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Building Scalable Systems with eBPF and Cilium: A Deep Dive into Network Policy and Observability

Learn how to build scalable systems with eBPF and Cilium, including implementing network policy and observability in production environments.

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NextGenBeing Founder

NextGenBeing Founder

Feb 12, 2026 15 views
Building Scalable Systems with eBPF and Cilium: A Deep Dive into Network Policy and Observability
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Introduction to Scalable Systems with eBPF and Cilium

When I first started working with eBPF and Cilium, I was amazed by the potential they offered for building scalable systems. However, I quickly realized that most docs skip the hard part - implementing network policy and observability in production environments. In this article, I'll share my experience with building scalable systems using eBPF and Cilium, including the challenges we faced and the solutions we implemented.

The Problem with Traditional Networking

Traditional networking approaches often rely on static configurations and manual interventions, which can become cumbersome and error-prone as the system scales. With eBPF and Cilium, we can define network policies programmatically and enforce them dynamically, which greatly simplifies the process of managing network traffic.

Implementing Network Policy with eBPF and Cilium

To implement network policy with eBPF and Cilium, we need to define a set of rules that specify how traffic should be handled.

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What's in the full article

  • Complete step-by-step implementation guide
  • Working code examples you can copy-paste
  • Advanced techniques and pro tips
  • Common mistakes to avoid
  • Real-world examples and metrics

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