Microservices Observability with Kubernetes and API Gateway | Kong Inc

In the modern SaaS environment, observability is crucial for software reliability, with application monitoring categorized into white box and black box monitoring. White box monitoring provides internal visibility through application instrumentation, while black box monitoring treats applications as opaque entities, observing their external interactions. This guide details setting up black box monitoring on Kubernetes using Prometheus and Grafana, with Kong as the Ingress Controller to uniformly collect metrics for all services. It outlines the installation of Prometheus and Grafana via Helm, enabling the Prometheus plugin in Kong, and setting up Ingress routing for services to proxy traffic. The guide emphasizes monitoring metrics like request latencies, error rates, and bandwidth consumption, using queries in Prometheus to gain insights and alert on performance issues. The setup provides a comprehensive view of service health and paves the way for utilizing Kong's other functionalities such as authentication and load balancing.

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