Docker

Docker is the industry-standard platform for developing, shipping, and running applications in containers, providing consistent environments from development to production.

Core Components

• Docker Engine - Runtime for building and running containers
• Docker Compose - Multi-container application orchestration
• Docker Hub - Public registry for container images
• Docker Desktop - Development environment for Mac and Windows

Security Best Practices

• Use official and verified base images
• Scan images for vulnerabilities
• Run containers as non-root users
• Implement resource limits and quotas
• Use Docker Content Trust for image signing
• Minimize image layers and attack surface

Use Cases

• Application containerization
• Development environment standardization
• Microservices architecture
• CI/CD pipeline integration
• Legacy application modernization