5 Docker Scenarios Every Developer Should Practice (With Fixes & Best Practices)

So you know the basics of Docker — docker run , docker build , maybe some docker compose up . But do you know what happens when things break? This guide walks you through 5 real-world Docker scenarios that will sharpen your skills around debugging, security, storage, and production-readiness. Scenario 1: The Broken Build 🔨 Goal Fix a broken Dockerfile, then optimize it to be 10x smaller and production-ready. Setup app.py from flask import Flask app = Flask ( __name__ ) @app.route ( ' / ' ) def