The full-system updater runs as a detached systemd service and can finish
successfully even when the browser loses its status connection. In that
case the update log and status file correctly report REBOOT_REQUIRED, but
the Hub modal can remain on "Updating..." with its controls disabled.
There were four independent ways for the frontend to get stuck:
* update status fetches had no deadline, so a request that stayed pending
never rejected and never advanced the existing failure counter;
* setInterval started async polls without waiting for the previous poll,
allowing slow requests to overlap and responses to arrive out of order;
* each log chunk used textContent +=, replacing the complete and growing
Nix build log every two seconds, which could stall browser rendering and
was especially visible over RDP; and
* page reload, tab resume, and RDP reconnect did not reattach the modal to
the update status persisted by the backend.
This produced a dangerous UX mismatch: the machine had a fully staged
NixOS generation and was ready to reboot, while the Hub continued telling
the user that the update was still running.
Bound status requests with AbortController, prevent overlapping polls, and
replace the endless spinner after sustained failures with an explicit
"Update status unavailable" state and Retry Status action. Reconcile state
immediately on focus, visibility, online, page startup, and before starting
a new update. Use no-store requests and render verbose logs incrementally
with a bounded visible tail while retaining the complete report in memory.
Apply the same timeout and single-flight protection to rebuild polling.
Record the exact generation produced by `nixos-rebuild boot`. The Hub now
keeps REBOOT_REQUIRED visible until that generation matches
/run/current-system, then clears the marker after reboot. For an update
started by an older updater that did not write the marker, recover the
staged generation from the final nixos-rebuild log line. The dashboard
sidebar also distinguishes update-in-progress and restart-required states.
Regression coverage verifies generation marker/log recovery, pre- versus
post-reboot detection, request timeout wiring, single-flight polling,
connection-loss UX, RDP/tab resume reconciliation, bounded log rendering,
page-reload recovery, and JavaScript syntax.
Validation:
* python3 -m unittest discover -s tests -p 'test_*.py' -v (170 passed)
* node --check app/sovran_systemsos_web/static/js/*.js
* python3 -m py_compile for changed Python modules
* git diff --check
A Nix evaluation was not available in the development sandbox; the NixOS
module should still be evaluated and built in CI or on a test machine before
release.
The Element Call tile still appended a synthetic 'Step 4: Router Setup
Needed' to the domain diagnostic checklist, and every port table carried a
'Sovran_SystemsOS Status' column with Ready / Not ready yet verdicts.
Both were misleading: port forwarding happens on the router, which this
computer cannot inspect. A local ss/firewall probe can neither prove nor
disprove that forwarding works — and the LiveKit TURN relay range binds on
demand, so it reported 'Not ready yet' even on a perfectly working system.
- server.py: add ROUTER_FORWARD_ONLY_UNITS ({livekit.service}); skip the
local probe for those units, drop the step-4 append, replace extra_ports
with router_ports (no status field), and exclude router-only ports from
both tile health and /api/ports/health so they can't raise false alarms.
- helpers.js: new shared renderPortForwardGuideHtml() — one intro naming the
internal IP, explicit instructions (same internal/external port, match the
protocol, use port-range fields for 30000-40000), a colour-coded
TCP / UDP / TCP+UDP badge per row, and a closing note that the only real
test is loading the service from a phone on mobile data.
- features.js: enable-time modal uses the shared guide and now always lists
every port to forward (the old local pre-filter hid ports the user still
had to open).
- service-detail.js: tile port section uses the same guide; the SSH/non-domain
branch keeps a small 'not open on this computer yet' hint, which is a real
local fact, separate from router forwarding.
- onboarding.js: step 3 router note reworded to match (same number for
internal/external, notes that Element Call adds UDP ports).
- domain-setup.css: styles for the protocol badges and instruction list.
Co-authored-by: arena-agent <297053741+arena-agent@users.noreply.github.com>
naturallaw777
naturallaw777
copilot-swe-agent[bot]