Securing the brain: Control plane high availability

This section dives deep into designing highly available, reliable, and resilient Kubernetes clusters. We will cover strategies for cluster-level HA, node-level HA, and ensuring reliable networking in Kubernetes environments. These strategies are critical for both the infrastructure and the applications running within the cluster.

By the end of this part, you’ll be ready to implement HA features and explain them clearly during a Kubernetes interview. Let’s start by exploring cluster-level HA, which includes setting up multiple control plane nodes, managing etcd clusters, and load balancing.

Cluster-level HA

Ensuring high availability at the cluster level is foundational for any Kubernetes environment. If the control plane is down, your cluster is effectively dead. This section focuses on multi-control-plane setups, etcd clustering, and load balancing for API servers. These are essential components to ensure...