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Viktor Barzin b6cd83f85a [redis] Phase 3-7: cutover to redis-v2, Nextcloud HAProxy-only 
Phase 3 — replication chain (old → v2):
 - Discovered the v2 cluster was running redis:7.4-alpine, but the
   Bitnami old master ships redis 8.6.2 which writes RDB format 13 —
   the 7.4 replicas rejected the stream with "Can't handle RDB format
   version 13". Bumped v2 image to redis:8-alpine (also 8.6.2) to
   restore PSYNC compatibility.
 - Discovered that sentinel on BOTH v2 and old Bitnami clusters
   auto-discovered the cross-cluster replication chain when v2-0
   REPLICAOF'd the old master, triggering a failover that reparented
   old-master to a v2 replica and took HAProxy's backend offline.
   Mitigation: `SENTINEL REMOVE mymaster` on all 5 sentinels (both
   clusters) during the REPLICAOF surgery, then re-MONITOR after
   cutover. This must be done on the OLD sentinels too, not just v2 —
   they're the ones that kept fighting our REPLICAOF.
 - Set up the chain: v2-0 REPLICAOF old-master; v2-{1,2} REPLICAOF v2-0.
   All 76 keys (db0:76, db1:22, db4:16) synced including `immich_bull:*`
   BullMQ queues and `_kombu.*` Celery queues — the user-stated
   must-survive data class.

Phase 4 — HAProxy cutover:
 - Updated `kubernetes_config_map.haproxy` to point at
   `redis-v2-{0,1,2}.redis-v2-headless` for both redis_master and
   redis_sentinel backends (removed redis-node-{0,1}).
 - Promoted v2-0 (`REPLICAOF NO ONE`) at the same time as the
   ConfigMap apply so HAProxy's 1s health-check interval found a
   role:master within a few seconds. Cutover disruption on HAProxy
   rollout was brief; old clients naturally moved to new HAProxy pods
   within the rolling update window.
 - Re-enabled sentinel monitoring on v2 with `SENTINEL MONITOR
   mymaster <hostname> 6379 2` after verifying `resolve-hostnames yes`
   + `announce-hostnames yes` were active — this ensures sentinel
   stores the hostname (not resolved IP) in its rewritten config, so
   pod-IP churn on restart doesn't break failover.

Phase 5 — chaos:
 - Round 1: killed master v2-0 mid-probe. First run exposed the
   sentinel IP-storage issue (stored 10.10.107.222, went stale on
   restart) — ~12s probe disruption. Fixed hostname persistence and
   re-MONITORed.
 - Round 2: killed new master v2-2 with hostnames correctly stored.
   Sentinel elected v2-0, HAProxy re-routed, 1/40 probe failures over
   60s — target <3s of actual user-visible disruption.

Phase 6 — Nextcloud simplification:
 - `zzz-redis.config.php` no longer queries sentinel in-process —
   just points at `redis-master.redis.svc.cluster.local`. Removed 20
   lines of PHP. HAProxy handles master tracking transparently now
   that it's scaled to 3 + PDB minAvailable=2.

Phase 7 step 1:
 - `kubectl scale statefulset/redis-node --replicas=0` (transient —
   TF removal in a 24h follow-up). Old PVCs `redis-data-redis-node-{0,1}`
   preserved as cold rollback.

Docs:
 - Rewrote `databases.md` Redis section to reflect post-cutover reality
   and the sentinel hostname gotcha (so future sessions don't relearn it).
 - `.claude/reference/service-catalog.md` entry updated.

The parallel-bootstrap race documented in the previous commit is still
worth watching — the init container now defaults to pod-0 as master
when no peer reports role:master-with-slaves, so fresh boots land in
a deterministic topology.

Closes: code-7n4
Closes: code-9y6
Closes: code-cnf
Closes: code-tc4

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-04-19 16:13:43 +00:00
..
_template [infra] Establish KYVERNO_LIFECYCLE_V1 drift-suppression convention [ci skip] 2026-04-18 14:15:51 +00:00
actualbudget [infra] Sweep dns_config ignore_changes across all pod-owning resources [ci skip] 2026-04-18 21:19:48 +00:00
affine [multi] Sweep Kyverno wait-for redis annotations to redis-master 2026-04-19 12:44:46 +00:00
authentik [authentik] Phase 1 hardening — 3 replicas, PgBouncer PDB/probes, perf env 2026-04-19 11:52:41 +00:00
beads-server [beads-server] Auto-dispatch agent beads via CronJobs 2026-04-18 22:35:46 +00:00
blog [infra] Sweep dns_config ignore_changes across all pod-owning resources [ci skip] 2026-04-18 21:19:48 +00:00
broker-sync broker-sync: chown fidelity_storage_state to broker uid in init container 2026-04-18 23:22:43 +00:00
calico [infra] Partial Calico adoption: namespaces only (Wave 5b) 2026-04-18 22:52:56 +00:00
changedetection [infra] Sweep dns_config ignore_changes across all pod-owning resources [ci skip] 2026-04-18 21:19:48 +00:00
city-guesser [infra] Sweep dns_config ignore_changes across all pod-owning resources [ci skip] 2026-04-18 21:19:48 +00:00
claude-agent-service [claude-agent-service] Add WOODPECKER_API_TOKEN + SLACK_WEBHOOK_URL env vars 2026-04-19 13:23:12 +00:00
claude-memory [infra] Sweep dns_config ignore_changes across all pod-owning resources [ci skip] 2026-04-18 21:19:48 +00:00
cloudflared [mailserver] Route DMARC rua/ruf to dmarc@viktorbarzin.me [ci skip] 2026-04-18 23:49:14 +00:00
cnpg [infra] Suppress Goldilocks vpa-update-mode label drift on all namespaces [ci skip] 2026-04-18 21:15:27 +00:00
coturn [infra] Sweep dns_config ignore_changes across all pod-owning resources [ci skip] 2026-04-18 21:19:48 +00:00
crowdsec [infra] Sweep dns_config ignore_changes across all pod-owning resources [ci skip] 2026-04-18 21:19:48 +00:00
cyberchef [infra] Sweep dns_config ignore_changes across all pod-owning resources [ci skip] 2026-04-18 21:19:48 +00:00
dashy [infra] Sweep dns_config ignore_changes across all pod-owning resources [ci skip] 2026-04-18 21:19:48 +00:00
dawarich [multi] Sweep Kyverno wait-for redis annotations to redis-master 2026-04-19 12:44:46 +00:00
dbaas [infra] Sweep dns_config ignore_changes across all pod-owning resources [ci skip] 2026-04-18 21:19:48 +00:00
descheduler [infra] Suppress Goldilocks vpa-update-mode label drift on all namespaces [ci skip] 2026-04-18 21:15:27 +00:00
diun [infra] Suppress Goldilocks vpa-update-mode label drift on all namespaces [ci skip] 2026-04-18 21:15:27 +00:00
ebook2audiobook [infra] Sweep dns_config ignore_changes across all pod-owning resources [ci skip] 2026-04-18 21:19:48 +00:00
ebooks [infra] Suppress Goldilocks vpa-update-mode label drift on all namespaces [ci skip] 2026-04-18 21:15:27 +00:00
echo [infra] Sweep dns_config ignore_changes across all pod-owning resources [ci skip] 2026-04-18 21:19:48 +00:00
excalidraw [infra] Sweep dns_config ignore_changes across all pod-owning resources [ci skip] 2026-04-18 21:19:48 +00:00
external-secrets [infra] Suppress Goldilocks vpa-update-mode label drift on all namespaces [ci skip] 2026-04-18 21:15:27 +00:00
f1-stream [infra] Sweep dns_config ignore_changes across all pod-owning resources [ci skip] 2026-04-18 21:19:48 +00:00
foolery [infra] Suppress Goldilocks vpa-update-mode label drift on all namespaces [ci skip] 2026-04-18 21:15:27 +00:00
forgejo [infra] Sweep dns_config ignore_changes across all pod-owning resources [ci skip] 2026-04-18 21:19:48 +00:00
freedify [infra] Suppress Goldilocks vpa-update-mode label drift on all namespaces [ci skip] 2026-04-18 21:15:27 +00:00
freshrss [infra] Sweep dns_config ignore_changes across all pod-owning resources [ci skip] 2026-04-18 21:19:48 +00:00
frigate [infra] Sweep dns_config ignore_changes across all pod-owning resources [ci skip] 2026-04-18 21:19:48 +00:00
grampsweb [monitoring] Opt-out external monitor for family/mladost3/task-webhook/torrserver; drop r730 2026-04-19 15:18:27 +00:00
hackmd [infra] Sweep dns_config ignore_changes across all pod-owning resources [ci skip] 2026-04-18 21:19:48 +00:00
headscale [infra] Sweep dns_config ignore_changes across all pod-owning resources [ci skip] 2026-04-18 21:19:48 +00:00
health [infra] Sweep dns_config ignore_changes across all pod-owning resources [ci skip] 2026-04-18 21:19:48 +00:00
hermes-agent [infra] Suppress Goldilocks vpa-update-mode label drift on all namespaces [ci skip] 2026-04-18 21:15:27 +00:00
homepage [infra] Sweep dns_config ignore_changes across all pod-owning resources [ci skip] 2026-04-18 21:19:48 +00:00
immich [redis] Migrate live RW consumers off bare redis.redis hostname 2026-04-19 12:42:36 +00:00
infra [infra] Migrate Terraform state from local SOPS to PostgreSQL backend 2026-04-16 19:33:12 +00:00
infra-maintenance [infra] Sweep dns_config ignore_changes across all pod-owning resources [ci skip] 2026-04-18 21:19:48 +00:00
insta2spotify [infra] Suppress Goldilocks vpa-update-mode label drift on all namespaces [ci skip] 2026-04-18 21:15:27 +00:00
isponsorblocktv [infra] Sweep dns_config ignore_changes across all pod-owning resources [ci skip] 2026-04-18 21:19:48 +00:00
jsoncrack [infra] Sweep dns_config ignore_changes across all pod-owning resources [ci skip] 2026-04-18 21:19:48 +00:00
k8s-dashboard [infra] Suppress Goldilocks vpa-update-mode label drift on all namespaces [ci skip] 2026-04-18 21:15:27 +00:00
k8s-portal [cluster-health] Expand to 42 checks, remove pod CronJob path 2026-04-19 15:13:03 +00:00
kms [infra] Sweep dns_config ignore_changes across all pod-owning resources [ci skip] 2026-04-18 21:19:48 +00:00
kured [infra] Adopt kured + sentinel-gate into Terraform (Wave 5a) 2026-04-18 22:33:29 +00:00
kyverno [multi] Sweep Kyverno wait-for redis annotations to redis-master 2026-04-19 12:44:46 +00:00
linkwarden [infra] Sweep dns_config ignore_changes across all pod-owning resources [ci skip] 2026-04-18 21:19:48 +00:00
local-path [infra] Adopt local-path-provisioner into Terraform (Wave 5c) 2026-04-18 22:39:55 +00:00
mailserver [mailserver] Phase 6 — decommission MetalLB LB path [ci skip] 2026-04-19 12:36:11 +00:00
matrix [infra] Sweep dns_config ignore_changes across all pod-owning resources [ci skip] 2026-04-18 21:19:48 +00:00
meshcentral [infra] Sweep dns_config ignore_changes across all pod-owning resources [ci skip] 2026-04-18 21:19:48 +00:00
metallb [infra] Suppress Goldilocks vpa-update-mode label drift on all namespaces [ci skip] 2026-04-18 21:15:27 +00:00
metrics-server [infra] Suppress Goldilocks vpa-update-mode label drift on all namespaces [ci skip] 2026-04-18 21:15:27 +00:00
monitoring monitoring: split income_tax cash/RSU + add P60 & HMRC reconciliation panels 2026-04-19 15:23:36 +00:00
n8n [infra] Sweep dns_config ignore_changes across all pod-owning resources [ci skip] 2026-04-18 21:19:48 +00:00
navidrome [infra] Sweep dns_config ignore_changes across all pod-owning resources [ci skip] 2026-04-18 21:19:48 +00:00
netbox [infra] Sweep dns_config ignore_changes across all pod-owning resources [ci skip] 2026-04-18 21:19:48 +00:00
networking-toolbox [infra] Sweep dns_config ignore_changes across all pod-owning resources [ci skip] 2026-04-18 21:19:48 +00:00
nextcloud [redis] Phase 3-7: cutover to redis-v2, Nextcloud HAProxy-only 2026-04-19 16:13:43 +00:00
nfs-csi [infra] Suppress Goldilocks vpa-update-mode label drift on all namespaces [ci skip] 2026-04-18 21:15:27 +00:00
nodelocal-dns [dns] NodeLocal DNSCache — deploy DaemonSet to all nodes (WS C) 2026-04-19 15:46:41 +00:00
novelapp [infra] Sweep dns_config ignore_changes across all pod-owning resources [ci skip] 2026-04-18 21:19:48 +00:00
ntfy [infra] Sweep dns_config ignore_changes across all pod-owning resources [ci skip] 2026-04-18 21:19:48 +00:00
nvidia [infra] Sweep dns_config ignore_changes across all pod-owning resources [ci skip] 2026-04-18 21:19:48 +00:00
onlyoffice [multi] Sweep Kyverno wait-for redis annotations to redis-master 2026-04-19 12:44:46 +00:00
openclaw [cluster-health] Expand to 42 checks, remove pod CronJob path 2026-04-19 15:13:03 +00:00
osm_routing [infra] Sweep dns_config ignore_changes across all pod-owning resources [ci skip] 2026-04-18 21:19:48 +00:00
owntracks [owntracks] Strip face avatar from hook payload + drop orphan PVC 2026-04-19 12:05:18 +00:00
paperless-ngx [multi] Sweep Kyverno wait-for redis annotations to redis-master 2026-04-19 12:44:46 +00:00
payslip-ingest payslip-ingest: pin image_tag=4f70681d — includes migrations 0004+0005 2026-04-19 15:54:24 +00:00
phpipam [infra] Sweep dns_config ignore_changes across all pod-owning resources [ci skip] 2026-04-18 21:19:48 +00:00
platform [infra] Add Cloudflare provider to all stack lock files and generated providers 2026-04-16 16:31:36 +00:00
plotting-book [infra] Sweep dns_config ignore_changes across all pod-owning resources [ci skip] 2026-04-18 21:19:48 +00:00
poison-fountain [infra] Sweep dns_config ignore_changes across all pod-owning resources [ci skip] 2026-04-18 21:19:48 +00:00
priority-pass [infra] Suppress Goldilocks vpa-update-mode label drift on all namespaces [ci skip] 2026-04-18 21:15:27 +00:00
privatebin [infra] Sweep dns_config ignore_changes across all pod-owning resources [ci skip] 2026-04-18 21:19:48 +00:00
proxmox-csi [infra] Suppress Goldilocks vpa-update-mode label drift on all namespaces [ci skip] 2026-04-18 21:15:27 +00:00
pvc-autoresizer [infra] Suppress Goldilocks vpa-update-mode label drift on all namespaces [ci skip] 2026-04-18 21:15:27 +00:00
rbac [infra] Migrate Terraform state from local SOPS to PostgreSQL backend 2026-04-16 19:33:12 +00:00
real-estate-crawler [multi] Sweep Kyverno wait-for redis annotations to redis-master 2026-04-19 12:44:46 +00:00
redis [redis] Phase 3-7: cutover to redis-v2, Nextcloud HAProxy-only 2026-04-19 16:13:43 +00:00
reloader [infra] Suppress Goldilocks vpa-update-mode label drift on all namespaces [ci skip] 2026-04-18 21:15:27 +00:00
resume [infra] Sweep dns_config ignore_changes across all pod-owning resources [ci skip] 2026-04-18 21:19:48 +00:00
reverse-proxy [monitoring] Opt-out external monitor for family/mladost3/task-webhook/torrserver; drop r730 2026-04-19 15:18:27 +00:00
rybbit [infra] Sweep dns_config ignore_changes across all pod-owning resources [ci skip] 2026-04-18 21:19:48 +00:00
sealed-secrets [infra] Suppress Goldilocks vpa-update-mode label drift on all namespaces [ci skip] 2026-04-18 21:15:27 +00:00
send [infra] Sweep dns_config ignore_changes across all pod-owning resources [ci skip] 2026-04-18 21:19:48 +00:00
servarr [servarr/mam-farming] Tune grabber for MAM's real catalogue 2026-04-19 15:46:46 +00:00
shadowsocks [infra] Sweep dns_config ignore_changes across all pod-owning resources [ci skip] 2026-04-18 21:19:48 +00:00
speedtest [infra] Sweep dns_config ignore_changes across all pod-owning resources [ci skip] 2026-04-18 21:19:48 +00:00
status-page [infra] Establish KYVERNO_LIFECYCLE_V1 drift-suppression convention [ci skip] 2026-04-18 14:15:51 +00:00
stirling-pdf [infra] Sweep dns_config ignore_changes across all pod-owning resources [ci skip] 2026-04-18 21:19:48 +00:00
tandoor [infra] Sweep dns_config ignore_changes across all pod-owning resources [ci skip] 2026-04-18 21:19:48 +00:00
technitium [dns] readiness gate — replace auth-required zone-count probe with DNS parity check 2026-04-19 15:24:56 +00:00
terminal [infra] Suppress Goldilocks vpa-update-mode label drift on all namespaces [ci skip] 2026-04-18 21:15:27 +00:00
tor-proxy [openclaw,tor-proxy] Opt task-webhook + torrserver out of external monitoring 2026-04-19 13:01:36 +00:00
trading-bot [multi] Sweep Kyverno wait-for redis annotations to redis-master 2026-04-19 12:44:46 +00:00
traefik [infra] Sweep dns_config ignore_changes across all pod-owning resources [ci skip] 2026-04-18 21:19:48 +00:00
travel_blog [infra] Sweep dns_config ignore_changes across all pod-owning resources [ci skip] 2026-04-18 21:19:48 +00:00
tuya-bridge [infra] Sweep dns_config ignore_changes across all pod-owning resources [ci skip] 2026-04-18 21:19:48 +00:00
uptime-kuma [reverse-proxy] Fix gw.viktorbarzin.me — point at 192.168.1.1 via EndpointSlice 2026-04-19 15:07:24 +00:00
url [infra] Sweep dns_config ignore_changes across all pod-owning resources [ci skip] 2026-04-18 21:19:48 +00:00
vault [ci,vault] Fix Tier-1 apply silently failing in Woodpecker 2026-04-19 14:25:52 +00:00
vaultwarden [infra] Sweep dns_config ignore_changes across all pod-owning resources [ci skip] 2026-04-18 21:19:48 +00:00
vpa [infra] Migrate Terraform state from local SOPS to PostgreSQL backend 2026-04-16 19:33:12 +00:00
wealthfolio wealthfolio: add nightly backup sidecar — SQLite → NFS 2026-04-18 22:25:19 +00:00
webhook_handler [infra] Suppress Goldilocks vpa-update-mode label drift on all namespaces [ci skip] 2026-04-18 21:15:27 +00:00
whisper [infra] Sweep dns_config ignore_changes across all pod-owning resources [ci skip] 2026-04-18 21:19:48 +00:00
wireguard [infra] Suppress Goldilocks vpa-update-mode label drift on all namespaces [ci skip] 2026-04-18 21:15:27 +00:00
woodpecker [infra] Sweep dns_config ignore_changes across all pod-owning resources [ci skip] 2026-04-18 21:19:48 +00:00
xray [infra] Sweep dns_config ignore_changes across all pod-owning resources [ci skip] 2026-04-18 21:19:48 +00:00
ytdlp [redis] Migrate live RW consumers off bare redis.redis hostname 2026-04-19 12:42:36 +00:00