How do I install docker desktop and run hello world?

# Install Docker Desktop 1. Visit [Docker Desktop](https://www.docker.com/products/docker-desktop) and download for your OS (Mac, Windows, Linux). 2. Run the installer and follow prompts. Start Docker Desktop. 3. Open terminal and verify: `docker --version` # Run First Container 1. Run: `docker run hello-world` 2. Run tutorial app: `docker run -d -p 80:80 docker/getting-started` 3. Open browser to `http://localhost` to interact with tutorial.

How do I master core concepts and basic commands?

## Key Concepts - **Image**: Read-only template (e.g., `docker/getting-started`). - **Container**: Running instance of image. ## Essential Commands ```bash # List images docker image ls # List running containers docker container ls # Stop container docker stop # Remove container docker rm ``` Practice via localhost tutorial: explore running/removing containers.

How do I build your first custom docker image?

## Create App 1. Create `app.py`: ```python from flask import Flask app = Flask(__name__) @app.route('/') def hello(): return "Hello Docker!" if __name__ == "main": app.run(host='0.0.0.0', port=80) ``` ## Dockerfile ```dockerfile FROM python:3.9-slim COPY . /app WORKDIR /app RUN pip install flask EXPOSE 80 CMD ["python", "app.py"] ``` ## Build & Run ```bash docker build -t my-flask-app . docker run -dp 3000:80 my-flask-app ``` Visit `localhost:3000`. Follow Docker 101 or getting-started tutorial for details. 64 66

How do I persist data with volumes and networks?

## Volumes ```bash # Create volume docker volume create mydata # Run with volume docker run -v mydata:/app/data my-flask-app ``` ## Networks ```bash docker network create mynet docker run --network mynet --name db postgres docker run --network mynet -p 3000:80 my-flask-app ``` Explore in getting-started tutorial app sections on volumes and networking. 66

How do I orchestrate with docker compose?

## docker-compose.yml ```yaml version: '3' services: web: build: . ports: - '3000:80' db: image: postgres volumes: - pgdata:/var/lib/postgresql/data volumes: pgdata: ``` ## Run ```bash docker compose up -d docker compose down ``` Test multi-container app. See tutorial for full examples. 66

Master Docker Basics: Install, Build, Deploy in 5 Steps

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Instant Toolkit

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📋
Step-by-Step Guide

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Install Docker Desktop

Visit Docker Desktop and download for your OS (Mac, Windows, Linux).
Run the installer and follow prompts. Start Docker Desktop.
Open terminal and verify: docker --version

Run First Container

Run: docker run hello-world
Run tutorial app: docker run -d -p 80:80 docker/getting-started
Open browser to http://localhost to interact with tutorial.

Why this step matters:

-Verifies setup and introduces core Docker workflow instantly
-Enables hands-on experimentation without delays

30-60 minutes

Docker Desktop, Terminal/Command Prompt, Web Browser

$0

Definition of Done

•Docker version command succeeds
•Hello-world container runs and outputs message
•Tutorial app accessible at localhost

Common Mistakes to Avoid

❌ Docker Desktop not running after install

→Check system tray/menu bar for Docker whale icon and start it

❌ Port 80 already in use

→Use different port like `docker run -d -p 8080:80 docker/getting-started` and visit localhost:8080

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Suggested Videos

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📚
Learning Resources

📖 Online Courses

Docker for the Absolute Beginner

beginner

KodeKloud

Introduction to Docker

beginner

DataCamp

Docker Fundamentals

beginner

learn.cantrill.io

📖 Recommended Books

Learn Docker in a Month of Lunches

beginner

by Elton Stoneman

The Docker Handbook

beginner

by freeCodeCamp

🌐 Helpful Websites

Docker Official Documentation

documentation

Complete reference, guides, and getting started

Docker Getting Started Tutorial

tutorial

Hands-on interactive tutorial

Docker Hub

registry

Search and share container images

🛠️ Useful Tools

Docker Desktop

Development

Desktop app for building/running containers

Docker CLI

CLI

Command-line interface included with Desktop

VS Code Docker Extension

IDE

Integrates Docker into your editor

Master Docker Basics: Install, Build, Deploy in 5 Steps