Added metrics enabled parameter.

Change Summary

This update introduces a new configuration parameter to enable metrics collection for the PostgreSQL database managed by the ArgoCD application. Specifically, the metrics.enabled parameter has been added and set to true.

Technical Details

• File Modified: IaC/modules/database/main.tf
• Resource Affected: argocd_application named postgresql
• New Parameter Added:

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

  This change configures the PostgreSQL deployment to enable metrics collection, which is likely to be used for monitoring and observability purposes.

Key Learnings & Insights

• Monitoring and Observability: Enabling metrics is a crucial step towards better monitoring and observability of the database. It allows for the collection of performance data, which can be used to identify bottlenecks, track usage patterns, and ensure the health of the database.
• Configuration Management: Using Infrastructure as Code (IaC) to manage configuration parameters ensures consistency and reduces the risk of manual errors. It also makes it easier to version control and audit changes.
• Best Practice: Incorporating monitoring from the outset is a best practice in modern application deployment. It aligns with the principles of DevOps and site reliability engineering (SRE).

Impact Assessment

• Performance: Enabling metrics may have a minor impact on performance due to the additional overhead of collecting and reporting data. However, this is typically negligible in well-optimized systems.
• Security: Ensure that the metrics endpoint is secured and accessible only to authorized users to prevent unauthorized data access.
• Maintainability: This change enhances maintainability by providing valuable insights into the database’s performance, aiding in proactive issue resolution.

Developer Notes

• Gotchas: Ensure that the metrics collection does not violate any data privacy regulations applicable to your organization.
• Edge Cases: Monitor the database closely after enabling metrics to ensure that the additional load does not cause performance issues.
• Future Improvements: Consider integrating these metrics with a centralized monitoring solution (e.g., Prometheus, Grafana) for comprehensive observability.