Category: OpenShift Learning

OpenShift v4 Troubleshooting Notes from Experts (2024)! Here with 50 problem scenarios and cmd references. Keep in mind that the commands and solutions may vary based on the specific details of your OpenShift environment. 1. Problem: Node Not Ready    – Solution:      oc get nodes      oc describe node 2. Problem: PersistentVolumeClaim…

Delete Pod which struck with Terminating State: Apply –grace-period=0 –force oc delete pod pod-name-1-deploy -n myproject –grace-period=0 –forcewarning: Immediate deletion does not wait for confirmation that the running resource has been terminated. The resource may continue to run on the cluster indefinitely.pod “jenkins-1-deploy” deleted Delete Project which struck with Terminating State: Reference: https://www.redhat.com/sysadmin/openshift-terminating-state Further Notes:…

OpenShift Day to Day Tasks: 1. Cluster Installation and Setup: Install OpenShift cluster.Configure cluster networking.Set up storage classes.Define persistent storage for applications.Configure authentication and authorization. Node Management: Add new nodes to the cluster.Remove nodes from the cluster.Monitor node health and capacity.Scale node resources based on workload. Application Deployment: Deploy applications using YAML manifests.Manage application deployments…

Lab Exercise 1: Deploying a Sample Application Objective: Deploy a simple web application to OpenShift. Lab Exercise 2: Scaling Applications Objective: Learn how to scale applications in OpenShift. Lab Exercise 3: Configuring Persistent Storage Objective: Set up persistent storage for an application. Lab Exercise 4: Implementing CI/CD with Jenkins Objective: Set up a Jenkins pipeline…

OpenShift Learning Roadmap: Stage 1: Understanding Containers Introduction to Containers: Learn the basic concepts of containers, including what they are, how they work, and their advantages.Recommended Resource: Docker Overview Docker Basics: Dive into Docker, the most widely used containerization platform.Learn how to create, run, and manage containers.Recommended Resource: Docker Documentation Stage 2: Introduction to Kubernetes…

OpenShift Sample Case Study (Tech Corp) Sample Applications of OpenShift in Enterprise Environments Abstract: This case study explores the real-world applications of OpenShift, a popular container orchestration platform, in enterprise environments. It showcases how OpenShift is utilized by a fictional Fortune 500 company, “TechCorp Inc.,” to address specific challenges and reap the benefits of containerization…

Customers Using OpenShift Product and Hiring Resources for OpenShift! Below are the companies that are Hiring for OpenShift Candidates: Please note: This data keep Changing. This data may not be accurate as well. This is for information purpose only and we do not take any responsibility if the data is not correct. 1. Red Hat (the…

Day to Day productivity: Learn OpenShift Basics Please note: You may need to adapt these commands to your specific use case and environment. Youare always requested to refer the Red Hat Official Document for accurate commands. 1. Log in to OpenShift cluster:oc login 2. View your current context:oc config current-context 3. Create a new project:oc…

What is Container? Containers are a lightweight and efficient method of packaging and running applications and their dependencies. They provide a consistent environment for applications to run in, making it easier to develop, test, and deploy software across different computing environments. Two popular containerization technologies are Docker and Podman. What is Docker:Docker is one of…

OpenShift Data Foundation Overview: OpenShift Data Foundation (ODF) is a data services platform offered by Red Hat, designed to simplify data management for containerized applications in a Kubernetes environment. It provides a comprehensive data storage and management solution, making it easier for developers and operators to handle data-intensive workloads in containerized applications. ODF is typically…