ryan
ae778ebdab
A lightweight system monitoring agent that: - Collects metrics via configurable shell commands - Publishes to MQTT with Home Assistant auto-discovery - Supports entity types: sensor, binary_sensor, light, switch, button - Responds to commands over MQTT for controllable entities Architecture: - src/config.ts: TOML config loading and validation - src/mqtt.ts: MQTT client with HA discovery - src/entities.ts: Entity state polling and command handling - index.ts: CLI entry point (run, check, once commands) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
76 lines
2.0 KiB
Plaintext
76 lines
2.0 KiB
Plaintext
# Systant Configuration
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# Copy this to systant.toml and customize for your system
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[systant]
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# hostname = "myhost" # defaults to system hostname
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[mqtt]
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broker = "mqtt://localhost:1883"
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# username = "user"
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# password = "secret"
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# clientId = "systant-myhost" # defaults to systant-{hostname}
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topicPrefix = "systant"
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[entities]
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interval = 30 # default interval in seconds
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# Sensor examples
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[entities.cpu_usage]
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type = "sensor"
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state_command = "awk '/^cpu / {u=$2+$4; t=$2+$4+$5; print int(u*100/t)}' /proc/stat"
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unit = "%"
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icon = "mdi:cpu-64-bit"
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name = "CPU Usage"
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[entities.memory]
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type = "sensor"
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state_command = "awk '/MemTotal/{t=$2} /MemAvailable/{a=$2} END {print int((t-a)/t*100)}' /proc/meminfo"
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unit = "%"
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icon = "mdi:memory"
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name = "Memory Usage"
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[entities.last_seen]
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type = "sensor"
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state_command = "date -Iseconds"
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device_class = "timestamp"
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icon = "mdi:clock-check"
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name = "Last Seen"
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availability = false # keeps last value when offline
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# Binary sensor example (read-only on/off)
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# [entities.service_running]
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# type = "binary_sensor"
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# state_command = "systemctl is-active myservice >/dev/null && echo ON || echo OFF"
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# device_class = "running"
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# icon = "mdi:cog"
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# name = "My Service"
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# Light example (controllable, for things like monitors)
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# [entities.screen]
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# type = "light"
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# state_command = "xrandr | grep -q 'connected primary' && echo ON || echo OFF"
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# on_command = "xrandr --output DP-1 --auto"
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# off_command = "xrandr --output DP-1 --off"
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# icon = "mdi:monitor"
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# name = "Screen"
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# Switch example (controllable on/off)
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# [entities.vpn]
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# type = "switch"
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# state_command = "systemctl is-active openvpn >/dev/null && echo ON || echo OFF"
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# on_command = "systemctl start openvpn"
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# off_command = "systemctl stop openvpn"
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# icon = "mdi:vpn"
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# name = "VPN"
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# Button example (just executes a command)
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# [entities.sync_time]
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# type = "button"
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# press_command = "ntpdate pool.ntp.org"
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# icon = "mdi:clock-sync"
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# name = "Sync Time"
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[homeassistant]
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discovery = true
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discoveryPrefix = "homeassistant"
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