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 user Dashboard carried a small chevron link "Admin overview →" just
above the installed-apps grid. The topbar already has a top-level "Admin"
nav-item (topbar.html:34) that goes to the same /admin route. The
dashboard link was a redundant second entry point with no extra value;
removing it tightens the dashboard layout without losing navigation.
Drops:
- dashboard-content.html: the <a class="dashboard-admin-link"> block
- admin.css: the .dashboard-admin-link rule + :hover (now orphaned)
The /admin route, the topbar Admin nav-item, and the AdminOverview JS
component all stay as-is — only the dashboard-side entry point goes.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Signed-off-by: librelad <librelad@digitalangels.vip>
New 'System' admin page (sidebar Tools group) rendering the metrics the
collector now produces:
- live ring gauges for CPU, memory, disk and load
- SVG trend charts (CPU/mem/disk/network) with 1h/6h/24h range toggle
- host info + swap + docker summary strips
- per-app table: CPU/mem bars, network, status, CPU sparkline
Charts are hand-rolled SVG in charts.js (LPCharts) — no third-party libs or
CDN calls — themed entirely from the active theme's CSS variables. The
Overview System card now links here.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Signed-off-by: librelad <librelad@digitalangels.vip>
Add an Admin Overview as the Admin landing (default when you open Admin): an
ops/health board distinct from the user Dashboard. Four cards built from data
we already generate — Updates (update_status.json, with one-click update),
Backups (backup dashboard.json), SSH & Security (access.json), System
(disk/memory/system_info) — each with a Manage link into the right section.
Styled like the backup dashboard (tiles/status dots).
Wire-up: 'Overview' is the top sidebar item and the default category
(handleConfig + sidebar), rendered by AdminOverview into #config-section via a
renderConfig('overview') special case. Every Admin page now shows the same
'Admin' breadcrumb header (Overview, SSH Access, and the config categories) for
a consistent Admin → Section feel. User Dashboard gets an 'Admin overview →'
link.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Signed-off-by: librelad <librelad@digitalangels.vip>
