What logs and metrics are most useful for Prometheus Operator?

In the context of using the Prometheus Operator for monitoring, there are several logs and metrics that are particularly useful for maintaining application performance and diagnosing issues.

Useful Logs for Prometheus Operator

• Application Logs: Capture critical business logic events, errors, and performance metrics.
• System Logs: Operating system logs (e.g., syslog) that provide insights into system-level issues.
• Container Logs: Logs generated by containers, useful for diagnosing issues within a containerized environment.
• Prometheus Logs: Logs generated by Prometheus itself for monitoring the health and performance of the Prometheus server.

Useful Metrics for Prometheus Operator

• CPU Usage: Helps track the CPU consumption of applications.
• Memory Usage: Monitors the memory utilization of services.
• Request Latency: Measures the response times of APIs.
• Error Rates: Tracks the rates of errors occurring in applications.
• Service Availability: Monitors the uptime and availability of services.

Example Logging and Metrics Configuration