The per-VM ACL is consumed by the destroy it authorises (PVE remove_vm_access,
LXC.pm:906), so it works once per slot. Fourth root-fenced exception, band-enforced in
sudoers literally + in code + at the caller. API destroy still tried first.
CORRECTION: I earlier reported that the restore-test would boot a scratch guest
with the live guest's MAC/static island IP/hostname and break the control
plane. That was WRONG — RunRestoreTest step 2 link-downs EVERY interface
(withLinkDown, unit-tested) before the guest is ever started. The design
already handled it.
The real, narrower hazard: a restore that fails BEFORE step 2 (what the v0.100.0
wait bug caused) leaves a scratch holding the SOURCE guest's config verbatim,
including onboot:1. If teardown also fails (403 missing VM.Allocate — PVE
associates the pool only at restore completion), a host reboot would start that
leaked clone alongside the original with NICs up.
- proxmox.RestoreLXCOptions.ConfigOverrides: guest-config params applied AT
RESTORE TIME.
- The restore-test passes onboot=0 — at restore time, not after, because
'after' is exactly the path that leaks.
NOT changed: the link-down step (already correct, the primary defence); the
agent's Proxmox privileges (widening VM.Allocate to /vms would remove the
accidental guard that stopped a destructive mid-restore teardown).
restore_test_cadence_seconds was set to -1 on demo-felhom under the mistaken
reading; re-enabled.
Red-proof observed; full suite green (29 packages).
The live validation hit PVE's all-or-nothing restore rule: mpN params
without an explicit rootfs -> HTTP 500 "mount points configured, but
'rootfs' not set" (the same constraint restoretest.go:211 documents for the
live-config path; the spike never ran an override restore). The lost guest
has no live config, so the rootfs SIZE now comes from the archive's own
embedded config via NEW Client.ExtractArchiveConfig (GET vzdump/
extractconfig - verified live: answers 200 under the scoped agent token;
PBS keys stay server-side, the spike's candidate-1 rejection holds; used
for the SIZE ONLY - the bind layout stays the platform constants).
Unparseable/unreadable archive config -> clean refusal before any restore.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01PSK5g6qYLknKj8u3QAFEr6
ModeDRGuestLoss now passes restore-time MountOverrides for the two
platform-constant structural binds (mp8 parent, mp9 bootstrap) via the
shared throwaway-volume format helper - without them a customer-archive
restore under the privsep token fails outright ("restoring 'mp8' to bind
mount is only possible for root"). New post-restore step 4d swaps the real
binds in via the host runner (root pct set, one slot per call), deletes the
displaced unusedN volumes (API config PUT; a scoped-token refusal logs the
residue loudly instead of widening privileges), and respects the
committed/launched rollback envelope. Provision passes nil overrides -
byte-identical behavior (regression contract test).
Engine grows an optional HostRunner + StateDir seam (DR refuses up front
without a runner); selftest bring-up wires the ExecRunner + cleans the
scratch mp9 host dir on teardown; proxmox.GuestConfig.Unused() added.
6 new tests incl. C2 mid-swap rollback + C3 older-archive + 403-warn paths.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01PSK5g6qYLknKj8u3QAFEr6
Pool membership is what lets the pool-scoped token reach a guest; pct restore
--pool sets it only at CREATE, so a restore over an existing VMID drops the guest
from the felhom pool and 403s the next restore-test/DR on VM.Audit. This empty-pool
state is the true root cause of the campaign's "R1" (bind-mount restore failing was
a symptom — restore-test's existing bind neutralization never ran without config-read).
Add Client.PoolAddVMID (PUT /pools, additive+idempotent, Pool.Allocate) and call it
in bring-up after liveness when spec.Pool!="" — warn-not-fail on a hiccup (liveness
wins). B3 scratch-teardown 403 diagnosed as a cascade (restoretest already passes
Pool). Role/ACL untouched. Tests + red-proof.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01PSK5g6qYLknKj8u3QAFEr6
Phase-1 live probe (felhom-hetzner) proved backup/restore/list/isolation over
the tunnel with a per-customer DatastoreBackup token, but the agent's PBS client
was namespace-unaware: Snapshots hit the datastore root (403 for a scoped token)
and Verify was whole-datastore (needs Datastore.Verify ~ admin). Operator-
approved fix.
- pbs.Config.Namespace + Client.namespace; Snapshots appends ?ns=; Verify sends
ns= (ns-scoped verify works with DatastoreBackup on the own ns — no admin
widening, Phase-1 confirmed). Root-ns clients unchanged (whole-datastore).
- proxmox.Storage.Namespace (parsed from /storage `namespace`).
- pbsTargetsFromPVE threads s.Namespace into the client.
Confirmed tenant ACL: DatastoreBackup on /datastore/felhom-offsite/<ns> (NOT
/ns/<ns>) to BOTH felhom@pbs (user) AND felhom@pbs!<ns> (token) — PBS privsep =
intersection; isolation holds (cross-ns 403 proven). TestClient_NamespaceScoping
red-proofed.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01PSK5g6qYLknKj8u3QAFEr6
staleLockController.Guests() = ListLXC ∩ GET /pools/felhom members (ownership
PROVEN via the pool registry, never assumed from enumeration scope); pool-read
failure fail-safes the whole recovery through the existing guest-list guard.
New Client.Pool read (needs Pool.Audit — host-install v1.9.0; Pool.Allocate
does NOT satisfy it, spike T2). Composed pve:pool-read capability (non-critical)
+ --selftest pool-read line. Red-proofed negative tests drive the REAL
controller over a broad-token-shaped fake.
Per SPIKE-a1-pool-membership-read-2026-07-03.md; audit A1
(AUDIT-blast-radius-hostroot-localapi-2026-07-02).
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01PSK5g6qYLknKj8u3QAFEr6
RestoreLXCOptions.Pool → pct restore --pool (omit-when-empty). New
reconcile.DefaultPool="felhom"; BringUpSpec.Pool threaded to the bring-up
restore; BOTH restore sites pool the guest (provision/DR via spec.Pool set to
DefaultPool by the CLI; restore-test scratch via DefaultPool = SPIKE residual
#2). No agent ACL change (ships in host-install v1.6.0); the pool param is inert
until the token has Pool.Allocate + the pool exists, so publishing is safe ahead
of the coordinated swap. Tests + red-proofs; go build/vet/test clean.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
The preventive counterpart to host_disk + storage_fill detectors: the periodic local
whole-guest vzdump now prunes its own old archives (keep-last=3, clamped >=1) so a box
can't refill its own root via its own backups. Local target only — PBS never pruned
(resolved via ListStorage; fail-safe skip on unknown). Seeded in host-install.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01HxLA1mZurFq9kt8hneFeCs
Live test on felhom-pve (PVE 9.2.2) caught GET /nodes/{node}/tasks?running=1
returning HTTP 400 "property not defined in schema". The fail-safe correctly
left the lock, but the BackupRunning guard always errored. source=active is
the supported filter and returns the RUNNING tasks.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_0162BnMpUXscPsUB1cU8Tr6K
F2-b: at startup, recover a guest left with a stale vzdump lock by a
reboot-during-backup — pct unlock -> delete dangling vzdump snapshot ->
start iff onboot, guarded by a no-vzdump-running invariant (fail-safe).
New internal/localapi/stalelock.go; proxmox GuestConfig.Lock()/OnBoot(),
ListSnapshots, ListRunningTasks, Snapshot type. New narrow sudoers grant
FELHOM_STALELOCK (pct unlock) + Critical capability stalelock-unlock.
F2-a: EnsureSharedParent only redeployed the boot script when the UNIT
differed, so the v0.36.6 make-private fix never reached hosts whose unit
was current -> /mnt/felhom-drives stayed in root's shared:1 and doubled
every drive bind. New sharedParentInstallStale compares BOTH script and
unit. Boot-time-only; never churns the live mount.
Both root causes confirmed live on felhom-pve before fixing. Green gate
(build/vet/test) all pass.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_0162BnMpUXscPsUB1cU8Tr6K
writeImage drops bash -c/printf for GuestExecStdin(img+\n -> tee /etc/felhom-controller-image);
new Runner.RunStdin/GuestExecStdin route stdin through the fenced sudo -n runner. 5 narrow,
auditable sudoers grants (no general pct exec, no bash -c) + capability manifest entries (Critical)
so the self-probe watches them and the build-test asserts coverage (companion red-proof). No
controller change; swap orchestration/rollback/state unchanged. Spike GO.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01EPZ4GJ8L5Jqf8UiPwbn1kt
A slice-10 enrolled guest's data drive is a host bind-mount mp0 that the privsep
token can't vzrestore ("bind mount is only possible for root") — so the restore-test
failed for every enrolled guest regardless of backup tier. The restore-test now reads
the source guest config (vmid from the archive volid) and passes RestoreLXC mp
overrides converting each bind-mount mpN to a throwaway 1G volume on the restore
storage (no root needed; boot-verify doesn't need the data). proxmox.RestoreLXC gains
MountOverrides. + unit tests (archiveVMID, bindMountOverrides).
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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>
Spike-proven that backup/restore-to-PBS reuse Phase A unchanged; the only new code is
the verify capability, a small PBS-API client, and PBSSnapshot reporting.
- internal/pbs: fingerprint-pinned, token-authed PBS-API client (Verify/Snapshots/
TaskStatus, node-from-UPID; secret read from /etc/pve/priv/storage/<id>.pw at runtime,
never logged) + the verify maintenance loop (own cadence, default 6h, NOT gated/journaled,
like the watchdog) + SnapshotStore.
- hub: PBSSnapshot filled (namespace/type/id/time/size/owner/protected/encrypted/
verify_state/verify_upid); PBSReporter collector seam; cross-repo golden + bidirectional
key-set tests; hub handler parses pbs_snapshots + logs a failed-verify WARN.
- backup: report the ACTUAL vzdump mode (parsed from the task log; PVE may downgrade
snapshot->stop). proxmox.Storage.Username. config PBSVerifyCadence/secret-dir.
--selftest=pbs-verify. Backup/restore-to-PBS unchanged.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
The slice-6 restore-test teardown failed live: DELETE /lxc/{vmid} with a form body
returns HTTP 501 'Unexpected content for method DELETE', and a booted scratch needs
force=1. Move purge/destroy-unreferenced-disks/force to the query string, send no body.
Regression test locks the contract.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Fill the slice-3 storage_targets stub and add the fast-poll storage watchdog.
Read-only this phase; the host-root surface (mounts/SMART/grow/destructive gate)
is Phase B. Hub-owned desired manifest is slice 10, so reconcile against it is
built-but-unfed.
- internal/storage: StorageTarget wire contract, durable_id derivation per type,
HostReader seam (procfs/sysfs, root-free), Observer (storage_targets from
ListStorage/NodeStorage + host reads, lvmthin thin-pool fill), and the watchdog
(third daemon goroutine; debounced out-of-band report on a known target's
attach/disconnect transition).
- proxmox.Storage: additive parse-only config fields (durable_id sources).
- collector StorageObserver seam; Loop.SetTrigger out-of-band report; daemon runs
the watchdog as a third goroutine; StorageConfig knobs.
- cross-repo golden kept byte-identical with felhom.eu/hub; bidirectional key-set test.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Stand up the felhom-agent project (module gitea.dooplex.hu/admin/felhom-agent,
binary felhom-agent) and the internal/proxmox package: the typed library every
other agent module calls to talk to Proxmox.
- API-first Client (hand-rolled REST over net/http, PVEAPIToken auth) with typed
read ops (version/nodes/status/lxc/config/storage) and async mutating ops
(restore/vzdump/snapshot/rollback/delete-snapshot/setconfig/start/stop), each
returning a UPID. WaitTask polls task status until stopped and asserts
exitstatus OK (authz can surface at task exec, not the POST — phase1-2 §1.3).
- Fenced Privileged (root-CLI) backend for the THREE proven exceptions only
(keyctl pct create, USB mount/fstab, SMART/sensors); each cites why it can't be
the API. Fence is structural (Client never shells out, Privileged never HTTPs)
and asserted in routing_test.go.
- TLS: SHA-256 leaf-cert pinning or CA file; insecure mode explicit + off by
default. No blanket verification disable.
- 403 -> privilege-named APIError; failed task -> privilege-named TaskError.
- JSON config + env overrides (token never logged); slog logging.
- cmd/felhom-agent --selftest (read-only health report) + gated --selftest=task
(reversible snapshot/rollback/delete exercise of WaitTask). No daemon loop yet.
- Types grounded in the spike findings and exact JSON shapes captured live from
demo-felhom (PVE 9.2.2). Unit tests use a mock transport + runner.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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