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server monitor: qs-stats stream adds cpu temp + wan throughput

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Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
This commit is contained in:
rope 2026-07-28 20:32:43 +01:00
parent 87165b5a62
commit 72864463d0
2 changed files with 90 additions and 2 deletions
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29
hosts/FredOS-Mediaserver.nix
View file

@ -26,6 +26,35 @@
export PATH="${pkgs.nvd}/bin:${pkgs.coreutils}/bin:${pkgs.gnugrep}/bin:${pkgs.gnused}/bin:$PATH"
exec ${pkgs.bash}/bin/bash ${../scripts/record-update.sh} "$@"
'')
# Stats stream for the quickshell server monitor on the desktops:
# `ssh mediaserver qs-stats` = top's 2s batch stream, interleaved with
# one @STAT line per tick (hottest coretemp across both sockets, WAN
# byte rates from eno1). Everything rides one SSH connection.
(pkgs.writeShellScriptBin "qs-stats" ''
C=${pkgs.coreutils}/bin
export LC_ALL=C
${pkgs.procps}/bin/top -b -d 2 -w 512 &
trap 'kill $! 2>/dev/null' EXIT
prev_rx=""
while :; do
t=0
for h in /sys/class/hwmon/*; do
if [ "$($C/cat "$h/name" 2>/dev/null)" = coretemp ]; then
for f in "$h"/temp*_input; do
v=$($C/cat "$f" 2>/dev/null || echo 0)
[ "$v" -gt "$t" ] && t=$v
done
fi
done
read -r rx tx < <(${pkgs.gawk}/bin/awk '$1 == "eno1:" {print $2, $10}' /proc/net/dev)
if [ -n "$prev_rx" ]; then
echo "@STAT temp=$((t / 1000)) rxbps=$(( (rx - prev_rx) / 2 )) txbps=$(( (tx - prev_tx) / 2 ))"
fi
prev_rx=$rx
prev_tx=$tx
$C/sleep 2
done
'')
];
# Basic networking

63
settings/quickshell.nix
View file

@ -1748,11 +1748,31 @@ in
property string uptime: ""
property string load: ""
property var procs: []
property int tempC: -1
property real rxBps: 0
property real txBps: 0
function fmtRate(bps) {
const b = bps * 8;
if (b >= 1e9) return (b / 1e9).toFixed(2) + " Gb/s";
if (b >= 1e6) return (b / 1e6).toFixed(1) + " Mb/s";
if (b >= 1e3) return Math.round(b / 1e3) + " Kb/s";
return Math.round(b) + " b/s";
}
property var _procsPending: []
property bool _collecting: false
function _parseLine(line) {
if (line.indexOf("@STAT ") === 0) {
const t = line.match(/temp=(\d+)/);
if (t) tempC = parseInt(t[1]);
const rx = line.match(/rxbps=(-?\d+)/);
if (rx) rxBps = Math.max(0, parseInt(rx[1]));
const tx = line.match(/txbps=(-?\d+)/);
if (tx) txBps = Math.max(0, parseInt(tx[1]));
return;
}
if (line.indexOf("top - ") === 0) {
if (_collecting) procs = _procsPending;
_collecting = false;
@ -1792,8 +1812,7 @@ in
command: [Commands.ssh, "-o", "BatchMode=yes", "-o", "ConnectTimeout=3",
"-o", "StrictHostKeyChecking=accept-new",
"-o", "ServerAliveInterval=5", "-o", "ServerAliveCountMax=2",
"fred@10.0.0.1",
"env", "LC_ALL=C", "top", "-b", "-d", "2", "-w", "512"]
"fred@10.0.0.1", "qs-stats"]
running: true
stdout: SplitParser {
onRead: data => srvWidget._parseLine(data)
@ -2867,6 +2886,46 @@ in
}
}
Row {
width: parent.width
spacing: 10
SText { width: 42; text: "temp"; color: Theme.base04 }
SText {
text: srvWidget.tempC < 0 ? "--" : srvWidget.tempC + "°C"
font.weight: Font.Medium
color: srvWidget.tempC < 0 ? Theme.base03
: srvWidget.tempC >= 85 ? Theme.base08
: srvWidget.tempC >= 70 ? Theme.base0A : Theme.base05
}
}
Row {
width: parent.width
spacing: 10
SText { width: 42; text: "wan"; color: Theme.base04 }
Row {
spacing: 14
Row {
spacing: 4
SIcon { text: "arrow_downward"; font.pixelSize: 14; color: Theme.base0B; anchors.verticalCenter: parent.verticalCenter }
SText {
text: srvWidget.fmtRate(srvWidget.rxBps)
font.weight: Font.Medium
anchors.verticalCenter: parent.verticalCenter
}
}
Row {
spacing: 4
SIcon { text: "arrow_upward"; font.pixelSize: 14; color: Theme.base09; anchors.verticalCenter: parent.verticalCenter }
SText {
text: srvWidget.fmtRate(srvWidget.txBps)
font.weight: Font.Medium
anchors.verticalCenter: parent.verticalCenter
}
}
}
}
Row {
width: parent.width
spacing: 10