Building a Production eBPF Observability & Security Stack for Kubernetes in 2026

The provided YAML and shell scripts outline a comprehensive approach to deploying observability tools in Kubernetes, focusing on real-time security monitoring with Tetragon and zero-code APM tracing with OpenTelemetry eBPF Instrumentation (OBI). Below is an analysis of the components involved:

1. Deploying Tetragon for Real-Time Security Monitoring

Tetragon DaemonSet

The YAML file tetragon-daemonset.yaml sets up a daemon set that runs the Tetragon agent in each node, enabling real-time security monitoring and incident response.

• Security Context: The daemon set is configured to run with host PID and network access (hostPID: true, hostNetwork: true) to allow eBPF programs to monitor processes and network traffic.
• Tetragon Configuration: Environment variables like TETRAGON_HOST_PID are used to enable monitoring of the host's process ID space, which is crucial for capturing all running processes on the node.

Deploying Tetragon

The shell command uses kubectl apply -f tetragon-daemonset.yaml to deploy the daemon set. This ensures that the Tetragon agent runs as a sidecar container in each Kubernetes node, monitoring and securing workloads.

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