Introduction

Docker helps you package an application with everything it needs to run: code, dependencies, environment variables, and runtime settings. This cheat sheet covers the most useful Docker commands for daily development.

1. Check Docker Installation

docker --version docker info docker help

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2. Docker Images

List images

docker images

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Pull an image

docker pull nginx docker pull python:3.12 docker pull node:20

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Remove an image

docker rmi image_name docker rmi image_id

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Build an image from a Dockerfile

docker build -t my-app .

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Build with a specific Dockerfile

docker build -f Dockerfile.dev -t my-app-dev .

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