Kubernetes Architecture Explained: Master Nodes, Pods & Core Components
Blog post from Qovery
Kubernetes operates on a master-slave architecture, where the master node functions as the control plane managing global decisions like scheduling and event detection, while worker nodes are responsible for running applications through components such as Kubelet and container runtimes. Key abstractions include Pods as the smallest deployable units, Services for network access, and Deployments for managing the desired state of applications. Managing Kubernetes involves configuring intricate components like Volumes for storage and networking through Kube-proxy and Ingress. The architecture supports various workloads like Deployments, StatefulSets, and DaemonSets, facilitating automated and scalable deployment of containerized applications. Tools like ConfigMaps and Secrets are utilized for managing configurations and sensitive information. Kubernetes promises scalability and reliable container orchestration, though it can be complex, which has led to solutions like Qovery to simplify its management by abstracting complexities and allowing developers to focus on application logic over infrastructure.