servo-prom

Optune servo driver for Prometheus

Deployment caveats

1. This driver requires measure.py base class from the Optune servo core. It can be copied or symlinked here as part of packaging.
2. The default Prometheus endpoint is http://prometheus:9090/metrics; you must set the environment variable PROMETHEUS_ENDPOINT in the servo's container if you want to use a different endpoint.
3. Alternatively, Prometheus endpoint may be specified in prometheus_endpoint key of driver configuration. If this key exists and is not empty, value specified will override PROMETHEUS_ENDPOINT.
4. If environment variable PROMETHEUS_USE_DRIVER_NAME is set to "1", then the driver will use configuration matching driver filename in config.yaml instead of a standard prom. This allows querying multiple Prometheus server via servo-magg driver.
5. Parameter period of the query definition specifies step for query_range function. Default period is 60s. If rate or similar function is used, time period for it should match the period parameter.

Notes

• You can define multiple metrics.
• The measurement precision is 1 minute.
• You may get for. ex. for requested duration of 10 minutes 11 data points due to Prometheus returning datapoints for a requested time range inclusively.