Git and GitHub Mastery: The DevOps Engineer’s Companion

“Git and GitHub Mastery: A DevOps Engineer’s Handbook” is a comprehensive guide tailored for DevOps engineers looking to elevate their skills in version control and collaboration using Git and GitHub. This handbook covers a wide range of topics, including:

1. Fundamentals of Git: From basic commands to advanced branching strategies, readers will gain a solid understanding of Git workflows and best practices.
2. GitHub Essentials: Learn how to effectively use GitHub for version control, collaboration, and project management in a team setting.
3. Advanced Git Techniques: Explore advanced topics such as rebasing, squashing commits, managing conflicts, and optimizing Git workflows for efficient development cycles.
4. DevOps Integration: Discover how Git and GitHub fit into the larger DevOps landscape, including CI/CD pipelines, infrastructure as code, and automated testing.
5. Best Practices and Tips: Benefit from expert tips, tricks, and real-world scenarios to enhance your productivity and streamline your development process.

Branching Out: DevOps Exploration with Git

Git Branching: Your Development Playground. Let’s Create a Branch Named ‘dev’ for Isolating Our Work:

git checkout -b dev

In this ‘dev’ branch, we introduce a file, version01.txt in the Devops/Git/ directory, marked with the message "This is the first feature of our application." Commit this addition with a descriptive message like "Added new feature."

git add .
git commit -m "Added new feature"

This branch allows us to experiment, develop features, and fix bugs in a contained environment without disrupting the main repository.

Reverting and Resetting in Git: Mastering Code Control:

Enter two formidable commands: git reset and git revert. These tools empower us to modify or eradicate changes made in previous commits.

To illustrate, let’s add and commit changes to version01.txt the 'dev' branch:

# While writing the file, ensure the following content
# 1st line >> This is the bug fix in development branch
git commit -m "Added feature2 in development branch"

# 2nd line >> This is gadbad code
git commit -m "Added feature3 in development branch"

# 3rd line >> This feature will gadbad everything from now.
git commit -m "Added feature4 in development branch"

Now, the challenge: restore the file to a previous version where the content is “This is the bug fix in the development branch.” You can accomplish this using either git revert or git reset.

Deciphering Git Rebase vs. Git Merge: Understanding the Differences:

Git Rebase:

git checkout master
git pull origin master
git checkout dev
git rebase master

Git Rebase integrates changes from one branch to another, rewriting commit logs for a cleaner history.

Git Merge:

git checkout master
git pull origin master
git merge dev

Git Merge combines branches while preserving commit logs.

With practical examples, clear explanations, and hands-on exercises, “Git and GitHub Mastery: A DevOps Engineer’s Handbook” equips DevOps professionals to harness the complete capabilities of Git and GitHub in their daily workflows. This empowers DevOps engineers to excel in code management. Remember, practice makes perfect, so dive in, experiment, and witness your version control prowess evolve. Stay tuned for further DevOps explorations, and happy coding!

Enjoy it! That’s It; we are done…

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About the author:
I’m Satish Chand Rundla, an experienced DevOps engineer at Cypik. With a strong focus on automating development processes, my expertise lies in the AWS cloud and Terraform platforms. Currently, I’m part of the team at Cypik, I strive to optimize software delivery and infrastructure management, aiming to increase efficiency and scalability in all aspects of our work.