How do I correlate logs, metrics, and traces for GCP GKE?

In GCP GKE (Google Cloud Platform Kubernetes Engine), correlating logs, metrics, and traces is essential for monitoring and troubleshooting applications effectively. This integration can help you maintain system health, trace requests, and diagnose issues quickly.

Steps to Correlate Logs, Metrics, and Traces

  1. Enable Cloud Operations (formerly Stackdriver) for your GKE cluster to collect metrics and logs.
  2. Implement OpenTelemetry to capture traces across your microservices.
  3. Use Prometheus and Grafana for advanced metric analysis and visualization.
  4. Link Cloud Logging with Cloud Monitoring for unified access to logs and metrics.

Example Code for Logging and Tracing

<?php require 'vendor/autoload.php'; use OpenTelemetry\SDK\Trace\TracerProvider; use OpenTelemetry\SDK\Trace\Span; $tracerProvider = TracerProvider::startAndActivate(); $tracer = $tracerProvider->getTracer('example-tracer'); // Start tracing $span = $tracer->startSpan('example_span'); // Log something error_log('This is a log entry for correlation'); // End tracing $span->end(); ?>

GCP GKE logs metrics traces Cloud Operations OpenTelemetry Prometheus Grafana monitoring troubleshooting

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