🚀 Basic Git & GitHub for DevOps Engineers 🚀

Hey there, DevOps enthusiasts! 👋 Are you ready to embark on a journey to master the powerful tools that drive collaboration and version control in modern software development? Today, we're going to delve into the world of Git and GitHub, where the magic of DevOps truly unfolds! 🌟

🤔 What's Git and Why Should I Care?

Git is like the wizard 🧙 of version control systems! It helps you keep track of changes in your code over time, making collaboration smooth and merging code like a piece of cake 🍰. Whether you're working alone or as part of a team, Git will save the day! 💾

Git Definition - It is an open-source tool that helps to track code by using a version control system which can build different versions of the same software.

🗄️ File System vs. Version Control System (VCS) 🔄

In the mystical realm of software development, two powerful forces stand tall: the traditional File System and the magical Version Control System (VCS). Let's embark on a journey to understand their differences and how they shape our coding adventures! 🌟

🗄️ File System: The Ordinary Storage Chest

📁 Structure: The File System is like a simple storage chest, organizing files and folders on your computer. It provides a place to keep your magical code scrolls and other precious artefacts.

🔑 Access Control: Accessing files in the File System is straightforward. Developers can directly modify files, which can sometimes lead to conflicting changes and tangled spells! 🌀

🕳️ No Time Travel: Unfortunately, the File System has no time-turner magic! There's no way to go back to previous versions of files once they've been changed, leaving us vulnerable to errors and difficult rollbacks.

🔄 Version Control System: The Time-Turner for Code

⏳ History Keeper: The VCS is a wondrous time-turner 🕰️ that captures the history of every file. It stores multiple versions, allowing us to travel back in time to any moment in our coding adventure!

🌌 Branching & Merging: With VCS, we can create parallel universes 🌌 called branches. Developers can experiment with changes without affecting the main code. When ready, they merge their changes back, ensuring a seamless integration.

🔒 Safety & Collaboration: VCS ensures the safety of our code, like a protective charm. It allows multiple developers to collaborate without stepping on each other's toes. Code reviews and teamwork are a breeze! 🤝✨

💾 Complete Backup: VCS keeps a complete copy of the entire project, like a powerful horcrux 💾. So even if our computer's dragon 🐉 decides to eat our files, we're safe!

🔀 File System + VCS = A Potent Potion!

While the File System serves as the foundation for our projects, combining it with VCS amplifies our powers! 💪 It empowers us to work collaboratively, roll back mistakes, and experiment without fear. The synergy of File System and VCS creates a potent potion for successful software development! 🧪🌈

🤔 What is a Version control system?

🔄 Version Control: The Time-Turner for Code 🔄

Hey there, fellow developers and DevOps wizards! 🧙‍♂️ Let's embark on a magical journey through the enchanting realm of version control, also known as source control! 🏰🧪

📜 What is Version Control and Why It's Essential?

In the ever-evolving world of software development, version control is like a precious time-turner 🕰️ that helps us manage changes to our code with finesse. It's the practice of tracking and managing alterations to software code over time, allowing us to work faster, smarter, and with fewer mishaps! 🚀

🔧 The Marvelous Version Control System

Enter the version control system 🛠️, our trusty magical companion on this coding adventure! These software tools work wonders, maintaining a special kind of database that keeps track of every modification to our code.

✨ Advantages of Using Version Control Systems

🏎️ Speed & Agility: As the development environments sprint ahead, version control systems help us keep pace and make changes with effortless agility!
🤝 Team Collaboration: Picture a grand ballroom where all developers dance in harmony! Version control fosters seamless teamwork, minimizing conflicts and maximizing collaboration.
🚨 Safety Net: Just like an invisibility cloak 🧥, version control provides a safety net! If a mistake happens, we can roll back to earlier code versions and save the day!
🌌 Branching & Experimentation: Imagine an endless labyrinth of possibilities 🧭! With branching, we can experiment freely without disrupting the main codebase.
📊 Insightful Analytics: Like a crystal ball 🔮, version control systems reveal valuable insights into project progress and team contributions.

📚 Centralized Version Control System (CVCS) 🏢

Picture a central library 📚 for all your project's files, guarded by a powerful server! In this magical world of CVCS, developers "check out" files from the server, work their coding magic, and then "check in" the updated files. CVCS examples include Subversion and Perforce! 🛡️🔐

📥 Check Out: When you need to work on a file, you take it from the central server, like borrowing a book from the library.

💻 Make Changes: With the file in hand, you work on it, adding or changing code like a wizard casting spells! 🧙✨

📤 Check In: Once your magic is complete, you return the file to the central server, sharing your changes with others! 🏰📜

🧙‍♂️🧙‍♀️ Distributed Version Control System (DVCS) 🌐

Now, imagine each developer having a magical mirror of the entire project! 🌌 That's the enchanting world of DVCS! When developers "clone" the repository, they get a complete local copy with history, branches, and all! DVCS examples include Git, Mercurial, and Darcs! 🔮💻

👥 Clone Repository: Developers create their own personal copies of the entire project. It's like having a magical duplicate on their computers! 🪄💾

🧙‍♂️🌳 Work Independently: Armed with their local copy, developers can work on the project without a constant internet connection. Each developer is free to work on their part of the magic! 🧪💫

🌀 Merge Changes: When it's time to combine everyone's magic into the main project, developers gather their spells and "merge" their changes. It's like putting all the pieces of a puzzle together! 🔀💖

So, whether you prefer a central library or magical mirrors, version control is the key to successful software development! 🗝️✨ May your coding adventures be filled with bug-free code and harmonious collaborations! 🌈🧙‍♂️ Happy coding! 🚀🎉

🛡️ Guarding Against Code Mistakes

Even the most skilled sorcerers make mistakes! 🧙‍♀️ But fear not, with version control, we can undo those mishaps with a flick of the wand:

🕳️ Time Travel: Use the version control system to go back in time and compare earlier code versions. Discover the root of the problem and cast a spell to fix it!
📝 Code Reviews: Let's gather around the cauldron and conduct code reviews! Team members can collaborate, share feedback, and fine-tune the code before it goes live.
🪄 Merge Magic: When it's time to integrate changes, the version control system works its merge magic! It combines different contributions into a cohesive masterpiece.

🌟 Leveling Up with DevOps

For DevOps teams, version control is like the philosopher's stone 💎! It reduces development time and paves the way for successful deployments:

🚀 Continuous Integration: With version control, we seamlessly integrate code changes into the main project, ensuring a constant flow of improvements.
🌐 Infrastructure as Code: Embrace the power of version control to manage infrastructure changes. Now, your infrastructure evolves like magic!
🔄 Continuous Deployment: Automate the deployment process with confidence! Version control ensures a smooth and reliable journey to production.

So, fellow developers and DevOps mavens, let's cherish the power of version control! Embrace it as a fundamental tool in our magical arsenal, always ready to support us on our path to excellence. May our code be bug-free, our deployments smooth, and our collaborations enchanting! 🌈✨ Happy coding, and may the version control be with you! 🪄🧙‍♀️🧙‍♂️

⚙️ Basic Concepts: Repositories and Commits

📚 Repositories: Imagine a magical box 📦 where all your project's code and history are stored. That's a Git repository! It houses all the files, folders, and everything you need to build your project.

💾 Commits: Whenever you make changes to your code, Git creates a snapshot 📸 of those changes. These snapshots are called commits! You can think of them as milestones that mark your progress.

🔨 Basic Commands to Get Started

Enough chit-chat! Let's get our hands dirty with some basic commands! Type these into your terminal and witness the Git magic ✨:

git init: Creates a new Git repository in your project folder. Abracadabra! 🧙‍♂️
git status: Check the status of your repository. Git will tell you what's changed and what's ready to be committed.
git add <filename>: Adds a specific file to the staging area. Think of it as placing items on a conveyor belt, ready for the next step!
git commit -m "Your message here": Commit your changes with a descriptive message 📝. This is like sealing an envelope with your changes inside!
git log: Take a look at all the magical commits you've made. It's like flipping through a magical history book! 📖

🤝 Collaboration with GitHub

Now, let's introduce you to GitHub, the world's most popular platform for hosting Git repositories and collaborating with other developers! 🎉

🔑 Getting Started with GitHub

Sign up for a GitHub account if you haven't already. It's free and takes less time than saying "Abracadabra"! 🪄
Create a new repository on GitHub by clicking on the "New" button. Fill in the name, add a description, and voilà! Your remote repository is ready to roll 🎢.
Link your local repository to the remote one using the command git remote add origin <remote repository URL>. Now, your local magic 🪄 can sync with the GitHub magic 🌟.

🔄 Pushing and Pulling

📤 Push: When you want to send your commits to GitHub, use git push origin <branch-name>. Your changes will soar to the cloud ☁️.

📥 Pull: To fetch changes made by others, type git pull origin <branch-name>. It's like collecting the latest magic spells from the GitHub spellbook 📚.

Task:

Install Git on your computer (if it is not already installed). You can download it from the official website at https://git-scm.com/downloads
Create a free account on GitHub (if you don't already have one). You can sign up at https://github.com/
Learn the basics of Git by reading through the video This will give you an understanding of what Git is, how it works, and how to use it to track changes to files.

Exercises:

Create a new repository on GitHub and clone it to your local machine
Make some changes to a file in the repository and commit them to the repository using Git
Push the changes back to the repository on GitHub

Siddhiprada Mohapatro