The global rate limit (10 req/s, 50 burst) was too aggressive for HA
dashboards that load 30+ JS files on page load, causing 429s. VPN tunnel
blips between London K8s and Sofia caused 502s with no retry fallback.
- Add traefik-retry middleware to reverse-proxy factory (all services)
- Add skip_global_rate_limit variable to both reverse-proxy factories
- Create ha-sofia-rate-limit middleware (100 avg, 200 burst)
- Apply to ha-sofia and music-assistant (both route to Sofia)
The Terraform Helm provider's YAML diff comparison silently ignores rules
containing {{ $labels.job }} in annotations, preventing the alerts from being
applied. Also syncs alerts to platform stack tpl.
- Auth-proxy fallback now sets ALL X-authentik-* headers (username, uid,
email, name, groups) to prevent client-supplied header spoofing when
Authentik is down. Previously only username was set, allowing a malicious
client to inject fake X-authentik-groups.
- Catch-all IngressRoute restricted to *.viktorbarzin.me only. Non-matching
domains no longer get the wildcard cert served (TLS info leak).
- Added rate-limit and CrowdSec middleware to catch-all IngressRoute.
- Added rate-limit middleware to Headscale DERP IngressRoute.
- Rotated auth-proxy basicAuth credentials (bcrypt cost 5 → 12, admin → emergency-admin).
- Created Authentik brute-force reputation policy (threshold -5, IP+username).
- Migrate technitium-secondary-config from NFS to proxmox-lvm PVC
- Change secondary strategy from RollingUpdate to Recreate (RWO)
- Bootstrap encrypted state for insta2spotify and ebooks stacks
- Import servarr sub-module PVCs and reconcile state
Add proxmox-lvm PVCs with pvc-autoresizer annotations for all
SQLite-backed services. Deployments updated to use new block storage
PVCs. Old NFS modules retained for 1-week rollback.
Services: ntfy, freshrss, insta2spotify, actualbudget (x3),
wealthfolio, navidrome (DB only), audiobookshelf config,
headscale, forgejo, uptime-kuma.
Also: set Recreate strategy on ntfy, forgejo, insta2spotify,
wealthfolio (required for RWO volumes).
Cluster doesn't have cert-manager installed. Use self-signed certificate
for the controller and disable the PVC mutating webhook (annotations are
set directly on PVCs via Terraform).
Deploy topolvm/pvc-autoresizer controller that monitors kubelet_volume_stats
via Prometheus and auto-expands annotated PVCs. Annotated all 9 block-storage
PVCs (proxmox-lvm) with per-PVC thresholds and max limits. Updated PVFillingUp
alert to critical/10m (means auto-expansion failed) and added PVAutoExpanding
info alert at 80%.
- Migrate ebooks-calibre-config-iscsi (2Gi, 2380 files) to proxmox-lvm
- Update docs/architecture/storage.md: document Proxmox CSI as primary
block storage, mark democratic-csi iSCSI as deprecated
- Add full migration plan to docs/plans/
When the pull-through proxy (10.0.20.10) is down, containerd now falls
back to the official upstream registries (registry-1.docker.io, ghcr.io)
instead of failing. Also cleans up stale disabled registry mirror dirs
and removes unnecessary containerd restart from the rollout script.
The cleanup-tags.sh + garbage-collect cycle can delete blob data while
leaving _layers/ link files intact. The registry then returns HTTP 200
with 0 bytes for those layers, causing "unexpected EOF" on image pulls.
fix-broken-blobs.sh walks all repositories, checks each layer link
against actual blob data, and removes orphaned links so the registry
re-fetches from upstream on next pull.
Schedule: daily at 2:30am (after tag cleanup) and Sunday 3:30am
(after garbage collection). First run found 2335/2556 (91%) of
layer links were orphaned.
Caretta eBPF DaemonSet was using 600Mi x 5 nodes = 3Gi total for
non-critical network topology visualization. Removing it to free
memory for novelapp and aiostreams which were stuck in Pending.
CWA NETWORK_SHARE_MODE=true skips post-import chown, leaving files as
root. book-search now mounts the library to periodically fix permissions
on recently imported books.
Adds stacks-config volume mount to book-search pod so it can delete
Stacks history entries and force re-downloads when a book was consumed
by CWA but failed to import.
The init container was cloning the dotfiles repo via git on every pod
start, causing 200+ small NFS writes that amplified through ZFS.
Dotfiles already exist on NFS from a previous clone — no need to
re-clone on every restart. To update dotfiles, run git pull manually.
Also cleaned up stale Uptime Kuma files (1.6GB old SQLite DB + 289MB
error log left over from migration to MariaDB).
- API_KEY env var from calibre-secrets for /api/download-url auth
- SHORTCUT_ICLOUD_URL env var for /shortcut redirect
- Separate ingress for /api/download-url and /shortcut (bypasses Authentik)
HA frontend loads 30-50 JS bundles on page load, exhausting the burst.
iOS Companion app reconnections also trigger bursts. 172 rate-limited
(429) requests found in Traefik logs causing intermittent connectivity
failures for ha-sofia iOS app.
- Remove viktorbarzin.me from split DNS (same IPs as public DNS,
was adding unnecessary tunnel overhead for every DNS query)
- Narrow reverse DNS split scope from 10.0.0.0/8 → 10.0.20.0/24
and 10.0.10.0/24 only; 192.168.0.0/16 → 192.168.1.0/24 only
- Add extra_records for key internal services (technitium, k8s-master)
for instant MagicDNS resolution without tunnel roundtrip
- Replace full Tailscale DERP map (29 regions) with curated set:
home + 8 European + 5 global fallback DERPs (14 total)
- Add custom derp.yaml to ConfigMap, sourced from Vault
Port 80 DERP dropped — Traefik's global HTTP→HTTPS redirect
prevents non-TLS DERP upgrades on the web entrypoint.
- linkwarden: add Reloader match annotation to DB secret so pods
auto-restart on Vault credential rotation (was causing 100% 5xx)
- authentik: increase memory limits (server 1Gi→1.5Gi, worker 896Mi→1Gi)
to prevent OOM kills
- prometheus: drop 113k high-cardinality series to reduce HDD write rate
from ~8.8 to ~6.0 MB/s (31% reduction):
- drop all traefik/apiserver/etcd histogram bucket metrics
- drop goflow2_flow_process_nf_templates_total (9.3k series)
- drop container_tasks_state and container_memory_failures_total
- rewrite HighServiceLatency alert to use avg latency (_sum/_count)
- update cluster_health dashboard to match
- raise KubeletRuntimeOperationsLatency threshold from 30s to 60s
- Add SQLite backup CronJob (every 6h to NFS for cloud sync pickup)
- Move headscale-ui secrets (COOKIE_SECRET, ROOT_API_KEY) from hardcoded
values to Vault-managed secrets
- Add DERP IPv6 address (2001:470:6e:43d::2) for IPv6-capable clients
- Clean up stale test nodes, duplicate users, rename "localhost" nodes
Also updated headscale_config in Vault to include DERP ipv6 field
and headscale_ui_cookie_secret/headscale_ui_api_key secrets.
CrowdSec, rate limiting, anti-AI, and error pages middlewares were
interfering with the Upgrade: DERP protocol handshake. Also updated
Headscale ACL in Vault to allow tailnet DNS traffic to Technitium
(10.0.20.200:53).
NFS PVs report the entire NFS server filesystem usage (e.g., navidrome-music
shows 5.3 TiB Synology volume at 97%), not PVC-specific usage. Filter out
PVs with >1TiB capacity (always NFS mounts; iSCSI PVCs are 10-50Gi).
Stagger token periods across roles (7d/8d/9d/10d) to prevent
bulk lease revocation storms that caused transient 504s.
Periodic tokens auto-renew indefinitely, eliminating mass expiry.
- Remove ClusterMemoryRequestsHigh, ContainerNearOOM, NodeLowFreeMemory,
NodeMemoryPressureTrending — all fire regularly due to intentional
memory overcommit and are not actionable
- Keep ContainerOOMKilled (actionable — container actually died)
- Raise HighServiceLatency p99 threshold from 10s to 30s to ignore
transient spikes
Both services migrated to unified ebooks namespace. Remove:
- Old stack directories and Terraform state
- calibre references from monitoring namespace lists
- calibre/audiobookshelf from operational scripts
- Delete servarr/audiobook-search TF module (moved to ebooks/book-search)
- Remove audiobook-search from cloudflare_proxied_names
- Remove commented-out module reference in servarr/main.tf
- Clean up "renamed from" comment in ebooks/main.tf
- K8s resources (deploy/svc/ingress) deleted from servarr namespace
- Cloudflare DNS record already absent
- Import book-search and insta2spotify DNS records into cloudflared state
- New ebooks namespace with CWA, Stacks, Audiobookshelf, book-search
- book-search (renamed from audiobook-search) with CWA ingest volume
- Comment out audiobook_search module from servarr
- All NFS volumes and secrets consolidated
