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Understanding Edge Computing Edge computing is a distributed computing paradigm that brings computation and data storage closer to the sources of data. This approach enables processing to occur where data is actually generated, rather then sending all data to centralized cloud infrastructure. By deploying computing capabilities at the network e ...

Prerequisites Before starting, ensure you're machines meet these requirements: One or more machines running CentOS 7.x (x86_64) Hardware: minimum 2GB RAM, 2 CPUs, 30GB disk space Network connectivity between all machines Internet access for pulling container images Swap disabled Objectives Install Docker and kubeadm on all nodes Initialize t ...

Cloud-native architectures rely heavily on ConfigMaps and Secrets for externalizing application settings. However, modifying these resources does not inherently propagate changes to running containers. Environment variables injected via env remain static until a pod restart. File-based mounts eventually reflect updates but often introduce sligh ...

Diagnostic Workflow: The Three Core Techniques When troubleshooting issues in a Kubernetes cluster—such as unresponsive nodes, crashing Pods, or network failures—it's essential to move beyond surface-level symptoms. A structured diagnostic approach significantly improves resolution speed and accuracy. The following three techniques form the fou ...

Common Pod Spec Fields spec.containers <[]object> spec.containers.name <string>: Container name, required and unique. Cannot be changed after creation. spec.containers.image <string>: Image path/name:tag. spec.containers.imagePullPolicy <string>: Image pull policy: Always, Never, IfNotPresent. Default is IfNotPresent, e ...

Modern enterprises increasingly require powerful search and analytics capabilities to handle growing data volumes. Easysearch emerges as an enterprise-grade search engine that enables organizations to build high-performance, scalable data retrieval systems. In today's cloud computing landscape, containerization has become the standard approach ...

CI/CD Workflow Overview Transitioning from traditional virtual machine-based CI/CD to a Kubernetes-native approach offers significant advantages in resource utilization and environment consistency. Traditional Workflow: CI: Developers push code to GitLab -> Jenkins triggers build on a static slave -> Code scanning and compilation -> A ...

Kubernetes relies on a decoupled, event-driven architecture to manage workload placement across cluster nodes. At the heart of this system lies the List-Watch mechanism, which enables components to react to state changes in real time without polling. This mechanism allows the API Server to notify components like the Scheduler, Controller Manage ...

Setting Up a Kubernetes Cluster with kubeadm Infrastructure Overview We will create a Kubernetes cluster using Vagrant. The environment consists of three CentOS-based virtual machines: Hostname IP Address master1 192.168.33.11 node1 192.168.33.12 node2 192.168.33.13 Vagrantfile Configuration Below is the Vagrantfile used to define ...

Chart Structure and Configuration A Helm chart is a collection of files that describe a related set of Kubernetes resources. The core components include Chart.yaml, values.yaml, and template files under the templates/ directory. Chart.yaml This file defines metadata about the chart: apiVersion: v1 name: k8sapp version: 0.1.1 appVersion: "1 ...