Docker is a platform that allows developers to build, run, and ship applications inside containers.
Think of containers as lightweight, portable boxes that contain everything your app needs—code, libraries, system tools, and settings.
🔑 Why Docker?
⚡ Consistency → Runs the same everywhere (dev, test, production).
📦 Lightweight → Containers share the host OS kernel (faster than VMs).
🔄 Portability → Deploy apps across different machines/clouds without issues.
🔐 Isolation → Each container runs independently, avoiding conflicts.
🚀 Scalability → Spin up/down containers quickly for microservices & scaling.
🛠 Basic Docker Workflow
1. Write your app code.
2. Create a Dockerfile (instructions for your app image).
3. Build an image → docker build
4. Run a container → docker run
🌍 Where Docker is Used?
Microservices architecture
DevOps & CI/CD pipelines
Cloud deployments (AWS, GCP, Azure)
Local development environments
Learn Docker - https://youtu.be/3c-iBn73dDE
