Platform Status Observation

[digitalrisedorset]

Summary

Implement the first iteration of the Health Engine by collecting a minimal set of platform health observations.

The objective is to provide a lightweight operational snapshot of the platform before introducing health assessment, diagnosis or remediation capabilities.

Objectives

• Measure the percentage of sitemap pages served from cache.
• Measure current CPU utilisation.
• Measure the overall Varnish cache hit ratio.
• Produce a simple platform status report.

Platform Observations

Sitemap Cache Coverage

Determine:

• Total pages discovered from the sitemap.
• Number of pages served from cache.
• Cache hit percentage.

CPU Usage

Measure the current CPU utilisation of the host platform.

Varnish Cache Efficiency

Measure the overall Varnish cache hit ratio.

Example Output

Platform Status

Pages analysed:      524
Cached pages:        498 (95%)

CPU usage:           14%

Varnish hit ratio:   97.8%

Status: Healthy

Out of Scope

This iteration does not:

• Diagnose unhealthy behaviour.
• Recommend remediation.
• Execute remediation.
• Integrate external validation providers.
• Correlate observations.
• Produce health scores.

Future Enhancements

Future iterations may introduce:

• Observation correlation.
• Health assessment.
• Root cause analysis.
• Automated remediation.
• Historical trend analysis.