This stack assembles the best open-source tools for achieving comprehensive Kubernetes observability from the network layer through application behavior to incident response. Cilium with Hubble serves as the foundation, providing eBPF-based network monitoring that captures service-to-service communication patterns, latency metrics, and network policy decisions at the kernel level without any application code changes.
Coroot adds application-level observability through its eBPF agents that automatically instrument services for request tracing, latency analysis, and continuous profiling. Together with Cilium's network visibility, Coroot provides the application performance data that helps teams understand not just what is communicating but how well each service is performing under its current workload.
Robusta provides the alert intelligence layer that transforms raw Prometheus alerts into actionable incident reports. When an alert fires, Robusta enriches it with pod logs, resource metrics, restart history, and troubleshooting suggestions before delivering it to Slack or PagerDuty. This enrichment dramatically reduces the time engineers spend gathering context during incident response.
Botkube brings the operational response directly into team communication channels. Engineers can query cluster state, execute kubectl commands, and trigger remediation workflows from Slack without switching to a terminal. Combined with Robusta's enriched alerts arriving in the same channels, the ChatOps workflow keeps incident response collaborative and documented automatically.
The entire stack runs on open-source software with eBPF as the unifying technology for data collection. By avoiding proprietary agents and commercial monitoring platforms, teams maintain full control over their observability data and infrastructure. The cost is limited to compute resources for running the tools, which is a fraction of equivalent commercial platform pricing.
The integration between components follows standard protocols. Cilium and Coroot export metrics to Prometheus and traces to OpenTelemetry collectors. Robusta hooks into Prometheus AlertManager for alert enrichment. Botkube monitors cluster events and responds to chat commands. Grafana dashboards pull from all data sources to provide unified visualization across network, application, and infrastructure layers.