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Cilium Operator

by pcloudhosting

Version 1.18.3+ Free Support on Ubuntu 24.04

Cilium Operator is a core component of the Cilium networking and security platform for Kubernetes. It runs as a Kubernetes controller and is responsible for managing cluster-wide tasks such as IP address management (IPAM), node initialization, and cleanup operations. The Cilium Operator works alongside the Cilium agent to provide high-performance, secure, and scalable networking using eBPF technology.

Features of Cilium Operator:

  • Manages cluster-wide responsibilities that are not suitable for per-node Cilium agents.
  • Handles IP Address Management (IPAM) for Kubernetes clusters.
  • Assists in node lifecycle management, including node addition and removal.
  • Works with eBPF to deliver high-performance networking and security.
  • Enables kube-proxy replacement for efficient service load balancing.
Common Cilium Operator Commands:
$ kubectl get pods -n kube-system | grep cilium-operator
$ kubectl describe pod -n kube-system cilium-operator-xxxxx
$ kubectl logs -n kube-system cilium-operator-xxxxx
$ kubectl get deployment cilium-operator -n kube-system

To Check Cilium Operator Version:
$ kubectl get pod -n kube-system -l io.cilium/app=operator -o jsonpath="{.items[0].spec.containers[0].image}"

Access Cilium Operator Information:
  • Operator Pod Status: kubectl get pods -n kube-system
  • Operator Logs: kubectl logs -n kube-system cilium-operator-xxxxx

Disclaimer: Cilium Operator is open-source software distributed under the Apache License 2.0. It is part of the Cilium project, maintained by the Cilium community and Isovalent. The software is provided "as is" without warranties or guarantees of any kind. Users are responsible for proper configuration, security, and compliance with applicable licenses and Kubernetes best practices.