Prometheus

OPA exposes an HTTP endpoint that can be used to collect performance metrics for all API calls. The Prometheus endpoint is enabled by default when you run OPA as a server.

You can enable metric collection from OPA with the following prometheus.yml config:

global_config:
  scrape_interval: 15s
scrape_configs:
  - job_name: "opa"
    metrics_path: "/metrics"
    static_configs:
    - targets:
      - "localhost:8181"

Health Checks

OPA exposes a /health API endpoint that can be used to perform health checks. See Health API for details.