Introduction

Will rewrite Nomad StatsD metrics into DataDog StatsD metrics, with tags, which make the metrics infinitely more useful.

Rules are defined in rules.go, and should be pretty self-explanitory.

Pull-Requests for other open source project rules are more than welcome.

A sample nomad job file exist in _infrastrcture/nomad/ - the file is a template, and can't be run directly, please replace the {{ }} markers with actual values for your environment.

The agent will listen on UDP port 8126 for statsd, and TCP port 4000 for expvar export data. It will always forward metrics to 127.0.0.1:8125 (DataDog StatsD default port)

Nomad

Example

nomad.client.allocs.{nomad_job}.{nomad_task_group}.{nomad_allocation_id}.{nomad_task}.memory.{nomad_metric}

can be rewritten into

nomad.allocation.memory.{nomad_metric}

with

nomad_job,nomad_task_group,nomad_allocation_id,nomad_task,nomad_metric being converted into named tags (e.g. nomad_job:example-job)

Config

The following Nomad client telemetry configuration is assumed.

telemetry {
  statsd_address = "localhost:8126"

  disable_hostname = true

  publish_node_metrics = true
  publish_allocation_metrics = true
}