore tree dropped by 6d224861; land stem95su gdrive-sync (10m) [ci skip] 2026-06-09 08:45:33 +00:00

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