devops-notes/10_GitHub_DevOps_Workflow.md

GitHub – DevOps Workflow (Day 10)

What is GitHub?

GitHub is a cloud platform to host Git repositories. It allows teams to collaborate, review code, and trigger CI/CD pipelines.

DevOps engineers use GitHub daily.

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Why GitHub is Important for DevOps?

• Central code storage
• Team collaboration
• CI/CD integration
• Code reviews and approvals

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Create GitHub Account

Go to https://github.com and create a free account.

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Connect Local Repository to GitHub

Create a new repository on GitHub (do NOT add README).

Then run:

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

Verify:

git remote -v

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Push Code to GitHub

git push -u origin main

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Clone a Repository

git clone https://github.com/username/repo-name.git

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Pull Latest Changes

git pull origin main

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GitHub DevOps Workflow

1. Create feature branch
2. Push branch to GitHub
3. Open Pull Request
4. Code review & approval
5. Merge to main
6. CI/CD deploys automatically

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Pull Requests (PR)

A Pull Request is a request to merge code into the main branch. Used for safe deployments and team collaboration.

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Real DevOps Scenario

Multiple developers working together:

• Everyone works on own branch
• PRs ensure stability
• CI checks before merge

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Common Mistakes

• Pushing directly to main
• Not pulling latest changes
• Ignoring PR reviews

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DevOps Rule

✅ Always use Pull Requests
❌ Never push directly to main

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Summary

Today I learned GitHub basics for DevOps including clone, push, pull, and Pull Request workflow used in real companies.