🐳 Docker Tip: Shrink Your Image with Multi-Stage Builds + .dockerignore Power

🐳 Docker Tip: Shrink Your Image with Multi-Stage Builds + .dockerignore Power

Tired of bloated Docker images? Here’s how to reduce image size dramatically and secure your builds.

🔧 Use Multi-Stage Builds + Proper .dockerignore

Why it matters: Large images increase CI/CD time, slow down container start, and expose internal build artifacts. Combining multi-stage builds with .dockerignore can cut your image size by 70%+.


Article content

AND use .dockerignore:

.git
*.md
*.log
.env
node_modules/        

✅ Benefits

  • ✅ Final image size ~10MB (instead of hundreds)
  • ✅ No Go toolchain or source code in prod image
  • ✅ Faster builds, fewer vulnerabilities

Pro tip: Use Dive to inspect layer size and contents interactively.


🔁 Docker smarter, not harder. 💬 What’s your best image optimization trick?

#docker #devops #containers #golang #microservices #cloudnative #techTips



Vinícius Dias

Senior Software Engineer | Golang | ReactJS | TypeScript | AWS | Kubernetes | Docker | RabbitMQ

1d

Smaller images are faster to build and run, and they are also more secure. Nice article!

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Thiago Nunes Monteiro

Senior Mobile Developer | Android Software Engineer | Jetpack Compose | GraphQL | Kotlin | Java | React Native | Swift

2d

Interesting

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Aislan Freitas

Senior Data Science | Data Engineer | MLOps | Python Developer | Machine Learning | Big data | Gen AI | LLM | RAG | SQL | GCP

2d

Great post! Technology has the power to transform our daily lives, and it's inspiring to see how innovations are shaping the future. Always excited to see what's coming next!

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Aislan Freitas

Senior Data Science | Data Engineer | MLOps | Python Developer | Machine Learning | Big data | Gen AI | LLM | RAG | SQL | GCP

2d

Great post! Technology has the power to transform our daily lives, and it's inspiring to see how innovations are shaping the future. Always excited to see what's coming next!

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Reply
Fabrício Ferreira

Senior Flutter Engineer | Mobile Developer | Mobile Engineer | Dart | Android | iOS | Kotlin

2d

Useful tips Elison G.

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