A1: Test -k assertion now checks use_k:+-k syntax (actual bash pattern)
A2: PVE_NODES assertions now count expected nodes and verify exact array size
A3: Test now asserts liveness behavior (PVE_API_LIVENESS=1) not source text
B1: disk-gc GC schedule corrected: cron runs pbs-gc.sh (not proxmox-backup-manager),
schedule is 20:00 LOCAL (00:00 UTC, not 20:00 UTC), host timezone America/New_York
B2: PROBE SHAPE now documents actual output shape including TLS flag notes
C1: TLS kind is now printed in PVE API failure output
C2: SSH retry logic clarified - retry is in probe_http function (not unreachable)
HOST-RED on media volumes says 'capacity decision — owner to decide' not
'immediate owner attention'. Media volumes are report-only at all levels; the
urgency language was misleading. PBS datastore and host-root get the immediate
attention wording.
Closes the welcome-back proposal: 'how the disk-gc check should classify a
media volume so HOST-RED stops meaning nothing.'
The 20:00 UTC PBS GC cron (proxmox-backup-manager datastore prune)
applies only to /tank/pbs-backup (pbs-datastore). It does NOT touch
media volumes (/media/*) which are report-only at all threat levels.
This clarification prevents the recurring confusion where a 96% media
volume triggers a GC expectation, when the GC schedule never applies
to it.
Closes the 2026-09-17 correction: 'the GC schedule is now 20:00 UTC,
protects the backup datastore, NOT the nearly-full media volume.'
The state file is runtime state (rewritten every scan), so tracking it in git
means:
- every executor's clone becomes permanently dirty after one run
- a scan in one clone produces a merge conflict with a scan in another
- the committed baseline can be stale in a way nobody notices
Added to .gitignore and removed from the index. Contract updated to say
'the state file lives at <abs path> and is gitignored runtime state - the
scanner creates it on first run'.
The contract said the state file was written after every scan, but the script
had no state-file logic at all. This PR adds:
1. Host filesystem scanning (probe_host_filesystems) - probes df on all PVE nodes
2. State file I/O (read_state_file/write_state_file) - absolute path from script location
3. Band classification (classify_band) - HOST-WARN/AMBER/RED thresholds
4. Transition detection (detect_transitions) - alerts on escalation/recovery
5. CLI flags (--hosts-only, --guests-only) to control which parts run
The contract now specifies the state file path resolves from the script's own
location (not CWD-relative), so two different execution contexts cannot write
to two different places.
A volume alerts ONCE when it enters a higher band (GREEN->WARN, WARN->AMBER,
AMBER->RED) and ONCE when it drops back down (recovery notice). While it stays
in the same band, it is reported in the scan output only — no DM, no channel
alert. This stops the same 96% easystore2 from re-DMing the owner on every 6h
scan.
State lives in a small JSON state file (state/host-disk-bands.json), keyed by
host/volume -> last-seen band. The scanner reads the prior band, compares to the
current band, and DMs only on a transition; the state file is written after
every scan. Chosen over a periodic digest because the scan already runs every
6h and a transition is genuinely new, actionable state.
First-run behavior: when the state file does not yet exist, the current band of
every volume is recorded as baseline WITHOUT alerting — a first run would
otherwise DM every already-elevated volume at once.
Report-only restriction and volume-naming output kept exactly as-is.
Add separate threat bands for HOST filesystems (distinct from guest bands):
- HOST-WARN at 85%: name volume + % + absolute free space in scan output
- HOST-AMBER at 90%: flag for owner attention, Zulip DM
- HOST-RED at 95%: flag for immediate owner attention, Zulip DM + channel alert
Volume naming rule: every host line MUST name the volume and what lives on it.
Action classes by volume type:
- host-root: near full = real risk (backup staging, thin-pool metadata)
- media (/media/*): near full = capacity decision for owner, never auto-delete
- pbs-datastore (tank): near full = breaks Proxmox Backup Server
Report-only restriction: no automatic deletion of media or datastore content ever.
Justification (measured 2026-09-15): storepve /media/easystore2 at 96% was
reported but never banded or acted on. Two incidents this weekend showed the
host filesystem is the thing that breaks, not the guest's.
Added HOST-WARN/AMBER/RED alert templates.
Added report-only execution rule for host filesystems.
CT 111 (tdunna, 192.168.68.129) is Theo's box and is report-only per the captain
(2026-08-17, re-confirmed 2026-09-10). The contract defined AMBER as 'GC scheduled
for next run' and its Execution loop called gc-executor for EVERY threat with no
guest-level exclusion - so a single AMBER reading there would have scheduled apt
clean / journal vacuum / log+tmp deletion against someone else's box. The only
marker was frontmatter report_only_agents, which names an AGENT while the scan unit
is a GUEST.
- Gate the Execution loop on a guest/host-keyed report_only_guests block (guest id,
hostname and IP all match); an excluded guest is alerted and skipped, so no
gc-executor call is constructed for it at any level.
- Carry the ruling in the contract body next to the loop, not only in frontmatter.
- scripts/disk-gc-plan.py: executable planner that reads the contract's
authoritative exclusion block and emits the action plan; tests/ covers it.
- Correct the stale fleet map against pvesh /cluster/resources: CT 105 -> amdpve
(was minipve), CT 111 -> storepve (was amdpve), add guests 118/119/120, and fix
the '15 CTs' counts (20 guests: 17 LXC + 3 QEMU VMs).
- scripts/pct-run.sh: same stale map (105/111 wrong node, 120 missing) - this is
why pct-run 111/105 failed.
- Fold in disk-gc-ct100-probe-gap-20260911: CT 100 verifiably works through
pct-run now that the map is correct; documented that the scanner must probe it
like any other guest, never via a local-only path (the scanner runs inside CT 100).
root