Microservices demand full-stack visibility; OpenTelemetry standardizes traces, metrics, logs. Grafana stacks with Loki and Tempo unify dashboards. eBPF-powered Pixie auto-instruments without code changes. Prometheus federates multi-cluster data. SLO alerting via Keptn automates rollouts. AI from Dynatrace baselines performance. This accelerates debugging in Kubernetes, boosting uptime to 99.99%. Integrate with service meshes for end-to-end latency.