The scheduler could only ever see cfg.Backup.BackupTarget(), so the offsite
tier's archives were never candidates — which is why demo-hp's DR tier reported
'applied' with zero snapshots for five days and nobody noticed.
Selection: oldest-first (operator ruling, Option 1). Never-proven sorts first,
which is where the offsite tier starts. Ties break on target id so ordering is
deterministic rather than following Go's randomised map order. Rotation credit
only on SUCCESS — a permanently failing tier must keep sorting first, not look
freshly proven and stop being retried.
- backup.RestoreTestState: persisted last-success per tier (atomic tmp+rename).
This genuinely needs persistence unlike R-84: R-84 had ground truth to consult
(the archive is still on the storage), whereas a restore-test destroys its
scratch and leaves no artifact. Corrupt/missing file -> 'nothing proven'.
- backup.InFlight: host-wide one-heavy-op gate shared with the local-API backup
path. A LINK concern, not a lock one — an offsite restore pulls multi-GB over
the same tunnel a backup pushes one, and at ~33 MB/min both drift toward
timeout, which is how a healthy tier gets recorded as failed. Callers DEFER,
never cancel.
- PickRestoreCandidateOn: newest archive on a named tier; '' is not an error, or
every fresh box looks broken for its first week.
- An empty tier is skipped and the next tried; it cannot starve, since it is
still least-recently-proven once it has an archive.
- POST /backup joins the gate (409 naming the holder).
Red-proofs A/E/F observed with the documented text. Full suite green (29
packages, rc=0).
SchedulerOptions.Spec was a VALUE produced by an immediately-invoked function
at daemon start, so storageTier() and restoreTaskTimeout() were evaluated once
and reused for every run for the process lifetime. Nothing tier-varying was
expressible (the offsite tier could never be scheduled), and it was a latent
staleness bug besides: a storage-type or config change did not take effect
until restart.
- backup.SpecBuilder: func(ctx, archive) RestoreTestSpec, called once per run.
The archive is passed because the tier MUST come from it (v0.100.0 rule) —
config-derived is what classified a PBS archive as 'local' and killed a
14.46 GB WAN restore at the 10-minute local bound.
- A nil spec builder SKIPS loudly instead of panicking: a wiring bug must cost a
restore-test, never the daemon goroutine.
Red-proof observed. Full suite green (29 packages, rc=0).
Fixes the crying-wolf false-fail surfaced by the live hub-enrollment runbook:
PVE's guest-start task exits "WARNINGS: 1" for the benign systemd-nesting
advisory, and WaitTask treated any non-OK exitstatus as failure, so the verdict
was decided by an advisory exit code before the real boot check ran. Every
modern-distro restore-test reported pass:false.
- proxmox.WaitOptions.AllowWarnings (opt-in; default keeps all callers strict)
- restore-test start step accepts warnings, surfaces them, verdict stays waitRunning
- RestoreTestResult.StartWarnings/.WarningsRecognized + version-free "enable
nesting" recognizer (can't rot back at systemd 258+); GuestAPI.TaskLogTail
- hub.RestoreTest.warnings/.warnings_recognized wire fields (consumed by hub v0.7.5)
- scheduler logs clean / passed-with-recognized / passed-with-unrecognized warnings
- tests: WaitTask warnings matrix; restore-test pass/fail-on-liveness; version-free
regression guard (systemd 256-300)
Single agent bump 0.6.0 -> 0.7.0 covering the agent half of both task phases.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>