Docker has revolutionized the way applications are developed and deployed. This Docker cheatsheet is your comprehensive guide to mastering Docker, complete with clear definitions and practical examples. Whether you’re a novice or a seasoned pro, this guide will help you streamline your Docker workflow.
What is Docker?
Docker is an open-source platform for developing, shipping, and running applications in containers. Containers package an application and its dependencies into a single unit, ensuring consistency across various environments.
Basic Docker Commands
Get started with these fundamental Docker commands:
Run a container from an image.
docker run -d -p 80:8080 my-app
Build an image from a Dockerfile.
docker build -t my-image .
Download an image from a registry.
docker pull my-image
Push an image to a registry.
docker push my-image
Efficiently manage containers with these commands:
List running containers.
Stopping and Removing Containers
Stop and remove containers.
docker stop my-container docker rm my-container
Working with Images
Master image manipulation with these commands:
List downloaded images.
Remove unused images.
docker image prune
Inspect image details.
docker inspect my-image
Simplify multi-container applications with Docker Compose:
Define services in a
version: '3' services: web: image: nginx
Network and Volume Management
Manage networks and volumes efficiently:
Creating a Docker Network
Create a custom network.
docker network create my-network
Creating a Docker Volume
Create a named volume.
docker volume create my-volume
Advanced Docker Usage
Explore advanced Docker topics:
Dockerfile Best Practices
Follow Dockerfile best practices for efficient image builds.
Docker Hub and Registries
Publish and share images on Docker Hub or private registries.
Explore container orchestration with Docker Swarm for scaling and management.
Docker is a game-changer in the world of software development and deployment. This cheatsheet serves as your go-to reference for Docker commands and concepts. Whether you’re creating images, managing containers, or orchestrating multi-container applications, Docker’s versatility empowers you to build and deploy with confidence.