infra/docs
Viktor Barzin bc33cd5ac4 monitoring: NodeFilesystemFull 90%->95% + Synology storage runbook
The Synology offsite backup target (/mnt/synology-backup, surfaced via
the PVE host NFS mount) sits at ~94% by design and was firing
NodeFilesystemFull continuously. Per user request, raise the threshold
to 95% (<5% free). NOTE: NodeFilesystemFull is a global node-filesystem
rule, so this also loosens the warning on k8s node/system disks;
BackupDiskFull (sda /mnt/backup) stays at 85%.

Also adds docs/runbooks/synology-storage.md: how to assess Synology
usage WITHOUT du (Storage Analyzer weekly CSVs, df/btrfs/qgroup),
btrfs async/snapshot-pinned reclaim, the 2026-06-05 capacity assessment
(94% full; Backup share 4.42TiB), and ~500GiB of homelab cleanup
candidates (redundant gphotos Takeout, old laptop VM images, archives).

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-06-05 18:18:31 +00:00
..
architecture monitoring: add local-only prometheus-query.lan ingress for ha-sofia SNMP sensors 2026-06-05 17:25:06 +00:00
benchmarks infra/llama-cpp: benchmark report + -fa flag fix 2026-05-10 15:03:16 +00:00
plans monitoring: migrate R730 iDRAC scraping to SNMP (fast primary) + thin Redfish remnant 2026-06-05 16:33:20 +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 monitoring: NodeFilesystemFull 90%->95% + Synology storage runbook 2026-06-05 18:18:31 +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

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