infra/docs
Viktor Barzin 6cb823e431
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k8s-version-upgrade: complete autonomy P0 — blocked alert + deeper postflight + runbook
Builds on the compat gate (prev commit) to finish "auto-upgrade when safe, halt +
alert when not":
- monitoring: K8sUpgradeBlocked alert (k8s_upgrade_blocked==1, for 10m, warning)
  in the Upgrade Gates group — the clean "a k8s auto-upgrade was refused, see
  Slack for why" signal. (Until monitoring is applied, a block still surfaces via
  the already-live K8sUpgradeChainJobFailed.)
- upgrade-step.sh phase_postflight: deeper post-upgrade smoke tests —
  apiserver /readyz + /livez, in-cluster DNS (resolve kubernetes.default), and
  core kube-system pods (apiserver/controller-manager/scheduler/etcd/coredns)
  Running. Any failure halts + alerts (exit 1; no rollback — kubeadm can't
  downgrade). Catches a "pods look Running but cluster is broken" upgrade.
- runbook: documents the compat gate, the blocked alert, how to clear a block,
  matrix maintenance, and the detector minor-probe fix.

After deploy, the nightly chain detects 1.35 (minor detection now works) and
correctly BLOCKS on Calico 3.26 / ESO 0.12 / kyverno 1.16 (all behind), alerting
via K8sUpgradeBlocked — the autonomy working as designed until the catch-up
clears those addons.
2026-06-19 11:27:17 +00:00
..
adr homelab: v0.4.0 — ci/deploy verbs (watch what you trigger) 2026-06-19 10:59:14 +00:00
architecture monitoring: RpiSofiaUndervoltage alerts on new brown-out, not until reboot 2026-06-19 08:45:39 +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 Merge remote-tracking branch 'origin/master' into wizard/reconcile-mirror 2026-06-16 22:32:43 +00:00
post-mortems Merge remote-tracking branch 'origin/master' into wizard/reconcile-mirror 2026-06-16 22:32:43 +00:00
runbooks k8s-version-upgrade: complete autonomy P0 — blocked alert + deeper postflight + runbook 2026-06-19 11:27:17 +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