Chapter 6: Containerization Basics
Chapter 6 of 15
Chapter 6: Containerization Basics
6.1 What are Containers?
Containers package applications with dependencies for consistent deployment.
Container Benefits:
- Consistency across environments
- Isolation from host system
- Lightweight compared to VMs
- Fast startup times
6.2 Docker Basics
Docker is the most popular containerization platform.
# Dockerfile example
FROM node:14
WORKDIR /app
COPY package*.json ./
RUN npm install
COPY . .
EXPOSE 3000
CMD ["node", "app.js"]6.3 Container Orchestration
Orchestration tools manage container deployments.
- Kubernetes - Industry standard
- Docker Swarm - Docker-native
- Amazon ECS - AWS service