Introduction to Cilium

This chapter introduces fundamental concepts of Kubernetes networking, exploring the challenges and requirements of container networking in a Kubernetes environment. It provides essential background knowledge for understanding how Cilium addresses these networking challenges.

This chapter explores Cilium's architecture and its integration with eBPF technology. It covers how Cilium leverages eBPF to enhance cloud native networking capabilities and explains the fundamental concepts of both technologies.

This chapter provides a comprehensive look at Cilium's network policy capabilities, including how to create and manage network policies for securing Kubernetes connectivity at various network layers.

This chapter focuses on Hubble, Cilium's observability tool, explaining how to use it to monitor and analyze network flows in a Kubernetes cluster. It covers installation, configuration, and practical usage scenarios.

This chapter covers the implementation of transparent network encryption between nodes using Cilium. It explains how to configure and manage secure communication channels in a Kubernetes environment.

This chapter examines Kubernetes service networking and the role of kube-proxy, providing the foundation for understanding how Cilium can enhance or replace these components.

This chapter guides through the process of replacing kube-proxy with Cilium's native implementation, explaining the benefits and configuration steps for this transition.

This chapter explores Cilium's cluster mesh capabilities, showing how to connect multiple Kubernetes clusters and manage inter-cluster networking and security policies.