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This article explains why mastering Kubernetes is key to cloud computing, outlines its rapid growth and ecosystem support, and provides practical steps, design‑pattern guidance, and community resources for effectively reading and understanding the Kubernetes source code.
The author recounts a sudden CPU spike on a Kubernetes pod caused by excessive JVM garbage collection, walks through step‑by‑step diagnostics using top, thread inspection, jstack, and network file transfer, identifies a flawed Excel export loop, and shares the fix and lessons learned.
This article reviews five leading open‑source storage solutions for Kubernetes—OpenEBS, Rook, GlusterFS, Ceph, and LongHorn—detailing their architectures, key features, and ideal use‑cases to help readers select the most appropriate storage option for various application requirements.
This tutorial walks you through configuring static and dynamic Ceph RBD storage for Kubernetes, covering version compatibility, required Ceph pool setup, CSI configuration, deployment of provisioner and node plugins, and validation with a PVC and pod, all with detailed command examples.
This article explains the challenges of updating ConfigMaps and Secrets in cloud‑native environments, compares env and volume injection methods, and demonstrates how the open‑source Reloader tool can automatically watch changes and trigger rolling updates for deployments, statefulsets, and other workloads.
During a production deployment of large language model training on Kubernetes, a pod failed due to insufficient /dev/shm shared memory; the article details the root cause, explores missing pod spec parameters, and presents a complete solution using an emptyDir volume with medium: Memory and sizeLimit to configure shared memory.
This tutorial walks through the prerequisites, static and dynamic provisioning steps, and verification commands for integrating NFS storage into a Kubernetes cluster, providing complete YAML manifests and shell commands to create PVs, PVCs, Deployments, and StorageClasses.
This tutorial explains how to connect Kubernetes to external storage via the Container Storage Interface, covering local mode storage setup, configuration steps, verification, and best‑practice tips for reliable, persistent data management in cloud‑native environments.
This article provides a comprehensive overview of Kubernetes, detailing its cloud‑native architecture, the roles of Master and Node components, key services such as API Server, etcd, Controller Manager, Scheduler, as well as node‑level elements like Kubelet, container runtimes, and Kube‑Proxy, while also offering practical code examples and resource links.
Kubewatch is an open‑source, lightweight Kubernetes event watcher that streams resource changes such as pod creation, deletion, and updates to various notification channels like Slack, Mattermost, and custom webhooks, and can be quickly installed and configured via Helm charts.