Docker: Up & Running -

: When you deploy, you throw away the old environment entirely. This prevents "configuration drift" where apps accidentally rely on artifacts or manual "hotfixes" left behind by previous releases. Building for Production

While many resources focus on basic commands, this guide targets the complexities of : Docker: Up & Running

Docker has fundamentally changed how we build and ship software by providing a layer of isolation that reduces the "human communication burden" between developers and operations. : When you deploy, you throw away the

: For production stability, you must set memory and CPU limits to prevent a single container from exhausting host resources and crashing the system. : For production stability, you must set memory

The following write-up is based on the industry-standard guide by Sean Kane and Karl Matthias. Core Philosophy: Atomic Containers

: Learn to use multi-stage builds to create the smallest possible production-ready containers by separating build-time dependencies from the final runtime.

: Containers are intended to be ephemeral—nothing in the application's environment should live longer than the application itself.