Raspberry Pi monitoring

How it works

1. Step 1

   Install the agent (64-bit Pi OS)

   The agent ships an arm64 build, so a Pi 3, 4 or 5 running 64-bit Raspberry Pi OS installs it with the same one-line command as any Linux server. It runs as a systemd service and reports every 60 seconds.

2. Step 2

   Send the CPU temperature

   The agent does not read temperature, so add an asset monitor and a cron job that posts /sys/class/thermal/thermal_zone0/temp to it. Asset monitors are available on every plan, including Free.

3. Step 3

   Set thresholds

   Pick the readings that matter, for example disk above 85% or CPU temperature above 75 C, and route the alert through an escalation policy to email, SMS or a phone call.

4. Step 4

   Know when it drops off

   Both the agent and the temperature feed alert when data stops arriving, so a Pi that has crashed, lost power or lost wifi raises an incident without anything having to run on it.

NODISRUPT_AUTH_KEY='<your-auth-key>' NODISRUPT_METRIC_ID='<your-monitor-id>' \
  sudo -E bash -c "$(curl -fsSL https://downloads.nodisrupt.com/agent/install.sh)"

#!/bin/sh
# /usr/local/bin/pi-temp.sh -- run every minute from cron:
# * * * * * FEED_URL=... FEED_KEY=... /usr/local/bin/pi-temp.sh
T=$(awk '{printf "%.1f", $1/1000}' /sys/class/thermal/thermal_zone0/temp)
curl -fsS -m 10 -X POST "$FEED_URL" \
  -H "Authorization: Bearer $FEED_KEY" \
  -H "Content-Type: application/json" \
  -d "{\"metrics\": {\"cpu_temp_c\": $T}}"