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[ci skip] update claude knowledge: iSCSI migration for Redis, Prometheus, Loki

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Viktor Barzin 2026-03-06 21:05:21 +00:00
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@ -63,11 +63,10 @@ For platform modules, use `source = "../../../../modules/kubernetes/nfs_volume"`
### iSCSI Storage for Databases
**StorageClass**: `iscsi-truenas` (deployed via `stacks/platform/modules/iscsi-csi/` using democratic-csi).
- Used by: PostgreSQL (CNPG), MySQL (InnoDB Cluster) — any pod, any node, same data
- Used by: PostgreSQL (CNPG), MySQL (InnoDB Cluster), Redis, Prometheus, Loki — any pod, any node, same data
- Driver: `freenas-iscsi` (SSH-based, NOT `freenas-api-iscsi` which is TrueNAS SCALE only)
- ZFS datasets: `main/iscsi` (zvols), `main/iscsi-snaps` (snapshots)
- All K8s nodes have `open-iscsi` + `iscsid` running
- Redis stays on `local-path` (StatefulSet `volumeClaimTemplates` are immutable)
### Adding NFS Exports
1. **Create the directory on TrueNAS first**: `ssh root@10.0.10.15 "mkdir -p /mnt/main/<service> && chmod 777 /mnt/main/<service>"`