internal/stacks/migrate.go: crash-safe, resumable namespace migration over the
controller's /mnt RW mount. Two entry points (whole-namespace + per-app) share one
journaled pipeline: validate -> stop -> copy (rsync -a --checksum, additive; conflict-
merge walk for non-app content) -> verify -> flip+redeploy (RedeployFromEnv) -> cleanup.
CLEANUP (the only destructive step) is gated on all units verified AND all apps
redeployed. Single-flight; mutual exclusion with the backup orchestrator (Change 3).
Non-hollow tests incl. mutation-proven collision + cleanup-gate companions.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Part A of the UI-fixes/storage-spike spec.
A1: enrichHostStorageTargets sorts /api/host-metrics storage_targets
server-side and attaches friendly Hungarian labels + purpose, fixing the
#host-storage-bars reorder-on-poll bug. Display labels only — PVE storage
ids are never renamed.
A2: new GET/POST /stacks/{name}/backup Tier-2 config panel; the "2. mentés"
Beállítás button is repointed there from the dead-end deploy page. Customer
can pin a target drive or disable Tier 2; preference is preserved across the
runner's status writes. Always visible (single-SSD + non-HDD apps included).
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Tier 2 rsync-mirrors each HDD app's recovery unit + appdata to a DIFFERENT physical
disk (the only off-drive protection bind-mounted userdata can get; PBS can't reach it).
Auto-enabled, auto-target: prefer another registered drive (different physical disk via
system.SamePhysicalDevice), else the internal SSD for SMALL units only — with a
size-aware headroom guard that REFUSES rather than fill the ~8G guest rootfs, recording
an honest "needs 2nd HDD" status. Status persisted via the surviving CrossDriveBackup;
"2. mentés" UI card now populated. Daily tier2-backup job + POST /api/backup/tier2.
- backup/tier2.go (engine+selection+headroom), tier2_test.go (headroom arithmetic)
- system.SamePhysicalDevice (linux Stat_t.Dev + stub)
- handlers.go Tier2 UI population + tier2DestLabel; backups.html honest no-target reason
- fixed stale TestBackupCopiesOnPath (old felhom-data layout -> in-guest layout)
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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