OPA PDP Metrics Overview

This document provides a high-level overview of the metrics and statistics functionality implemented in the policy-opa-pdp service. The purpose of this module is to collect, manage, and expose operational metrics related to policy decisions and data handling within the OPA PDP (Policy Decision Point) system.

Purpose

The metrics module is designed to:

  • Track the success and failure of policy decisions.

  • Monitor deployment and undeployment operations.

  • Record dynamic data update outcomes.

  • Provide real-time statistics for observability and monitoring.

  • Integrate with Prometheus for metric collection and visualization.

Key Features

  1. Metric Counters

  • The system maintains internal counters for:

    • Decision successes and failures

    • Deployment and undeployment outcomes

    • Dynamic data update results

    • Total number of policies

    • General error occurrences

    /statistics

    Statistics Swagger

  1. Prometheus Integration

  • The policy-opa-pdp service exposes several Prometheus-compatible metrics to support observability and performance monitoring. These metrics are automatically registered and can be scraped by Prometheus for visualization and alerting.

  • Below are some example metrics exposed by the service:

    /metrics

    Prometheus Metrics.