buildServiceDiscoveryJson

Builds a Prometheus-compatible service discovery JSON response.

This method generates a JSON array in the format expected by Prometheus HTTP service discovery. Each registered path is represented as a target with associated labels that Prometheus can use for scraping configuration.

The generated JSON includes:

• targets: Array containing the proxy endpoint for each path

• labels: Metadata about each target including:

• __metrics_path__: The path to scrape

• agentName: Names of agents serving this path

• hostName: Hostnames of agents serving this path

• Custom labels from agent path configuration

Example Output

[
  {
    "targets": ["proxy.example.com:8080"],
    "labels": {
      "__metrics_path__": "/app1_metrics",
      "agentName": "agent-01",
      "hostName": "internal.host.com",
      "environment": "production",
      "service": "web"
    }
  }
]

See also