Getting Started with Docker: Run Your First Container in Seconds

DevOps is about speed, automation, and reliability — and Docker is at the core of it.

🔹 Install Docker

sudo apt update
sudo apt install docker.io -y

🔹 Run Your First Container

docker run hello-world

🔹 Run Nginx

docker run -d -p 8080:80 nginx

Visit:

http://localhost:8080

🔹 Docker Compose Example

version: '3'
services:
  app:
    image: nginx
    ports:
      - "8080:80"

🔹 Why Docker?

• Isolation
• Portability
• Fast deployment