#devops Development Tutorials & Tips | Roast Dev

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How to configure passwordless authentication using Ansible

There are many method in ansible for configuring password-less Authentication like: copy public key to remote hosts Test SSH Access Configure Ansible Invertory Run Ansible ping Test Generate SSH Key...

05.04.2025 0 Read More

Kubernetes Admission Controllers: The Gatekeepers You Didn't Know You Needed

When we talk about Kubernetes security and governance, most discussions revolve around RBAC, Network Policies, or Pod Security. But there’s a lesser-known yet powerful layer that silently governs ev...

05.04.2025 0 Read More

Running Linux in QEMU: How to Build a VM from an ISO

Running Linux in QEMU for Testing on IBM PowerPC (or x86) I recently had the chance to work on an IBM Power 6 system running Linux—a first for me. While I’ve spent years working with x86 ...

05.04.2025 0 Read More

Smooth Database Migrations in a Fast-Moving World

Ever tried updating a live app while users are clicking around, adding stuff to carts, or signing up? Yeah, moving fast is great, until you need to migrate a database. This post is all about making th...

05.04.2025 0 Read More

Kubernetes Isn’t for Everyone: When Simplicity Beats Scale

Kubernetes (K8s) has long been the gold standard for container orchestration, enabling scalable and resilient cloud-native applications. However, despite its dominance, some companies are reevaluating...

05.04.2025 0 Read More

Expresiones Regulares (RegEx): Guía Esencial para Desarrolladores - Nota de Repaso

1. Introducción y Objetivos de Aprendizaje: ¡Bienvenidos al fascinante mundo de las Expresiones Regulares! Piensen en ellas como un "lenguaje" súper compacto y especializado para buscar, encontrar ...

05.04.2025 0 Read More

How to Build a CI/CD Pipeline with GitHub Actions and Docker – Step-by-Step

How to Build a CI/CD Pipeline with GitHub Actions and Docker – Step-by-Step Want to automate your application deployment process? Using GitHub Actions with Docker is one of the most efficient ways t...

05.04.2025 0 Read More

How to handle alerts from various tools such as Grafana, Kibana, Sentry, AWS, etc.

In today’s DevOps world, managing alerts from multiple monitoring tools can quickly become difficult. Tools like Grafana, Kibana, Sentry, and AWS CloudWatch each provide important updates about syst...

05.04.2025 0 Read More

How to Connect a React App with MySQL Database

Are you looking to build a dynamic React application with a MySQL database backend? In this post, we’ll walk you through how to connect a React app with a MySQL database using PHP as the intermediar...

05.04.2025 0 Read More

5 Common Mistakes Beginners Make in CSS (And How to Fix Them)

When I started learning CSS, it felt like magic… until nothing worked as expected. Here are five mistakes I made (and how you can avoid them): Using IDs Instead of Classes Mistake: button {...

05.04.2025 0 Read More

How to configure passwordless authentication using Ansible

Kubernetes Admission Controllers: The Gatekeepers You Didn't Know You Needed

Running Linux in QEMU: How to Build a VM from an ISO

Smooth Database Migrations in a Fast-Moving World

Kubernetes Isn’t for Everyone: When Simplicity Beats Scale

Expresiones Regulares (RegEx): Guía Esencial para Desarrolladores - Nota de Repaso

How to Build a CI/CD Pipeline with GitHub Actions and Docker – Step-by-Step

How to handle alerts from various tools such as Grafana, Kibana, Sentry, AWS, etc.

How to Connect a React App with MySQL Database

5 Common Mistakes Beginners Make in CSS (And How to Fix Them)

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