### Sample Configuration for Prometheus Metrics Proxy

Source: https://github.com/dfinity/metrics-proxy/blob/master/README.md

This configuration defines how the metrics proxy should operate, including listening addresses, target exporters, and metric filtering rules. It demonstrates the structure for setting up multiple proxies and applying transformations like reducing time resolution.

```yaml
proxies:
  - listen_on:
      url: http://0.0.0.0:18080
    connect_to:
      url: http://localhost:9100/metrics
    label_filters:
      - regex: .*
        actions:
          - drop
      - regex: node_cpu_.*
        actions:
          - reduce_time_resolution:
              resolution: 5s
          - keep
metrics:
  url: http://127.0.0.1:8008/metrics
```

--------------------------------

### Generate Test Certificates with OpenSSL

Source: https://github.com/dfinity/metrics-proxy/blob/master/README.md

This command generates a self-signed X.509 certificate and a private key for testing HTTPS configurations. Ensure to provide a common name when prompted.

```bash
openssl req -newkey rsa:2048 -nodes -keyout key.pem -x509 -days 365 -out certificate.pem
```

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