This article provides a comprehensive, step‑by‑step explanation of Kubernetes (K8s) architecture and operation, covering the control plane components, node components, data flow, and the detailed workflow from a kubectl command to a running pod, illustrated with diagrams and ASCII schematics.
This comprehensive guide explains every major Kubernetes resource—from workload objects like Pods and Deployments to services, ingress, configuration maps, storage classes, cluster‑level objects, and security primitives—providing clear descriptions, practical YAML examples, and a handy reference summary.
This guide walks you through installing Docker Desktop, configuring registry mirrors, running a PowerShell script to preload required images, enabling the built‑in Kubernetes cluster, and accessing the Kubernetes Dashboard, providing a complete solution for quickly setting up a local K8s environment on Windows or macOS.
This handbook provides Kubernetes operators with a comprehensive, step‑by‑step troubleshooting framework covering common Pod issues, Node problems, and cluster‑wide failures, offering practical commands, diagnostic tips, and explanations of error states to quickly identify and resolve stability challenges in K8s environments.
This tutorial walks through preparing three CentOS 7 hosts, installing Docker and Kubernetes components, initializing a master node, handling common errors, joining worker nodes, installing a CNI plugin, testing the cluster, and provides essential kubectl commands for ongoing management.
This guide walks you through enabling Kubernetes in Docker Desktop on Windows or macOS, covering prerequisite setup, configuring registry mirrors, loading required images via a PowerShell script, activating the K8s service, and accessing the Kubernetes Dashboard for cluster visualization.
This guide walks through configuring three Ubuntu servers, installing KubeKey, creating a Kubernetes v1.28.8 cluster with HAProxy load balancing, deploying a sample nginx workload, and verifying the installation using kubectl and curl, providing all necessary commands and configuration details for a successful deployment.
This guide walks through checking the system environment, installing the NVIDIA Docker plugin, configuring Docker to use the NVIDIA runtime, verifying GPU access with Docker, deploying the NVIDIA device plugin on a Kubernetes cluster, and running GPU‑accelerated workloads in pods.
This guide explains what Kubernetes VPA is, its architecture, version compatibility, step‑by‑step installation, certificate setup, manifest generation, practical VPA configuration, validation procedures, performance testing, and known limitations, enabling you to optimize pod resources in cloud‑native clusters.
This guide explains what Kubernetes Horizontal Pod Autoscaler (HPA) is, how it works, its key features, and provides step‑by‑step configuration, verification, and scaling policy details with practical code examples for cloud‑native applications.
This article compiles 128 high‑frequency Kubernetes interview questions covering architecture, components, networking, storage, security, and operational practices, providing a comprehensive study guide for candidates preparing for K8s‑related positions.
This article presents a comprehensive case study of a high‑traffic business middle‑platform built with SpringBoot microservices, Kong API Gateway, MyCat‑sharded MySQL, Docker containerization, Kubernetes orchestration, CI/CD pipelines, and monitoring tools, detailing design decisions, implementation tricks, and operational lessons learned.
This article explains the role of kube-scheduler in Kubernetes, details its scheduling workflow and plugin framework, and demonstrates how to define a custom scheduler by configuring KubeSchedulerConfiguration, creating a ConfigMap, deploying it via a Deployment, and verifying its operation alongside the default scheduler.
This article provides a detailed introduction to Kubernetes (K8S), explaining its four main problem areas, the master‑node architecture, key master and node components, networking modules, and the relationship between K8S and Docker, while also offering additional resource links.
This article explains why long‑running Kubernetes clusters can suffer memory‑leak errors and certificate expiration, and provides detailed, command‑line solutions including disabling kmem accounting, recompiling runc and kubelet, and extending certificate validity to ten years.
This article compares traditional Linux crontab with Kubernetes CronJob, outlines the limitations of crontab, highlights the high‑availability and advanced features of K8s CronJob, and demonstrates how Alibaba Cloud SchedulerX provides a visual, low‑learning‑cost solution for managing container‑native scheduled tasks.
This article provides a step‑by‑step tutorial on preparing hardware, installing Docker, downloading and configuring Kubernetes, deploying the control plane and workloads, managing clusters, and detailed hands‑on examples for ConfigMaps, Jobs, Deployments, StatefulSets, and common applications such as Flask, MySQL, Redis, GitLab, and Jenkins, all illustrated with ready‑to‑use YAML and kubectl commands.
This article details Didi’s Elastic Cloud container platform, explaining its Kubernetes‑based scheduling architecture, custom pre‑filter and scoring extensions, service‑profiling driven placement, rescheduling mechanisms, rule‑engine integration, upgrade strategies from k8s 1.12 to 1.20, and the stability framework that keeps a massive multi‑tenant fleet running reliably.
This article provides a comprehensive guide to Kubernetes Gateway API, covering its evolution from Ingress, core concepts, resource types, configuration examples, role‑based design, cross‑namespace routing, and practical steps for installation, deployment, and management using Istio and other controllers.
This guide walks through setting up a Kubernetes cluster with NFS storage, loading Jenkins and agent Docker images, configuring ArgoCD, deploying Jenkins via declarative manifests, initializing Jenkins, creating and deploying a static Jenkins agent, and troubleshooting common issues, providing full code snippets and screenshots.
The article explains how automated performance testing using Alibaba Cloud PTS—integrated with VPC‑based Kubernetes clusters, GitLab CI/CD pipelines, and cloud APIs—overcomes the inaccuracy, coordination delays, and resource waste of manual testing by providing on‑demand, scalable load generation, scenario orchestration, real‑time metrics, and cost‑effective reporting.
This technical guide details a real‑world Kubernetes deployment, covering a 10‑node cluster specification, master‑worker architecture, containerized frontend and backend services, MySQL persistence, load‑balancing, step‑by‑step deployment procedures, and monitoring setup.
The Berserker big‑data platform provides a one‑stop data development and governance solution built on over 40 micro‑services, featuring the Archer scheduler with CN and EN nodes, Raft‑based state management, Docker‑isolated task execution, smart routing, and plans to make EN stateless, migrate to Kubernetes, and unify batch and streaming services.
This guide explains how to create and manage Kubernetes Secrets and ConfigMaps, covering YAML and kubectl methods, different secret types, mounting techniques, environment variable injection, image pull secrets, and practical examples for secure configuration handling in cloud‑native environments.
This guide walks developers through the evolution from physical and virtual deployments to containerization, explains Kubernetes architecture and core components, demonstrates building a one‑master‑two‑node cluster with kubeadm and Flannel, and details resource management using YAML with imperative and declarative kubectl commands.
This article walks readers through Kubernetes pod orchestration by breaking down the Pod YAML into Resource, Object, Spec, and Status sections, explaining REST API paths, metadata fields, lifecycle phases, health checks, and status reporting to deepen understanding of cloud‑native operations.
The SmartIDE v1.0 release introduces a fully cloud‑native IDE with one‑command CLI deployment, complete Kubernetes mode, ARM processor support, team resource sharing, hybrid VSCode/JetBrains remote connections, WebTerminal, and GitLab CI pipeline integration, providing developers across Windows, macOS, and Linux with a versatile development environment.
This article provides a concise, concept‑level overview of Kubernetes architecture, explaining the roles of master and worker nodes, Pods, networking, scheduling, storage, services, scaling, and controller interactions, illustrated with diagrams to help beginners grasp the system’s complexity.
This tutorial walks readers through the evolution of web deployment, explains core Kubernetes concepts, and provides step‑by‑step instructions for using kubectl to create Ingress, Service, and Deployment resources that run a multi‑instance Node.js backend, culminating in a functional K8S deployment workflow.
This article describes a cloud‑native offline mixed‑deployment solution that leverages Kubernetes to share resources between big‑data clusters and business services, outlines its implementation steps, presents detailed performance comparisons between Yarn and Kubernetes using TPC‑DS, Spark, and Terasort workloads, and discusses production experience and future plans.
Youzan upgraded its real‑time computing engine from Flink 1.10 to 1.13 to meet rising SQL and containerization demands, gaining enhanced SQL syntax, time‑function handling, Window TVF standardization, Hive integration, K8s stability, elastic scaling, richer Kafka and format support, improved metrics and debugging tools, and successfully migrated all custom connectors, UDFs, and SQL jobs to the new Kubernetes‑based platform.
This article provides a comprehensive interview‑style guide to Kubernetes, covering its purpose, master‑node and worker‑node components, detailed architecture, pod health‑checking probes, rolling‑update parameters, image pull policies, label selectors, Service concepts, and common kubectl commands for managing resources.
This article provides a comprehensive introduction to Kubernetes, covering its origin, master‑node and worker‑node architecture, pod health‑checking probes, rolling‑update controls, image pull policies, service concepts, external access, persistent storage options, label selectors, and common kubectl commands, all illustrated with practical YAML examples.
This article compiles 128 high‑frequency Kubernetes interview questions covering fundamentals, architecture, networking, storage, security, and operational best practices, helping developers and engineers prepare comprehensively for K8s‑related job interviews.
This article explains how Kubernetes CSI enables out‑of‑tree persistent storage by detailing the PV lifecycle—Create, Attach, Detach, Mount, Unmount, Delete—and describing the roles of core components such as apiserver, PVController, external‑provisioner, external‑attacher, and kubelet, with code examples and diagrams.
The article walks through diagnosing why a second Kubernetes cluster ignored the upload‑size setting, shows how to inspect the nginx‑ingress‑controller deployment, identify the --configmap argument, and fix the issue by updating the referenced ConfigMap name to nginx‑configuration.
This guide compiles nineteen common Kubernetes problems—from certificate errors and service exposure failures to pod initialization issues and Helm installation errors—providing concise root‑cause analyses and step‑by‑step command solutions to help you quickly troubleshoot and resolve cluster disruptions.
This comprehensive guide explains what Kubernetes is, its architecture and components, pod health‑checking probes, rolling updates, image pull policies, restart strategies, services, label selectors, DaemonSet, Job, persistent volumes, and the full pod lifecycle, providing clear examples and command‑line snippets for each topic.
This comprehensive guide walks beginners through Kubernetes fundamentals, explaining the architecture, core objects such as Pods, Deployments, Services, and Ingress, and provides step‑by‑step instructions for configuring kubectl, deploying resources, managing updates, and troubleshooting common issues.
This article introduces the growing family of k*s projects—k0s, k1s, k3s, k9s, k14s and more—explaining their origins, key features, and how they differ from the mainstream Kubernetes distribution, offering a concise guide for cloud‑native developers.
Learn how to use Kubernetes Descheduler to rebalance uneven pod distribution across nodes by configuring various built‑in strategies, custom policies, filtering options, and deployment methods such as Jobs and CronJobs, with detailed examples and best‑practice guidelines for production clusters.
This tutorial walks through preparing the environment, installing Docker‑CE 18.09.9, configuring prerequisite settings, deploying Kubernetes v1.16.0 master and node components, initializing the cluster, retrieving join commands, and finally installing Flannel networking to achieve a ready‑state cluster on CentOS 7 virtual machines.
This week’s roundup covers Kubernetes 1.16 API deprecations, new managed Prometheus services from Azure and Alibaba Cloud, upcoming KEP enhancements, Knative serving updates, the Kopf operator framework, curated reading links, and a CNCF‑Alibaba cloud‑native course on networking and policies.
This guide walks through the complete process of preparing a Windows Server 2016 host, enabling Hyper‑V and RRAS, installing Docker EE, configuring a transparent Docker network, and joining the node to a Kubernetes 1.9 (or 1.14) cluster, including all required commands and troubleshooting steps.
This tutorial walks you through the complete process of manually installing a Kubernetes 1.9.9 master‑worker cluster on CentOS 7, covering environment preparation, binary downloads, configuration of etcd and Kubernetes components, creation of systemd services, and verification of the deployment.
This guide walks you through installing a Kubernetes (K8S) cluster on CentOS 7.3 in China, covering environment preparation, downloading required packages and images via local mirrors, configuring Docker and the network, initializing the master node with kubeadm, joining worker nodes, and optionally deploying the dashboard and flannel network plugin.
