Prometheus exporter for iSMC + S.M.A.R.T. data from macOS

This exporter uses github.com/dkorunic/iSMC and github.com/anatol/smart.go.

It is intended to measure data not covered by node-exporter on modern Apple-Silicon Mac, mainly various sensors from iSMC and temperature sensors for NVMe drives - both built-in and ones connected via Thunderbolt (PCIe).

Data

Data is exposed on port 65002

ismc_

Labels:

• family - enum of 4 categories
• key - key from iSMC
• label - description from iSMC converted to influx-like format (no spaces)
• unit

Metrics:

• ismc_battery{family="battery",key="....",label="...",unit="none"}
• ismc_fans{family="fans",key="....",label="...",unit="rpm"}
• ismc_power{family="power",key="....",label="...",unit="w"}
• ismc_temperature{family="temperature",key="....",label="...",unit="c"}

smart_

Labels:

• device - disk node of SMART-capable NVMe disk under in /dev (e.g. disk0); not guaranteed to stay the same between reboots
• model - disk model string
• serial - disk serial string
• size - size in bytes, may default to 0 for built-in drive
• unit

Metrics:

• smart_power_cycles{device="disk0",model="APPLE SSD ...",serial="...",size="0",unit=""}
• smart_power_hours{device="disk0",model="APPLE SSD ...",serial="...",size="0",unit=""}
• smart_temperature{device="disk0",model="APPLE SSD ...",serial="...",size="0",unit="c"}
• smart_units_read{device="disk0",model="APPLE SSD ...",serial="...",size="0",unit=""}
• smart_units_written{device="disk0",model="APPLE SSD ...",serial="...",size="0",unit=""}

Usage

Example scenario using launchctl and Prometheus Stack on k8s:

• self-compile using go
• install binary to /usr/local/bin (as root)
• deploy provided example service plist to ~/Library/LaunchAgents/
• launchctl load ~/Library/LaunchAgents/tech.skowronski.ismc-exporter.plist
• patch provided example ScrapeConfig CRD for PromStack with correct IP address and name of your Mac
• deploy it onto k8s with kubectl -f PromStackScrapeConfig.yaml apply
• create Grafana dashboard