Day 1 – Fundamentals of DevOps 🚀

.📘 Day 1 – Fundamentals of DevOps

👋 Introduction

Starting today, I’m diving into DevOps fundamentals as part of a 45-day free course led by Abhishek Veeramalla. This video kicks off with the basics—what DevOps really means, its cultural significance, and why it matters in modern software delivery.

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🧠 What I Learned Today

• What is DevOps?
  DevOps is a culture and practice designed to improve an organization’s ability to deliver applications swiftly and reliably. Its purpose is to make application delivery faster and smoother.(Scribd, YouTube)

• Why DevOps?
  Imagine an organization that takes 10 days to release new features. With DevOps, you reduce that to minutes or hours through automation, quality checks, testing, and monitoring.(Scribd)

• Key Pillars (The 4 Pillars of DevOps):

  1. Automation: Replaces manual steps like builds and deployments.

  2. Quality: Ensures robust and stable releases.

  3. Continuous Monitoring (Observability): Tracks application health in real time.

  4. Continuous Testing: Validates changes automatically to catch issues early.

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🛠️ Practical Takeaways

Use this refined definition in interviews or blog intros:

“DevOps is a process for improving application delivery by ensuring automation, quality, continuous monitoring, and continuous testing. This accelerates delivery while maintaining reliability.”(Scribd)

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🧩 Real-World Context

• Traditional Process (Pre-DevOps): Multiple handoffs between developers, system administrators, release engineers, and testers—a slow, error-prone workflow that could take days or weeks.

• DevOps Revolution: Creates a unified culture that collapses silos between Dev and Ops, speeds up delivery, and builds trust across the team.

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🤝 How to Introduce Yourself as a DevOps Engineer

During interviews, focus on:

• Your DevOps experience and relevant background (e.g. system admin, release engineering)

• Your responsibilities around automation, quality assurance, monitoring, and testing(Scribd)

• Tools you’ve worked with (like GitHub Actions, Jenkins, Docker, Kubernetes, Ansible, Terraform)—when ready to dive deeper(Scribd)

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✅ Day 1 Checklist

• Understand and memorize what DevOps is and why it's essential

• Learn the four key pillars: automation, quality, monitoring, and testing

• Prepare a polished self-introduction for DevOps roles

• Watch and re-watch the video to internalize concepts

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🚀 What’s Next?

Over the upcoming days, I’ll be building on this foundation with posts on:

• Setting up CI/CD pipelines with GitHub Actions

• Working with Docker and containerization

• Deploying on Kubernetes

• Automation with Ansible and Terraform

• Observability with Prometheus, Grafana, ELK stack, and more

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