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Oliver Buchannon
Arbaz M

Senior DevOps Engineer sharing real production incidents, CI/CD failures, and on-call lessons. Creator of LearnWithDevOpsEngineer.

First Contact with Kubernetes

Feb 10, 2026

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3 min read

First Contact with Kubernetes

I Don’t Want to Babysit Containers Anymore

Arbaz M
Arbaz M
Life Without Kubernetes

Feb 6, 2026

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3 min read

Life Without Kubernetes

When Docker Compose Starts Lying to You

Arbaz M
Arbaz M
PostgreSQL Didn’t Break at Scale

Jan 30, 2026

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3 min read

PostgreSQL Didn’t Break at Scale

What really fails when systems grow faster than discipline

Arbaz M
Arbaz M
The Most Dangerous Production Risk Isn’t a Bug

Jan 27, 2026

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2 min read

The Most Dangerous Production Risk Isn’t a Bug

On-call burnout and the decisions it forces engineers to make

Arbaz M
Arbaz M
⚙️ Jenkins Multibranch Pipeline — Why Most Setups Quietly Fail

Jan 20, 2026

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3 min read

⚙️ Jenkins Multibranch Pipeline — Why Most Setups Quietly Fail

A real DevOps setup built using only official documentation

Arbaz M
Arbaz M
⚡When the War Room Made the Incident Worse

Jan 16, 2026

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3 min read

⚡When the War Room Made the Incident Worse

A real incident where the war room became the problem

Arbaz M
Arbaz M
⚡ How I Actually Learned DevOps (Before Tutorials Took Over)

Jan 13, 2026

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3 min read

⚡ How I Actually Learned DevOps (Before Tutorials Took Over)

Documentation, failure, and real-world thinking — with Jenkins as one example

Arbaz M
Arbaz M
⚡ Day 17 — The Timeout Was Perfectly Tuned... and Still Wrong

Jan 9, 2026

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3 min read

⚡ Day 17 — The Timeout Was Perfectly Tuned... and Still Wrong

DevOps 30-Day Transformation Challenge — Real Incidents You’ll Actually See at Work

Arbaz M
Arbaz M
When the System Didn’t Fail... It Attacked Itself

Jan 7, 2026

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3 min read

When the System Didn’t Fail... It Attacked Itself

DevOps 30-Day Transformation Challenge — Real Incidents You’ll Actually See at Work

Arbaz M
Arbaz M
⚡Day 15 — The Logs Looked Fine... and That’s Why We Missed It

Dec 30, 2025

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4 min read

⚡Day 15 — The Logs Looked Fine... and That’s Why We Missed It

DevOps 30-Day Transformation Challenge — Real Incidents You’ll Actually See at Work

Arbaz M
Arbaz M
A Real DevOps Learning Path (No Shortcuts)

Dec 26, 2025

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3 min read

A Real DevOps Learning Path (No Shortcuts)

Real systems. Real failures. Real DevOps work.

Arbaz M
Arbaz M
⚡Not Your Code — Your Docker Image Is Vulnerable

Dec 20, 2025

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4 min read

⚡Not Your Code — Your Docker Image Is Vulnerable

Docker Hardened Images Explained — A Real DevOps Security Blind Spot

Arbaz M
Arbaz M
⚡Day 5 — One Small Change Broke Everything (Cascading Failure)

Dec 16, 2025

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5 min read

⚡Day 5 — One Small Change Broke Everything (Cascading Failure)

DevOps 30-Day Transformation Challenge — Real Incidents You’ll Actually See at Work

Arbaz M
Arbaz M
⚡Day 1 — The Deployment That Looked Perfect... Until Users Said It’s Broken

Dec 12, 2025

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6 min read

⚡Day 1 — The Deployment That Looked Perfect... Until Users Said It’s Broken

DevOps 30-Day Transformation Challenge — Real Incidents You’ll Actually See at Work

Arbaz M
Arbaz M
⚡PVC Stuck in Pending — Real Storage Debugging (EP3)

Dec 9, 2025

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6 min read

⚡PVC Stuck in Pending — Real Storage Debugging (EP3)

Kubernetes Simulation Series — Incidents You’ll Actually See at Work

Arbaz M
Arbaz M
⚡CrashLoopBackOff — Real Production Debugging (EP1)

Dec 4, 2025

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5 min read

⚡CrashLoopBackOff — Real Production Debugging (EP1)

Kubernetes Simulation Series — Incidents You’ll Actually See at Work

Arbaz M
Arbaz M
⚡Model Drift & Monitoring — Catching AI Failures Before Users Do (EP6)

Dec 2, 2025

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5 min read

⚡Model Drift & Monitoring — Catching AI Failures Before Users Do (EP6)

MLOps Series — How Real Companies Watch Their Models in Production

Arbaz M
Arbaz M
⚡CI/CD for AI — Auto Retrain, Auto Test, Auto Reject, Auto Promote (EP5)

Nov 29, 2025

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4 min read

⚡CI/CD for AI — Auto Retrain, Auto Test, Auto Reject, Auto Promote (EP5)

MLOps Series — How Real Companies Protect Production Models

Arbaz M
Arbaz M
⚡Fixing the Model — Building the FIRST Real MLOps Pipeline (EP4)

Nov 27, 2025

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4 min read

⚡Fixing the Model — Building the FIRST Real MLOps Pipeline (EP4)

MLOps Series — Preprocessing + Packaging Done the Right Way

Arbaz M
Arbaz M
⚡Deployed the Model... and It Failed Instantly — EP3

Nov 25, 2025

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4 min read

⚡Deployed the Model... and It Failed Instantly — EP3

MLOps Series — FastAPI + Docker Deployment (Real-World Failure)

Arbaz M
Arbaz M
⚡Why ML Models Fail Real Users — EP2

Nov 22, 2025

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4 min read

⚡Why ML Models Fail Real Users — EP2

MLOps Series — Recreating the “Perfect Notebook, Broken Production” Problem

Arbaz M
Arbaz M
⚡How My First ML Model Broke in Production -EP1

Nov 20, 2025

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4 min read

⚡How My First ML Model Broke in Production -EP1

MLOps Series — Where Real AI Problems Begin

Arbaz M
Arbaz M
⚡ The Hard Truth Nobody Tells You About Becoming a DevOps Engineer in 2025

Nov 18, 2025

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4 min read

⚡ The Hard Truth Nobody Tells You About Becoming a DevOps Engineer in 2025

DevOps Labs — The Reality Behind the Job

Arbaz M
Arbaz M
⚡ Enterprise-Scale Monitoring Setup | Multi-Service Prometheus + Grafana

Nov 11, 2025

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3 min read

⚡ Enterprise-Scale Monitoring Setup | Multi-Service Prometheus + Grafana

DevOps Labs — Where Monitoring Meets the Real World

Arbaz M
Arbaz M
⚡ Alert Escalation in Prometheus + Slack 🚨 | Dev vs On-Call Routing Setup

Nov 4, 2025

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3 min read

⚡ Alert Escalation in Prometheus + Slack 🚨 | Dev vs On-Call Routing Setup

DevOps Labs — Teaching Your System Who to Call for Help

Arbaz M
Arbaz M
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