DevOps and CI/CD: A Comprehensive Handbook for Contemporary Software Development

 DevOps and CI/CD: A Comprehensive Handbook for Contemporary Software Development

In today’s rapidly changing digital world, the development of software needs to happen quickly. Conventional software development is slow. There is also a divide between software development and operations. An effective way to counter these issues is to implement the concept of DevOps.

Blog Overview

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| Introduction to DevOps, CI/CD

What is DevOps?

“DevOps” sprang from a mashup of two other words

Dev - development

OPS - Operations

DevOps is a culture, a practice, and a toolset that unites the operational aspects of technology with the development methodology of making software.

DevOps Objective

The primary

Faster software delivery

Better quality and reliability

Continuous improvement

Process automation

Automation of processes

DevOps aims to end the silos and practice communication and collaboration.

Traditional Development vs DevOps

SDLC encompasses all activities involved

Separate Dev & Ops teams

     Integrated teams

Manual Deployment Automatic Deployment

Slow release cycles & Fast & frequent releases

More errors Fewer errors

Direct vs. Delegated

Principles of DevOps

In order to

*Collaboration* – Developers and operation teams work together

     Developers and operation teams

Automation – Automate build, test, deployment

Continuous Monitoring – Performance Tracking and Errors

Continuous Improvement – Learn and Improve Continuously

Customer Centric - Enhancement in delivering value to consumers

DevOps Lifecycle

Plan - Defining the Requirements and Roadmap

Code – Write and manage code using version control

Build - Compile and build applications

Test - Automated testing for quality assurance

Release – Ready application for deployment

| Deploy – Deploy to production environment

Operate - Maintain and monitor systems

Monitor - Collect Feedback and Metrics

What is CI/CD?

CI/CD is an abbreviation

CI - Continuous Integration

CD – Continuous Delivery / Deployment

CI/CD is an application of the DevOps process, focusing on automating the software build, testing, and deployment process.

Continuous Integration (CI)

CI

Continuous Integration is a practice that involves regularly integrating code changes into a common repository.

CI Key Features:

Exchanging ideas

Developers are constantly writing code

Automatic build process

Automated tests at the unit and integration levels

Detection of bugs at a young age

Advantages of CI:

Bug detection speed increased

Better quality code

Integration problems are made easier by

Continuous Delivery (CD)

Continuous Delivery makes sure that the code can be deployed at all times.

Key Features:

Automated testing

Automatic releasing system

Manual approval prior to production

Continuous Deployment (CD)

As

Continuous Deployment is an advanced process where every code change that has successfully passed the test phase is deployed into production without any human intervention.

Difference Between Delivery and Deployment

     In this section

Continuous Delivery Deployment

Human approval required Automated Completely

Safer for critical apps Faster releases

Applied in banks, government apps  Applied in startups

CI/CD Pipeline Explained

The CI/CD pipeline is a combination of automated tasks:

Code commit

Construct

Automated tests

There

CTF exercises

Deployment en milieu de test

Rollout en producción

Monitoring & feedback

Popular DevOps and CI/CD Tools

Version Control

#

Git

GitHub

GitLab

Bitbucket

CI/CD Tools

Jenkins

GitHub Actions

Description

GitLab CI/

CircleCI

Azure DevOps

Configuration & Infrastructure

Docker

Kubernetes

terraform

Ansible

Cloud Platforms

AWS

Microsoft Azure

Google Cloud

Monitoring Tools

In

Prometheus

Grafana

ELK Stack

DevOps Security (DevSec

It involves incorporating security into the DevOps process.

Security Practices:

Security automation

Automated Security

Vulnerability Scanning

Code analysis

Secure Code Analysis

*   *

Advantages of DevOps and CI/CD Tools

Quick Application Delivery

Lower deployment failures

Better collaboration

Improving system reliability

Fast customer feedback

Reduced operating costs

Use Cases in the Real World

E-commerce websites: Updates and fixes for bugs

Banking Apps  

     Ensuring secure and controlled releases into banking

Cloud Services: Availability and Scalability

Government portals – Trustworthy and secure digital services | Insights | Abbott Laboratories

Career Paths in DevOps

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Popular examples include:

DevOps Engineer

Site Reliability Engineer (SRE)

Cloud Engineer

Build & Release Engineer

Automation Engineer

Required Skills:

Linux & Networking

Cloud computing

Cloud

Scripting (Python, Shell

CI/CD tools

Containers & orchestration

DevOps and CI/CD for Students

Students can begin by:

Learning Git And Linux

Implementation of CI/CD using GitHub Actions

Working with HamsterDAL Deploying applications on the cloud platforms 

Conclusion

 DevOps and CI/CD have revolutionized software development and delivery. By seamlessly integrating automation, teamwork, and optimization, it is now possible to build and deliver high-quality software at a rapid pace. For students and working professionals, DevOps provides an in-demand career path in the current IT domain.