Replaces the JSON history file behind /api/system/history with a fixed-size
binary ring buffer on disk and adds a second, downsampled tier so the chart
can now span seven days, not just twenty-four hours.
Two on-disk rings under frontend/data/system/:
metrics_ring_1m.bin 1440 pts @ 1 min ( 24 h)
metrics_ring_5m.bin 2016 pts @ 5 min ( 7 d)
Each point is 32 bytes (uint32 timestamp + 7 float32 metrics — cpu / mem /
swap / disk / load1 / net_rx / net_tx); files carry a 32-byte header with
magic, version, capacity, head, count, bucket seconds, and last bucket time
so they're self-describing and torn-write recoverable.
A persistent 1-minute ticker inside the backend (independent of whether
anyone's subscribed to /api/system/stream) composes points from /proc plus
the bash generator's latest snapshots and appends to the 1m ring; every
five minutes it averages the last five 1m points into the 5m ring. On
first run, the writer backfills the 1m ring from the legacy
metrics_history.json so first paint already has 24 h.
/api/system/history?range=N auto-selects the tier (≤1440 → 1m, else 5m),
keeps the existing { points, updated } shape, and additionally returns
`tier` for clients that care. Falls back to the legacy JSON on cold start.
Admin → System: 7d added to the range picker (now 1h / 6h / 24h / 7d),
swap + load1 promoted to their own trend cards, and every gauge / chart
card grows an Expand affordance that opens a fullscreen single-metric
deep-dive overlay:
- Big themed chart with grid, gradient area, peak/min/now markers, and
a live-pulsing "now" dot
- Hover crosshair + tooltip scrubs the series with formatted time +
value
- now / peak / avg / min stat strip with deltas
- Range picker (1h / 6h / 24h / 7d) re-fetches and re-themes per metric
- 1 Hz live SSE feed updates the overlay's now-stat in real time
- Escape / backdrop / close button all dismiss
- Per-metric accent colour (cpu=accent, mem=info, disk/swap=warning,
net_rx=success, net_tx=accent, load=accent) flows through gradient,
border, dot, and stats card
Zero new dependencies — hand-rolled SVG and pointer events throughout.
Signed-off-by: librelad <librelad@digitalangels.vip>
The 1h max-age set in Phase A caused a cache-vs-deploy mismatch when
Phase B refactored config-manager.js to lazy-load admin-overview.js et
al. The new index.html no longer eager-loads those scripts, but
browsers with the cached (pre-Phase-B) config-manager.js didn't do the
lazy-load either — so AdminOverview / AdminSystem / etc. were
undefined and the admin tools rendered 'failed to load' errors.
60s is the right balance: rapid in-session clicks skip the network
round-trip, but a deploy is visible within a minute. ETag-based 304s
still keep the per-request cost tiny when nothing changed.
Signed-off-by: librelad <librelad@digitalangels.vip>
Three WebUI cold-load wins:
1. DELETED containers/libreportal/frontend/js/components/config/config-manager-old.js
66 KB / 68189 bytes. Zero references anywhere in source or deployed
tree (confirmed via grep across containers/libreportal/). Pure dead
code from a previous refactor — removed.
2. ADDED `compression` middleware (defensive require)
Gzip-compresses JS/CSS/HTML/JSON responses. Typical ~70 % wire-size
reduction → the 1.7 MB cold-load drops to ~500 KB. New package.json
dependency; container's node_modules is baked into the image so the
require is wrapped in try/catch to degrade silently until the image
is next rebuilt (libreportal app install libreportal, or a full
deploy). Once active: free wire-size win on every response.
3. ADDED static cache headers via staticOptions on express.static
- JS/CSS/icons: Cache-Control: max-age=3600 + ETag
(1h browser cache, cheap 304 revalidation after)
- HTML files: Cache-Control: no-cache + ETag
(always revalidates so SPA shell updates land
immediately after a deploy; 304 if unchanged)
Repeat navigation in the same browser session skips ~25 script-tag
round-trips entirely.
Net effect once compression deploys:
- Cold load: 1.7 MB → ~500 KB on the wire (~70 % shrink)
- Warm load: 25 conditional requests → 0 (served from cache for 1h)
- Deploy lands: HTML revalidates immediately, JS/CSS picks up after 1h
or hard refresh
Phase B (defer non-critical scripts via SPA loadScript) and Phase C
(rebuild image / split the bind-mount story for node_modules) come
next; this commit is the safe Phase A foundation.
Signed-off-by: librelad <librelad@digitalangels.vip>
Audit follow-up — after a full-repo sweep, the only remaining functional /docker
refs are intentional (the legacy compat shim + the env-overridden legacy-safe
backend default). Fix the last user-visible/stale ones:
- config-options.js: backup PATH_MODE 'auto' label no longer hardcodes
/docker/backups (the path is relocatable) — describes the behaviour instead.
- config.js / setup-detector.js / webui_install_image.sh: refresh comments that
named /docker to the relocatable system/containers roots.
No behaviour change. Active container app scripts already use $containers_dir;
the remaining /docker hits across the tree are docker-compose.yml filenames,
/var/lib/docker, the docker binary, relative array paths, docs/site, and the
unused/ graveyard.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Signed-off-by: librelad <librelad@digitalangels.vip>
A free, open, self-hosted app platform (GNU AGPLv3): one-click app deploys,
Traefik reverse proxy with automatic SSL, rootless Docker support, gluetun
VPN routing, and a web dashboard to manage it all.
Free & open forever to self-host; optional paid hosted services fund it.
See PROMISE.md.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Signed-off-by: librelad <librelad@digitalangels.vip>
