🛡️ Kubernetes Runtime & eBPF Security Masterclass

Welcome to the Kubernetes Runtime & eBPF Security Masterclass. This module dives deep into securing Kubernetes workloads at the lowest possible level: the Linux kernel.

By leveraging eBPF (Extended Berkeley Packet Filter), modern security tools can observe, filter, and block malicious behavior with near-zero overhead. This guide covers the major pillars of cloud-native runtime security:

1. eBPF Primitives: How kernel hooks work.
2. Falco: Threat detection and syscall auditing.
3. Cilium: Microsegmentation and network security.
4. Tetragon: Real-time runtime enforcement and killing malicious processes.
5. Container Escapes: Preventing breakouts to the host node.
6. Malware Detection: Catching fileless malware.
7. Compliance: Continuous auditing with Rego and OPA.

🧠 The 4-Layer Pattern

Every chapter in this guide strictly follows the 4-Layer Pattern to ensure you understand both the why and the how:

1. The Concept (ELI5): Simple, real-world analogies.
2. The Visual: Architectural blueprints (Mermaid).
3. The Code: Side-by-side Vulnerable ❌ vs Secure ✅ code in Go, Python, and TypeScript.
4. The Guardrail: Infrastructure-as-Code (Terraform, Rego, Semgrep) to prevent the issue in CI/CD.

Let's dive into the kernel!