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DevOps is a set of practices, principles, and tools that bridge the gap between software development (Dev) and IT operations (Ops). Its goal is to enable faster development cycles, improve software quality, and increase collaboration across teams. Traditionally, development and operations worked in silos. Developers wrote code, and operations teams deployed and maintained it. This…

Ansible is an open-source tool for configuration management, automation, and deployment. Developed by Red Hat, Ansible allows IT teams to manage infrastructure as code, ensuring systems are configured consistently and predictably. Why configuration management matters: Manual configuration of servers is error-prone and time-consuming. Configuration management tools like Ansible automate this process, enabling reproducible setups and…

Bash scripting is a powerful way to automate routine tasks in Unix-based systems. Whether you’re managing files, setting up environments, or deploying software, Bash allows you to write scripts that perform complex operations with simple code. Why automate with Bash? Common use cases: Basic structure of a Bash script: bashКопироватьРедактировать#!/bin/bash echo “Starting backup…” cp -r…

Jenkins is one of the most popular open-source tools for implementing Continuous Integration (CI). It automates the process of building, testing, and deploying software, enabling developers to detect errors quickly and deliver updates more reliably. What is Continuous Integration? CI involves automatically testing code every time it’s pushed to a shared repository. This helps catch…

Terraform is an open-source tool developed by HashiCorp that allows you to define and provision cloud infrastructure using a declarative configuration language. It’s a cornerstone of Infrastructure as Code (IaC), enabling automation, consistency, and scalability in cloud environments. Why use Terraform? Terraform works with providers such as AWS, Azure, Google Cloud, and even Kubernetes and…