While working through my DevOps journey (Week 13), I deployed a Node.js app to AWS EC2 and compared single-stage vs multi-stage Docker builds.
Here’s what I learned 👇
🐳 Simple Dockerfile
Uses a full Node.js base image.
Includes build tools + dependencies.
Final size: 1.2GB.
⚡ Multi-Stage Dockerfile
Build stage: compiles and prepares app.
Run stage: copies only the essentials.
Base: distroless image.
Final size: 3MB 😍.
Why This Matters in DevOps
Production environments need lightweight images.
Faster push/pull → smoother CI/CD pipelines.
Lower resource usage on servers.
More secure (no unnecessary OS packages).
🔗 Check out my implementation here: GitHub Repo
🌐 See more about me: https://azmatahmed.netlify.app
Keywords: Docker, Multi-stage builds, Node.js Dockerfile, AWS EC2, Distroless images, DevOps best practices, Optimize Docker images, DevOps learning.
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