TrueNAS (specifically referring to TrueNAS SCALE, but CORE should be the same) doesn't offer native support for monitoring by Prometheus. Suggestions on the Internets seem to point at using the built-in Graphite exporter to send metrics to graphite_exporter, which can be scraped by Prometheus. This DOES work, with some caveats:
- Many metrics seem to report 0, incorrectly.
- Tons of work to parse and create tags in the style of Prometheus
---
mappings:
- match: 'dragonfish.truenas.disk_ops.*.*'
name: 'dragonfish_truenas_disk_ops'
labels:
device: $1
operation: $2
- match: 'dragonfish.truenas.cputemp.temperatures.*'
name: 'dragonfish_truenas_cputemp'
labels:
cpu: $1
- match: 'dragonfish.truenas.cpu.cpufreq.*'
name: 'dragonfish_truenas_cpufreq'
labels:
cpu: $1
- match: 'dragonfish.truenas.cpu.core_throttling.*'
name: 'dragonfish_truenas_cpu_core_throttling'
labels:
cpu: $1
- match: 'dragonfish.truenas.zfspool_state.*.*'
name: 'dragonfish_truenas_zpool_state'
labels:
pool: $1
state: $2
# regex matches are performed after regular matches
- match: 'dragonfish\.truenas\.cpu\.cpu(\d+)_cpuidle\.(.*)'
match_type: regex
name: 'dragonfish_truenas_cpuidle'
labels:
cpu: $1
idlestate: $2
- match: 'dragonfish\.truenas\.cpu\.cpu(\d+)\.(\w+)'
match_type: regex
name: 'dragonfish_truenas_cpu_utilization'
labels:
cpu: $1
type: $2
- match: 'dragonfish\.truenas\.disk_avgsz\.([[:alnum:]]+)\.writes'
#help: 'Average I/O write operation size.'
match_type: regex
name: 'dragonfish_truenas_disk_avgsz_writes'
labels:
device: $1
- match: 'dragonfish\.truenas\.disk_avgsz\.([[:alnum:]]+)\.reads'
#help: 'Average I/O read operation size.'
match_type: regex
name: 'dragonfish_truenas_disk_avgsz_reads'
labels:
device: $1
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