Openshift: Lab 7 – Scale applications using the oc CLI tool
Rajesh KumarI’m a DevOps/SRE/DevSecOps/Cloud Expert passionate about sharing knowledge and experiences. I have worked at Cotocus. I share tech blog at DevOps School, travel stories at Holiday Landmark, stock market…
Read more »Openshift: Lab 6 – Scale applications using the OpenShift web console
Rajesh KumarI’m a DevOps/SRE/DevSecOps/Cloud Expert passionate about sharing knowledge and experiences. I have worked at Cotocus. I share tech blog at DevOps School, travel stories at Holiday Landmark, stock market…
Read more »Openshift: Lab 5 – Install an application from a source code using the oc CLI tool
Rajesh KumarI’m a DevOps/SRE/DevSecOps/Cloud Expert passionate about sharing knowledge and experiences. I have worked at Cotocus. I share tech blog at DevOps School, travel stories at Holiday Landmark, stock market…
Read more »Openshift: Lab 4 – Install an application from a Linux container image using the oc CLI tool
Rajesh KumarI’m a DevOps/SRE/DevSecOps/Cloud Expert passionate about sharing knowledge and experiences. I have worked at Cotocus. I share tech blog at DevOps School, travel stories at Holiday Landmark, stock market…
Read more »Openshift: Lab 3 – Install an application from a Linux container image repository using the OpenShift web console
Rajesh KumarI’m a DevOps/SRE/DevSecOps/Cloud Expert passionate about sharing knowledge and experiences. I have worked at Cotocus. I share tech blog at DevOps School, travel stories at Holiday Landmark, stock market…
Read more »Openshift: Lab 2 – Install an application from source code in a GitHub repository using the OpenShift web console
Rajesh KumarI’m a DevOps/SRE/DevSecOps/Cloud Expert passionate about sharing knowledge and experiences. I have worked at Cotocus. I share tech blog at DevOps School, travel stories at Holiday Landmark, stock market…
Read more »Openshift: Lab 1 – Use the terminal window within the Red Hat OpenShift web console
In this lesson, you will learn how to access the terminal window within the Red Hat OpenShift web console and use it to work with various OpenShift and Kubernetes resources…
Read more »Openshift: Lab 14 – Setting up and using OpenShift Serverless Functions
Manual – https://docs.redhat.com/en/documentation/red_hat_openshift_serverless/1.30/html/functions/index OpenShift Serverless Function is a feature of Red Hat OpenShift that enables you to build, deploy, and manage event-driven serverless workloads using the Function-as-a-Service (FaaS) paradigm, directly…
Read more »Openshift: Top oc Commands
Absolutely! Here’s a comprehensive list of the Top 100 most frequently used oc (OpenShift CLI) commands, with a quick explanation for each. This will help you navigate OpenShift clusters efficiently,…
Read more »How to Streamline Financial Operations for Business Growth
Efficient financial operations are essential to running and scaling a successful business. Managing cash flow, forecasting budgets, and simplifying transactions are all critical areas where improved systems can make a…
Read more »Openshift: Lab 12 – Build your application from a container image
In this lesson, you will: Build the application from a container image To build your application from a container image, switch to the Developer view in your OpenShift dashboard (Figure 8): Next,…
Read more »Openshift: Lab 11 – Build your application from source code
In this lesson, you will: Get that cluster Once you’ve secured your own cluster, select Start using your sandbox to begin your future (Figure 1). Build the application from source code To…
Read more »Openshift: Lab 13 – How to deploy a Java application on Kubernetes
Prerequisites What you will learn In this learning path, you will: How long will this learning path take? In this lesson, you will: Creating the deployment The Pet Clinic application uses…
Read more »Kubernetes: Working with ReplicationController
A ReplicationController is a Kubernetes controller that ensures that a specified number of pod replicas are running at any one time. In other words, a ReplicationController makes sure that a…
Read more »Complete List of Methods to Deploy Kubernetes
There are many ways to deploy Kubernetes, depending on your needs (learning, production, cloud-native, on-premises, bare metal, multi-cloud, etc). Here’s a structured list of the main ways people deploy Kubernetes…
Read more »List of Popular Light Apps for Schedule Appointment and Calendar Management Online Websites
Based on comprehensive research, here’s a curated list of the most popular and lightweight appointment scheduling and calendar management applications and websites in 2025: Free and Light Appointment Scheduling Apps…
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Docker Tutorials: How to Install Docker in Ubuntu?
Install Docker Engine in Ubuntu NOTE – All commands you must run as root user or add a current user into a linux group name called “docker” How to beocme…
Read more »How to Login to Linux Server using Putty?
Download Putty Source – https://www.chiark.greenend.org.uk/~sgtatham/putty/latest.html Direct Link of Putty – https://the.earth.li/~sgtatham/putty/latest/w64/putty.exe Open Putty and Add IP address & using Password Open Putty and Add IP address and using PPK file…
Read more »Kubernetes: Deploying AWS Load Balancer Controller with Terraform
Absolutely, deploying the AWS Load Balancer Controller (ALB Controller) in production via Terraform is now a very common, robust, and recommended practice. There are official Terraform modules and documented best…
Read more »Difference between AWS Load Balancer Controller Vs Kubernetes Gateway API Controller for AWS VPC Lattice
AWS Load Balancer Controller vs Kubernetes Gateway API Controller for AWS VPC Lattice Overview Table Feature AWS Load Balancer Controller Kubernetes Gateway API Controller for VPC Lattice Primary Purpose Integrate…
Read more »Google Vertex AI API
Google Vertex AI API is the main cloud API provided by Google Cloud for building, deploying, and managing machine learning (ML) and generative AI models at scale. It’s a comprehensive…
Read more »Database Backup & Recovery Plan – A Complete Guide
I’ll give you a full, all-in-one guide for production-grade MySQL (and general relational DB) backups that covers: This will be relevant for MySQL/MariaDB primarily, but the approaches will map to…
Read more »Helmsman Tutorial: From Beginner to Advanced
1. Introduction to Helmsman What is Helmsman? Helmsman is an open-source tool that lets you declare and manage Helm chart deployments as code, using a simple Desired State File (DSF)…
Read more »Helmfile Tutorial: From Beginner to Advanced
1. Introduction to Helmfile What is Helmfile? Helmfile is an open-source tool that lets you declare, manage, and deploy multiple Helm charts as a unified, version-controlled “desired state” for your…
Read more »Helmwave Tutorial: From Beginner to Advanced
1. Introduction to Helmwave and Its Core Concepts Helmwave is a modern tool for orchestrating complex Helm deployments, enabling you to manage, templatize, and execute multiple Helm chart releases—in parallel…
Read more »Helmfile vs Helmsman vs Helmwave: Comparing Kubernetes Release Management & Templating
All three are popular open-source tools for managing Helm charts and complex Kubernetes deployments, but they each have different approaches and features. Here’s a clear, practical overview: 1. Helmfile What…
Read more »Kubernetes Troubleshooting: Pods in Pending – Causes & Fixes
Below is a complete, production-grade list of all common reasons why a Kubernetes pod stays in Pending state, along with detailed solutions, commands, and how to verify and fix each…
Read more »Kubernetes Tutorials: Pod Load balancing using Service
In Kubernetes, a Service is an abstraction that defines a logical set of pods and a policy by which to access them. It provides a stable network endpoint (usually an…
Read more »Kubernetes Service Example Programs
Here’s a complete YAML file that contains three Deployments and their corresponding Services: Each container runs on port 80. ✅ Full Kubernetes YAML (deployment-and-services.yaml) 🚀 Usage To apply this YAML:…
Read more »artisan Tutorials: php artisan passport
When you run php artisan passport:install, Laravel attempts to do the following: Running php artisan passport:install is a crucial setup step when using Laravel Passport for API authentication. Here’s a…
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