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3 commits

Author SHA1 Message Date
Viktor Barzin
14b1c43713 [ci skip] expand k8s worker nodes to 256G, update inventory and extend script 
- k8s-node2: 128G → 256G (160GB free)
- k8s-node3: 128G → 256G (135GB free)
- k8s-node4: 128G → 256G (127GB free)
- k8s-node1: already 256G (51GB free)
- extend_vm_storage.sh: increase drain timeout to 300s, add --force flag
- Remove Vaultwarden from SQLite migration plan (too risky)
 2026-02-28 16:00:16 +00:00
Viktor Barzin
517acd95af [ci skip] revise storage reliability design based on research agent findings 
Key changes from v1:
- Drop 3-instance replication → 2-instance CNPG, single Redis/MySQL
- Remove Headscale from PG migration (project discourages it)
- Remove MeshCentral from PG migration (NeDB, not SQLite)
- Replace Redis Sentinel with single redis:7 on local disk (modules unused)
- Add RAM overcommit warning and mitigation
- Add explicit single-host limitation acknowledgment
- Add per-component rollback plans
- Fix backup strategy (CNPG can't archive WAL to NFS natively)
- Reorder migration: low-risk services first, authentik last
- Add research gate before each service migration
 2026-02-28 14:38:01 +00:00
Viktor Barzin
415d8704d4 [ci skip] add storage reliability design: DB replication + SQLite consolidation 2026-02-28 14:24:42 +00:00