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The following procedure creates a Kubernetes cluster using four worker VMs and one master VM (a total of five virtual machines). You can manage this cluster from you're local workstation or any preferred environment. Before You Begin For a simplified setup with a graphical user interface, consider using Google Kubernetes Engine (GKE) to provisi ...

Environment Preparation 1.1 Cloning GitLab Repository mkdir /root/gitlab/ cd /root/gitlab/ git clone http://172.17.17.84:85/java/java.git 1.2 Setting Up Harbor Registry Login and create a project named demo in Harbor. docker login reg.ctnrs.com # Username: admin # Password: harbor12345 docker tag <source-image> reg.ctnrs.com/demo/java-de ...

What is a Pod? A Pod is the smallest deployable unit in Kubernetes, representing a single instance of a running process within a cluster. It acts as a wrapper for one or more application containers. Pod Deployment Models Two primary models exist for deploying applications within Pods: Single-container Pod: The most common pattern, where a sing ...

Prerequisites Ensure NVIDIA drivers are installed on each node before proceeding. Step 1: Install NVIDIA Container Runtime Install the nvidia-container-runtime package on each node: yum install nvidia-container-runtime Step 2: Configure Docker Edit /etc/docker/daemon.json to configure Docker to use the NVIDIA runtime: { "default-runtime ...

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 ...