Configuring Cilium

Cilium uses extended Berkeley Packet Filter (eBPF) filtering technology to ensure network connectivity across Kubernetes Services by adding high-level application rules. It manages operations and converts network definitions to eBPF applications as a cilium-agent daemon on each node of the Kubernetes cluster. Pods communicate with one another using an overlay network or a routing mechanism; for instance, both IPv4 and IPv6 addresses are supported. VXLAN tunneling is used for packet encapsulation in overlay networks, while native routing is done via the unencapsulated BGP protocol.

The eBPF Linux kernel feature allows for the dynamic insertion of sophisticated security visibility and control logic within Linux itself, as shown in the following diagram. Cilium security policies can be applied and modified without requiring any changes to the application code or container configuration because eBPF operates inside the Linux kernel. It also has HyperText Transfer...