The original title is "Docker Practical Guide: Secrets, Multi-Stage Builds, and Container Debugging"

Short summary

A practical Docker tutorial covering secrets management, multi-stage builds, and debugging crashed containers. It explains why baking secrets into Dockerfiles is dangerous (visible via docker history), walks through env vars and .env files as intermediate solutions, and recommends dedicated secrets managers like Vault or AWS Secrets Manager for production. Written as an uncle-nephew dialogue with real command examples.

• •Never bake secrets into Dockerfile layers — docker history exposes them
• •Use .env files for dev, dedicated secrets managers for production
• •Covers multi-stage builds, live reload, and debugging crashed containers

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