Smoke caught this: ProtectSystem=full mounts /usr read-only so the
agent couldn't write its own .new staging file or atomic-rename over
the running binary. Adding /usr/local/bin to ReadWritePaths is the
minimum diff that lets self-update work; the whole-dir grant is
required because os.Rename needs write on the parent directory.
- Add ?updates=behind query filter and the matching dashboardFilter
field; round-trips through encode/parse.
- Compute UpdatesBehind on the dashboard view-model (online + version
trailing the server) and surface as an amber hero tile that links
to the filtered list.
- Test exercise covering the new filter case.
- Surface UpdateAvailable + TargetVersion on the dashboard host row,
the host_chrome header, and the JSON Host shape.
- New host_update_chip partial renders an amber out-of-date pill
next to the agent-version display when the host's agent trails
the server.
- Host detail right-rail gains an admin-only Update agent button
(disabled when host is offline or already updating).
- New .update-chip and .btn-amber CSS tokens; tailwind output
refreshed.
- POST /api/fleet/update, POST /api/fleet-updates/{id}/cancel,
GET /api/fleet-updates/{id} (admin-only).
- GET /settings/fleet-update + /partial for htmx polling.
- Renders idle / running / terminal states with per-host progress.
- Tests cover happy path, derive-host-ids, conflict, cancel, get,
and RBAC.
- alert: update_failed (per-host, dedup=hostID) + fleet_update_halted
(system-scoped, host_id NULL via new RaiseOrTouchSystem helper).
- ws: UpdateWatcher tracks in-flight command.update dispatches and
reconciles them against incoming hello envelopes — success path
marks the job succeeded and auto-resolves the alert; 90s timeout
marks the job failed and raises update_failed.
- http: POST /api/hosts/{id}/update (admin-only JSON) + the HTMX
/hosts/{id}/update form variant. Pre-checks: host exists, online,
agent_version != current, no running update job. Refactored core
into Server.dispatchHostUpdate so the fleet worker can share it
without going through HTTP.
- fleetupdate: rolling worker iterating through host slots, halting
on first failure and raising fleet_update_halted. Polling-based
version-match (re-read hosts.agent_version every 1s up to 95s) —
no extra plumbing into the WS hello path. At-most-one-running is
enforced at the store layer (ErrFleetUpdateRunning).
- cmd/server: wire UpdateWatcher and FleetWorker into the main
goroutine; the worker uses a small serverDispatcher adapter that
delegates back into Server.DispatchHostUpdate.
Tests: watcher (success/timeout/mismatch/late-hello), HTTP endpoint
(happy + four pre-check branches + RBAC), worker (two-host happy,
timeout-halt, host-offline-halt, already-at-target skip, cancel
mid-run, double-Start guard).
steve