Prometheus metrics

[davidban77]

Environment

• Nautobot version: 1.5.13 (to get metrics.py support)
• nautobot-plugin-device-lifecycle-mgmt version: latest

Proposed Functionality

Expose Prometheus metrics for this app. Examples:

Get Value Secrets Total and Errors

Providers like AWS have get_value_secrets method which could expose metrics for its gets and its errors:

• nautobot_secrets_provider_get_value_secrets_total{provider="aws"} 27.0
• nautobot_secrets_provider_get_value_secrets_errors_total{provider="aws", error_code="DecryptionFailureException"} 2.0

These are just a few examples.

Use Case

Allow users of the platform to generate time series from their Nautobot instance. In the end this could troubleshoot and get more insight of their Nautobot platform.