In Docker, images and containers are fundamental concepts, but they serve different purposes. Here's a clear explanation:

📌 How It Works

1. Pull an image from Docker Hub:

   sh
   docker pull nginx
   

2. List downloaded images:

   sh
   docker images
   

3. Create & run a container from an image:

   sh
   docker run -d --name my_nginx -p 8080:80 nginx
   

4. List running containers:

   sh
   docker ps
   

5. Stop and remove a container:

   sh
   docker stop my_nginxdocker rm my_nginx
   

6. Remove an image:

   sh
   docker rmi nginx
   

🎯 Key Takeaways

• Images are like blueprints; they define what a container should have.
• Containers are running instances of images that can be modified.
• You can create multiple containers from a single image.