4e88298976
The first apply of the signin-speedup change triggered a ~50min authentik outage (and a shared CNPG primary failover): the helm chart pin (2026.2.2) silently DOWNGRADED the Keel-managed live image (2026.2.4) against an already-migrated DB, default liveness probes kill-looped pods queuing on authentik's migration advisory lock, and kills mid-migration left ghost idle-in-transaction sessions holding that lock. Full analysis in docs/post-mortems/2026-06-10-authentik-downgrade-boot-storm.md. Hardening (all root causes): - values.yaml: pin global.image.tag to the Keel-managed live tag (2026.2.4) so helm applies can never downgrade under Keel again - values.yaml: server livenessProbe 6x10s/5s (was chart-default 3x10s/3s) - values.yaml: REMOVE AUTHENTIK_POSTGRESQL__CONN_MAX_AGE (session-mode pgbouncer pins persistent conns 1:1 -> pool saturation, 58s/s waits) - pgbouncer.ini: idle_transaction_timeout=300 reaps ghost lock holders; pgbouncer.tf gets a config-checksum annotation so ini changes roll pods - authentik_provider.tf: drop the completed import stanza (adoption rule) - traefik: suppress pre-existing keel.sh annotation/tier-label drift on auth-proxy/bot-block/x402/error-pages deployments (KEEL_LIFECYCLE_V1 pattern) so applies stop stripping live Keel state Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> |
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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
- Review the Overview for a high-level understanding
- Read the Networking doc to understand connectivity
- Check Compute for resource management patterns
- Explore individual architecture docs based on your area of interest