Docker
Articles about Docker and containers
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Layers and Caching in Docker
Every instruction in a Dockerfile creates a layer — an intermediate image. Docker caches layers and reuses them on subsequent...
Docker Hub — Image Registry
Docker Hub is the public Docker image registry. Think of it as npm for Node.js or PyPI for Python, but...
Docker Compose: Multi-Container Applications
Docker Compose is a tool for running multiple related containers as a single application. The configuration is defined in a...
Installing Docker: macOS, Windows, Linux
Download Docker Desktop from docker.com/products/docker-desktop.
Dockerfile: Building Your Own Images
Dockerfile — a text file with instructions for building an image. Each instruction becomes a layer.
Basic Docker Commands
bash docker images list downloaded images docker pull nginx pull an image docker rmi nginx remove an image docker image...
Docker Volumes: Persisting Data
By default, data inside a container is not persisted — delete the container and the data is gone. Volumes solve...
What Is Docker and Why You Need It
Docker solves one of the most common problems in software development: "It works on my machine, but not on the...
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