Autoscaling with Metrics and KEDA
Kubernetes autoscaling reference: Horizontal Pod Autoscaler (HPA) with CPU, memory, and custom metrics, plus KEDA for event-driven autoscaling with Kafka, RabbitMQ, Prometheus, and cron triggers.
Kubernetes Metrics
Kubernetes metrics reference: metrics-server, resource metrics API, kubectl top, Prometheus integration, ServiceMonitor, PodMonitor, and common metrics to monitor for cluster health.
OpenTelemetry — Instrumentation & Collection
OpenTelemetry reference: SDK setup, collector architecture, auto-instrumentation patterns, sampling strategies, and integration with the Grafana LGTM stack.