SRJahirTech

DevOps Roadmap — Part 6: Git & Version Control

Agar DevOps ka backbone kuch hai, toh woh Git hai.

Automation scripts, Docker files, CI/CD pipelines — sab Git ke bina meaningless hain.

What Is Version Control?

Version control ka matlab:

• Code ka history rakhna
• Changes track karna
• Team ke sath safely kaam karna

Git bina DevOps possible nahi hai.

Why DevOps Engineers Need Git

• CI/CD pipelines Git se trigger hoti hain
• Infrastructure as Code Git me store hota hai
• Rollback possible hota hai

Production systems me “undo” sirf Git deta hai.

Install Git

sudo apt update
sudo apt install git -y

git --version

Basic Git Configuration

git config --global user.name "Your Name"
git config --global user.email "youremail@example.com"

Ye identity commits ke sath store hoti hai.

Create Your First Repository

mkdir devops-project
cd devops-project
git init

Ab ye folder Git controlled ho gaya.

First Commit

echo "DevOps Learning" > readme.txt

git status

git add .
git commit -m "Initial commit"

Commit = snapshot of your project.

Understanding Git Workflow

• Working Directory → files you edit
• Staging Area → files ready for commit
• Repository → saved history

DevOps automation always follows this flow.

Branches — Safe Experimenting

git branch dev

git checkout dev

Production directly edit karna suicide hai. Branches safety dete hain.

Merge Branches

git checkout main
git merge dev

CI/CD pipelines yahin se start hoti hain.

GitHub — Remote Repositories

Git local hota hai, GitHub cloud me hota hai.

git remote add origin https://github.com/username/repo.git

git push -u origin main

Common DevOps Mistakes

• Secrets Git me commit karna
• Direct main branch pe kaam
• No commit messages

Git discipline = DevOps discipline.

What Comes Next?

Ab jab code versioned hai, next step hai Containers.