Metrics, tuning, and scaling

To provide more detailed data on the performance and health of Puppet services via the services status API, the level flag can be set to debug; this will return metrics. For example, to return the metrics for Puppet Server and filter them using JQ, the following commands can be run:

cert="$(puppet config print hostcert)"
cacert="$(puppet config print localcacert)"
key="$(puppet config print hostprivkey)"
uri="https://$(puppet config print server):8140/status/v1/services/server?level=debug"
curl --cert "$cert" --cacert "$cacert" --key "$key" "$uri" | jq ".status.experimental"

This would output data such as the following metric for the puppet-v3-catalog endpoint:

{
  "http-metrics": [
    {
      "route-id": "puppet-v3-catalog-/*/",
      ...