Docker Starter

1. Introduction to Docker

• What is Docker?
• Why use Docker?
• Docker architecture
• Docker editions

2. Docker Installation and Setup

• Installing Docker on different operating systems
• Running and testing a Docker installation
• Docker CLI and Dockerfile

3. Building Docker Images

• Creating Docker images from scratch
• Building Docker images using Dockerfiles
• Best practices for creating Docker images

4. Working with Docker Containers

• Creating and running Docker containers
• Understanding container lifecycles
• Managing Docker containers using Docker CLI and Docker Compose

5. Docker Networking

• Introduction to Docker networking
• Different types of Docker networks
• Configuring Docker networks

6. Docker Storage

• Introduction to Docker storage
• Docker volumes and bindings
• Managing data in Docker containers

7. Docker Compose

• What is Docker Compose?
• Writing Docker Compose files
• Using Docker Compose to manage multi-container applications

8. Docker Swarm

• Introduction to Docker Swarm
• Setting up a Docker Swarm cluster
• Deploying and managing services in Docker Swarm

9. Docker Security

• Docker security best practices
• Understanding Docker security risks
• Securing Docker images and containers

10. Docker Orchestration Tools

• Overview of popular Docker orchestration tools (e.g., Kubernetes, Amazon ECS)
• Differences between Docker Swarm and other orchestration tools
• Choosing the right orchestration tool for your needs

There are plenty of online resources available for learning Docker, including the official Docker documentation, online courses, and tutorial videos. Good luck with your learning journey!

Samples

1. Hello World This is a simple example that demonstrates how to run a Docker container that prints "Hello World!" to the console.

docker run hello-world

2. Building a Docker Image This example demonstrates how to build a Docker image from a Dockerfile.

Dockerfile:

sql
FROM node:14-alpine
WORKDIR /app
COPY package.json .
RUN npm install
COPY . .
CMD ["npm", "start"]

Commands:

css
docker build -t myapp .
docker run -p 3000:3000 myapp

3. Running a Web Application This example demonstrates how to run a web application using Docker.

Dockerfile:

sql
FROM node:14-alpine
WORKDIR /app
COPY package.json .
RUN npm install
COPY . .
EXPOSE 3000
CMD ["npm", "start"]

4. Docker Compose This example demonstrates how to use Docker Compose to manage a multi-container application.

Dockerfile:

sql
FROM node:14-alpine
WORKDIR /app
COPY package.json .
RUN npm install
COPY . .
EXPOSE 3000
CMD ["npm", "start"]

Docker Compose file:

yaml
version: '3'
services:
  web:
    build: .
    ports:
      - "3000:3000"
  db:
    image: postgres

Commands:

docker-compose up

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