Docker for Beginners: Containerize Your Apps
Learn Docker basics, create Dockerfiles, and deploy containerized applications with this beginner-friendly guide.
Why Docker?
Docker revolutionized software deployment. Learn how to package your applications with all dependencies.
What is Docker?
Docker is a platform for developing, shipping, and running applications in containers.
Key Concepts
- Images: Blueprint for containers
- Containers: Running instances of images
- Dockerfile: Instructions to build an image
- Docker Hub: Repository for images
Your First Dockerfile
FROM node:16-alpine
WORKDIR /app
COPY package*.json ./
RUN npm install
COPY . .
EXPOSE 3000
CMD ["npm", "start"]
Next Steps
We'll deploy this to AWS ECS in the next tutorial!