Laboratório Kubernetes Multi-Nó no Home Lab: A Base para CKNE e Kubestronaut

In a recent development, a lab setup has been established for studying Kubernetes in the home environment. A cluster of Kubernetes is observed running on three virtual machines – one control plane and two worker nodes – managed through QEMU/KVM and libvirt on the home lab. Cloud-Init is employed to automate the initialization process, saving time and replicating a production-like atmosphere.

The setup is particularly significant as the individual is preparing for the CKNE (Certified Kubernetes Network Engineer - Beta) exam. While the CKA focuses on Kubernetes fundamentals, the CKNE requires an in-depth understanding of networking, CNI, Gateway API, and traffic security. Having a realistic multi-node cluster is crucial for practicing tcpdump, iptables, and network policies.

Looking ahead, the goal is to commence the Kubestronaut journey after the CKNE certification, which includes achieving CKA, CKAD, CKS, KCNA, and KCSA certifications. With an LFCS certification already acquired and Terraform Associate on the horizon, the aim is to build a strong foundation in cloud-native infrastructure, automation, and security.

The home lab practice is considered essential for bridging the gap between theory and reality. The author intends to document the upcoming steps on their blog and encourages fellow CKNE or lab setup enthusiasts to share ideas in the comments.