Metrics enabled in PostgreSQL module.

Change Summary

This update introduces a new configuration parameter to enable metrics collection for the PostgreSQL database managed by Argo CD. Specifically, the metrics.enabled parameter has been added to the argocd_application resource in the main.tf file.

Technical Details

• File Modified: IaC/modules/database/main.tf
• Resource Updated: argocd_application for PostgreSQL
• New Parameter Added:

  parameter {
    name  = "metrics.enabled"
    value = "true"
  }
  

  This change configures the PostgreSQL deployment to enable metrics collection, which is crucial for monitoring and observability.

Key Learnings & Insights

• Monitoring Importance: Enabling metrics is a best practice for operational visibility. It allows teams to track performance, detect anomalies, and ensure the health of the database.
• Configuration Management: Using Infrastructure as Code (IaC) to manage configurations ensures consistency and reduces manual errors. This approach also makes it easier to version control and review changes.
• Trade-offs: Enabling metrics may introduce additional resource usage (CPU, memory) and complexity in terms of managing and interpreting the data. However, the benefits of improved monitoring typically outweigh these costs.

Impact Assessment

• Performance: There may be a slight increase in resource usage due to metrics collection, but this is generally minimal.
• Security: Ensure that metrics endpoints are secured and only accessible to authorized users to prevent exposure of sensitive data.
• Maintainability: This change enhances the maintainability of the system by providing valuable insights into the database’s performance and behavior.

Developer Notes

• Gotchas: Ensure that the monitoring solution (e.g., Prometheus, Grafana) is properly configured to collect and display these metrics.
• Edge Cases: Monitor the database performance closely after this change to ensure that the additional metrics collection does not introduce significant overhead.
• Future Improvements: Consider automating the alerting based on these metrics to proactively address any performance issues.